Adapter for Laptop from eBay is OK?

  • Thread starter Thread starter MapleE.
  • Start date Start date
M

MapleE.

Hi:
I need a spare adapter for my Laptop.

I went to the eBay site whether it has an Adapter I've been
looking for and found the similar one. I contacted a seller
whether the Adapter listed can be used for my Laptop.

He promptly responsed by e-mail, ... 'it's PERFECTLY fits
to my Laptop.' He has an excellent record in the eBay site
as a good seller.

However, since this is electrical, I started to concern
whether it's safe to buy from eBay site.

My question is:
Is it OK to buy an Adapter for my HP Laptop from a third-party?
Because, its maker, the HP is very expensive while an eBay-seller is half
its price.

Thanks for your 'honest' and 'candid' opinion on this regard.
 
MapleE. said:
Hi:
I need a spare adapter for my Laptop.

I went to the eBay site whether it has an Adapter I've been
looking for and found the similar one. I contacted a seller
whether the Adapter listed can be used for my Laptop.

He promptly responsed by e-mail, ... 'it's PERFECTLY fits
to my Laptop.' He has an excellent record in the eBay site
as a good seller.

However, since this is electrical, I started to concern
whether it's safe to buy from eBay site.

My question is:
Is it OK to buy an Adapter for my HP Laptop from a third-party?
Because, its maker, the HP is very expensive while an eBay-seller is half
its price.

Thanks for your 'honest' and 'candid' opinion on this regard.
Click to expand...

There are 3 things to worry about when purchasing a replacement ac adapter
for a laptop. The voltage, the amperage (more is ok) and the connector
size. You can do some comparisons here: http://www.laptopacadapter.com/hp/
If the ac adapter fits the 3 criteria and the ebay seller has a good
reputation then I wouldn't have any qualms about buying it.
 
Hi:
Thanks for the response.

This is to be 'spare,' because I have an adaptor which came with the
Laptop. However, I want to use it both upstaire and downstaire
alternatively
when the family is not around. Keeping a 'spare' adaptor is for the sake of
convenience, maily because I want to save battery as much as possible, as
hearing that battery is awfully expensive.

eBay seller sounds a good one, but because of minimum 'electrical' stocks
in his seller-site, that concerns me, for just in case, like not working
good and the like.

Thanks for the site and your opinion. I really appreciate it.
 
Depending on the type of battery, using the AC all the time
can over-charge the battery and shorten the life. It
depends on whether the battery is old or new technology and
how the AC powers the computer. If the AC power can run
the computer without the battery installed or can be
switched so the battery is not over-charged, it should not
hurt the battery.

If the battery is not in the circuit as a "shock absorber
[capacitor]" the surges that come through the cheap adapter
can damage the computer.

Request the full specs on the adapter for such details as
ripple, voltage, output, must be enough to run the computer
and charge the battery. Ask if the will warranty the laptop
, in writing,for damage caused by their adapter?


| Hi:
| Thanks for the response.
|
| This is to be 'spare,' because I have an adaptor which
came with the
| Laptop. However, I want to use it both upstaire and
downstaire
| alternatively
| when the family is not around. Keeping a 'spare' adaptor
is for the sake of
| convenience, maily because I want to save battery as much
as possible, as
| hearing that battery is awfully expensive.
|
| eBay seller sounds a good one, but because of minimum
'electrical' stocks
| in his seller-site, that concerns me, for just in case,
like not working
| good and the like.
|
| Thanks for the site and your opinion. I really appreciate
it.
|
|
| | > | >> Hi:
| >> I need a spare adapter for my Laptop.
| >>
| >> I went to the eBay site whether it has an Adapter I've
been
| >> looking for and found the similar one. I contacted a
seller
| >> whether the Adapter listed can be used for my Laptop.
| >>
| >> He promptly responsed by e-mail, ... 'it's PERFECTLY
fits
| >> to my Laptop.' He has an excellent record in the eBay
site
| >> as a good seller.
| >>
| >> However, since this is electrical, I started to
concern
| >> whether it's safe to buy from eBay site.
| >>
| >> My question is:
| >> Is it OK to buy an Adapter for my HP Laptop from a
third-party?
| >> Because, its maker, the HP is very expensive while an
eBay-seller is half
| >> its price.
| >>
| >> Thanks for your 'honest' and 'candid' opinion on this
regard.
| >
| > There are 3 things to worry about when purchasing a
replacement ac adapter
| > for a laptop. The voltage, the amperage (more is ok)
and the connector
| > size. You can do some comparisons here:
| > http://www.laptopacadapter.com/hp/ If the ac adapter
fits the 3 criteria
| > and the ebay seller has a good reputation then I
wouldn't have any qualms
| > about buying it.
| >
|
|
 
Hi Jim Macklin:
Thanks all the help. I truly appreciate your informative response on
this regard.

As to the Laptop, I just purchased it a week ago, then it's new.

One thing over which I concern is, ... since the day I started to use
the Laptop, I mostly depend on an Adpator. I rarely use 'Battery,'
in fear that a life of Battery could shorten. However, it sounds other way
around, ... 'shorten' its life if not use the Battery. Should not depend on
ONLY an Adaptor, it that correct? Or, can I use an Apator with taking-off
a Battery? This might be a bit 'silly question' to ask, but, ...

Then, in my assumption, I should use both an Adaptor and Battery
alternatively,
like a Battery when use it in the upstair and an Adaptor when using in the
downstairs.
Normally, I use the Laptop for about two-hours' period that might be a
problem?

Your opinion on this would be appreciated.


Jim Macklin said:
Depending on the type of battery, using the AC all the time
can over-charge the battery and shorten the life. It
depends on whether the battery is old or new technology and
how the AC powers the computer. If the AC power can run
the computer without the battery installed or can be
switched so the battery is not over-charged, it should not
hurt the battery.

If the battery is not in the circuit as a "shock absorber
[capacitor]" the surges that come through the cheap adapter
can damage the computer.

Request the full specs on the adapter for such details as
ripple, voltage, output, must be enough to run the computer
and charge the battery. Ask if the will warranty the laptop
, in writing,for damage caused by their adapter?


| Hi:
| Thanks for the response.
|
| This is to be 'spare,' because I have an adaptor which
came with the
| Laptop. However, I want to use it both upstaire and
downstaire
| alternatively
| when the family is not around. Keeping a 'spare' adaptor
is for the sake of
| convenience, maily because I want to save battery as much
as possible, as
| hearing that battery is awfully expensive.
|
| eBay seller sounds a good one, but because of minimum
'electrical' stocks
| in his seller-site, that concerns me, for just in case,
like not working
| good and the like.
|
| Thanks for the site and your opinion. I really appreciate
it.
|
|
| | > | >> Hi:
| >> I need a spare adapter for my Laptop.
| >>
| >> I went to the eBay site whether it has an Adapter I've
been
| >> looking for and found the similar one. I contacted a
seller
| >> whether the Adapter listed can be used for my Laptop.
| >>
| >> He promptly responsed by e-mail, ... 'it's PERFECTLY
fits
| >> to my Laptop.' He has an excellent record in the eBay
site
| >> as a good seller.
| >>
| >> However, since this is electrical, I started to
concern
| >> whether it's safe to buy from eBay site.
| >>
| >> My question is:
| >> Is it OK to buy an Adapter for my HP Laptop from a
third-party?
| >> Because, its maker, the HP is very expensive while an
eBay-seller is half
| >> its price.
| >>
| >> Thanks for your 'honest' and 'candid' opinion on this
regard.
| >
| > There are 3 things to worry about when purchasing a
replacement ac adapter
| > for a laptop. The voltage, the amperage (more is ok)
and the connector
| > size. You can do some comparisons here:
| > http://www.laptopacadapter.com/hp/ If the ac adapter
fits the 3 criteria
| > and the ebay seller has a good reputation then I
wouldn't have any qualms
| > about buying it.
| >
|
|
Click to expand...
 
Please read the link appropriate for your laptop from the following list.
http://www.google.com/search?hl=en&q=extending+battery+life

MapleE. said:
Hi Jim Macklin:
Thanks all the help. I truly appreciate your informative response on
this regard.

As to the Laptop, I just purchased it a week ago, then it's new.

One thing over which I concern is, ... since the day I started to use
the Laptop, I mostly depend on an Adpator. I rarely use 'Battery,'
in fear that a life of Battery could shorten. However, it sounds other way
around, ... 'shorten' its life if not use the Battery. Should not depend on
ONLY an Adaptor, it that correct? Or, can I use an Apator with taking-off
a Battery? This might be a bit 'silly question' to ask, but, ...

Then, in my assumption, I should use both an Adaptor and Battery
alternatively,
like a Battery when use it in the upstair and an Adaptor when using in the
downstairs.
Normally, I use the Laptop for about two-hours' period that might be a
problem?

Your opinion on this would be appreciated.


Depending on the type of battery, using the AC all the time
can over-charge the battery and shorten the life. It
depends on whether the battery is old or new technology and
how the AC powers the computer. If the AC power can run
the computer without the battery installed or can be
switched so the battery is not over-charged, it should not
hurt the battery.

If the battery is not in the circuit as a "shock absorber
[capacitor]" the surges that come through the cheap adapter
can damage the computer.

Request the full specs on the adapter for such details as
ripple, voltage, output, must be enough to run the computer
and charge the battery. Ask if the will warranty the laptop
, in writing,for damage caused by their adapter?


| Hi:
| Thanks for the response.
|
| This is to be 'spare,' because I have an adaptor which
came with the
| Laptop. However, I want to use it both upstaire and
downstaire
| alternatively
| when the family is not around. Keeping a 'spare' adaptor
is for the sake of
| convenience, maily because I want to save battery as much
as possible, as
| hearing that battery is awfully expensive.
|
| eBay seller sounds a good one, but because of minimum
'electrical' stocks
| in his seller-site, that concerns me, for just in case,
like not working
| good and the like.
|
| Thanks for the site and your opinion. I really appreciate
it.
|
|
| | > | >> Hi:
| >> I need a spare adapter for my Laptop.
| >>
| >> I went to the eBay site whether it has an Adapter I've
been
| >> looking for and found the similar one. I contacted a
seller
| >> whether the Adapter listed can be used for my Laptop.
| >>
| >> He promptly responsed by e-mail, ... 'it's PERFECTLY
fits
| >> to my Laptop.' He has an excellent record in the eBay
site
| >> as a good seller.
| >>
| >> However, since this is electrical, I started to
concern
| >> whether it's safe to buy from eBay site.
| >>
| >> My question is:
| >> Is it OK to buy an Adapter for my HP Laptop from a
third-party?
| >> Because, its maker, the HP is very expensive while an
eBay-seller is half
| >> its price.
| >>
| >> Thanks for your 'honest' and 'candid' opinion on this
regard.
| >
| > There are 3 things to worry about when purchasing a
replacement ac adapter
| > for a laptop. The voltage, the amperage (more is ok)
and the connector
| > size. You can do some comparisons here:
| > http://www.laptopacadapter.com/hp/ If the ac adapter
fits the 3 criteria
| > and the ebay seller has a good reputation then I
wouldn't have any qualms
| > about buying it.
| >
|
|
Click to expand...
Click to expand...
 
Depending on the type of battery, using the AC all the time
can over-charge the battery and shorten the life. It
depends on whether the battery is old or new technology and
how the AC powers the computer.
Click to expand...


Laptops with NiCd/NiMH batteries are typically in the 486/Pentium I
class...virtually everything since then is Li-Ion.

Most of the google hits in the other post refer to getting lots of time from
a charge, but a few go into making the battery live for a few years. Above
all else, Li-Ion batteries hate to be fully discharged. You have to do it
once to calibrate the charging circuits, but subsequently avoid it if you
can...Li-Ion does not need to ever fully discharge again. But you have a
battery-powered computer and a CPU that can throttle itself, so use it when
you have to.

Li-Ion also hates heat. If the charging circuits are built and calibrated
properly a Li-Ion should never overcharge/overheat, but they can get hot in
cars and if the battery is situated next to the hdd in the laptop.

I've had some Li-Ion batteries last six years (Inspiron 7000) and some last
2 years (Latitude D600). Just luck of the draw, mostly.

-John O
 
Batteries designed to be recharged need exercise, sort of
like the doctors who tell you to walk instead of taking the
elevator. The old rule for Nicad batteries was to run the
battery until it was discharged and then charge it or a
"memory effect" would happen and the battery would "assume"
that the small amount of charge was a full charge and then
the battery would only have the limited capacity of the
last partial charge.
Newer batteries are said to not have that problem.

Google for "rechargeable batteries cycles"


Rechargeable battery - Wikipedia, the free encyclopedia
Attempting to recharge non-rechargeable batteries may
lead to a battery explosion. ... Nickel cadmium battery:
This chemistry gives the longest cycle life ...
en.wikipedia.org/wiki/Rechargeable_battery - 37k -
Cached - Similar pages

Steve's Digicams - Rechargeable Battery Information
Cycle charges, discharges, and then recharges
rechargeable batteries without requiring several repeat
cycles. Restores rechargeable batteries to their ...
www.steves-digicams.com/nimh_batteries.html - 36k -
Cached - Similar pages

Digital Imaging Accessories Review: The Great Battery
Shootout
I've started doing a little battery life-cycle testing
in "deep ... Some cameras come with custom-designed
rechargeable LiIon battery packs in the box - If ...
www.imaging-resource.com/ACCS/BATTS/BATTS.HTM - 70k -
Dec 17, 2006 - Cached - Similar pages

eBay Guides - Rechargeable Battery Care and Maintenance
Guide
Here's a Summary of What You Need to Know About
Rechargeable Batteries Ni-Cad Battery. PRO: Steady Voltage
Throughout Discharge Cycle, Good Shelf Life ...
|
reviews.ebay.com/Rechargeable-Battery-Care-and-Maintenance-Guide_W0QQugidZ10000000001229809
- 35k - Cached - Similar pages
|
Apple - Batteries
A charge cycle means using all of the battery's power,
but that doesn't ... As with other rechargeable batteries,
you may eventually need to replace your ...
www.apple.com/batteries/ - 13k - Cached - Similar
pages

Rechargeable Batteries Alkaline Lithium NiMH Battery
Capacity improvement or Quick charging will always
decrease the number of cycles. Every rechargeable battery
cell available on the market above 2100 mAh ...
www.nimhbattery.com/rechargeable-batteries.php - 35k -
Cached - Similar pages

|| Hi Jim Macklin:
|| Thanks all the help. I truly appreciate your informative
response on
|| this regard.
||
|| As to the Laptop, I just purchased it a week ago, then
it's new.
||
|| One thing over which I concern is, ... since the day I
started to use
|| the Laptop, I mostly depend on an Adpator. I rarely use
'Battery,'
|| in fear that a life of Battery could shorten. However,
it sounds other way
|| around, ... 'shorten' its life if not use the Battery.
Should not depend on
|| ONLY an Adaptor, it that correct? Or, can I use an
Apator with taking-off
|| a Battery? This might be a bit 'silly question' to ask,
but, ...
||
|| Then, in my assumption, I should use both an Adaptor and
Battery
|| alternatively,
|| like a Battery when use it in the upstair and an Adaptor
when using in the
|| downstairs.
|| Normally, I use the Laptop for about two-hours' period
that might be a
|| problem?
||
|| Your opinion on this would be appreciated.
||
||
|| "Jim Macklin" <p51mustang[threeX12]@xxxhotmail.calm>
wrote in message
|| || > Depending on the type of battery, using the AC all the
time
|| > can over-charge the battery and shorten the life. It
|| > depends on whether the battery is old or new technology
and
|| > how the AC powers the computer. If the AC power can
run
|| > the computer without the battery installed or can be
|| > switched so the battery is not over-charged, it should
not
|| > hurt the battery.
|| >
|| > If the battery is not in the circuit as a "shock
absorber
|| > [capacitor]" the surges that come through the cheap
adapter
|| > can damage the computer.
|| >
|| > Request the full specs on the adapter for such details
as
|| > ripple, voltage, output, must be enough to run the
computer
|| > and charge the battery. Ask if the will warranty the
laptop
|| > , in writing,for damage caused by their adapter?
|| >
|| >
|| > || > | Hi:
|| > | Thanks for the response.
|| > |
|| > | This is to be 'spare,' because I have an adaptor
which
|| > came with the
|| > | Laptop. However, I want to use it both upstaire and
|| > downstaire
|| > | alternatively
|| > | when the family is not around. Keeping a 'spare'
adaptor
|| > is for the sake of
|| > | convenience, maily because I want to save battery as
much
|| > as possible, as
|| > | hearing that battery is awfully expensive.
|| > |
|| > | eBay seller sounds a good one, but because of
minimum
|| > 'electrical' stocks
|| > | in his seller-site, that concerns me, for just in
case,
|| > like not working
|| > | good and the like.
|| > |
|| > | Thanks for the site and your opinion. I really
appreciate
|| > it.
|| > |
|| > |
|| > | || > | > || > | >> Hi:
|| > | >> I need a spare adapter for my Laptop.
|| > | >>
|| > | >> I went to the eBay site whether it has an Adapter
I've
|| > been
|| > | >> looking for and found the similar one. I
contacted a
|| > seller
|| > | >> whether the Adapter listed can be used for my
Laptop.
|| > | >>
|| > | >> He promptly responsed by e-mail, ... 'it's
PERFECTLY
|| > fits
|| > | >> to my Laptop.' He has an excellent record in the
eBay
|| > site
|| > | >> as a good seller.
|| > | >>
|| > | >> However, since this is electrical, I started to
|| > concern
|| > | >> whether it's safe to buy from eBay site.
|| > | >>
|| > | >> My question is:
|| > | >> Is it OK to buy an Adapter for my HP Laptop from a
|| > third-party?
|| > | >> Because, its maker, the HP is very expensive while
an
|| > eBay-seller is half
|| > | >> its price.
|| > | >>
|| > | >> Thanks for your 'honest' and 'candid' opinion on
this
|| > regard.
|| > | >
|| > | > There are 3 things to worry about when purchasing a
|| > replacement ac adapter
|| > | > for a laptop. The voltage, the amperage (more is
ok)
|| > and the connector
|| > | > size. You can do some comparisons here:
|| > | > http://www.laptopacadapter.com/hp/ If the ac
adapter
|| > fits the 3 criteria
|| > | > and the ebay seller has a good reputation then I
|| > wouldn't have any qualms
|| > | > about buying it.
|| > | >
|| > |
|| > |
|| >
|| >
||
||
 
Check the voltage/amperage on the one it's supposed to have. If those
match, it doesn't matter who you buy it from.
My cell phone company told me not to buy an adapter from WalMart, because it
might fit, but it will destroy the device if the voltage/amperage is wrong
(and void warranty if you didn't get the adapter from them).

You might want to read the latest news on the exploding laptop batteries and
make sure yours is relatively safe..
 
Here is a link from HP
http://h20239.www2.hp.com/techcenter/battery/battery_basics.htm



in message | Batteries designed to be recharged need exercise, sort of
| like the doctors who tell you to walk instead of taking
the
| elevator. The old rule for Nicad batteries was to run the
| battery until it was discharged and then charge it or a
| "memory effect" would happen and the battery would
"assume"
| that the small amount of charge was a full charge and then
| the battery would only have the limited capacity of the
| last partial charge.
| Newer batteries are said to not have that problem.
|
| Google for "rechargeable batteries cycles"
|
|
| Rechargeable battery - Wikipedia, the free encyclopedia
| Attempting to recharge non-rechargeable batteries may
| lead to a battery explosion. ... Nickel cadmium battery:
| This chemistry gives the longest cycle life ...
| en.wikipedia.org/wiki/Rechargeable_battery - 37k -
| Cached - Similar pages
|
| Steve's Digicams - Rechargeable Battery Information
| Cycle charges, discharges, and then recharges
| rechargeable batteries without requiring several repeat
| cycles. Restores rechargeable batteries to their ...
| www.steves-digicams.com/nimh_batteries.html - 36k -
| Cached - Similar pages
|
| Digital Imaging Accessories Review: The Great Battery
| Shootout
| I've started doing a little battery life-cycle
testing
| in "deep ... Some cameras come with custom-designed
| rechargeable LiIon battery packs in the box - If ...
| www.imaging-resource.com/ACCS/BATTS/BATTS.HTM - 70k -
| Dec 17, 2006 - Cached - Similar pages
|
| eBay Guides - Rechargeable Battery Care and Maintenance
| Guide
| Here's a Summary of What You Need to Know About
| Rechargeable Batteries Ni-Cad Battery. PRO: Steady Voltage
| Throughout Discharge Cycle, Good Shelf Life ...
||
|
reviews.ebay.com/Rechargeable-Battery-Care-and-Maintenance-Guide_W0QQugidZ10000000001229809
| - 35k - Cached - Similar pages
||
| Apple - Batteries
| A charge cycle means using all of the battery's
power,
| but that doesn't ... As with other rechargeable batteries,
| you may eventually need to replace your ...
| www.apple.com/batteries/ - 13k - Cached - Similar
| pages
|
| Rechargeable Batteries Alkaline Lithium NiMH Battery
| Capacity improvement or Quick charging will always
| decrease the number of cycles. Every rechargeable battery
| cell available on the market above 2100 mAh ...
| www.nimhbattery.com/rechargeable-batteries.php -
35k -
| Cached - Similar pages
|
| ||| Hi Jim Macklin:
||| Thanks all the help. I truly appreciate your
informative
| response on
||| this regard.
|||
||| As to the Laptop, I just purchased it a week ago, then
| it's new.
|||
||| One thing over which I concern is, ... since the day I
| started to use
||| the Laptop, I mostly depend on an Adpator. I rarely use
| 'Battery,'
||| in fear that a life of Battery could shorten. However,
| it sounds other way
||| around, ... 'shorten' its life if not use the Battery.
| Should not depend on
||| ONLY an Adaptor, it that correct? Or, can I use an
| Apator with taking-off
||| a Battery? This might be a bit 'silly question' to ask,
| but, ...
|||
||| Then, in my assumption, I should use both an Adaptor and
| Battery
||| alternatively,
||| like a Battery when use it in the upstair and an Adaptor
| when using in the
||| downstairs.
||| Normally, I use the Laptop for about two-hours' period
| that might be a
||| problem?
|||
||| Your opinion on this would be appreciated.
|||
|||
||| "Jim Macklin" <p51mustang[threeX12]@xxxhotmail.calm>
| wrote in message
||| ||| > Depending on the type of battery, using the AC all the
| time
||| > can over-charge the battery and shorten the life. It
||| > depends on whether the battery is old or new
technology
| and
||| > how the AC powers the computer. If the AC power can
| run
||| > the computer without the battery installed or can be
||| > switched so the battery is not over-charged, it should
| not
||| > hurt the battery.
||| >
||| > If the battery is not in the circuit as a "shock
| absorber
||| > [capacitor]" the surges that come through the cheap
| adapter
||| > can damage the computer.
||| >
||| > Request the full specs on the adapter for such details
| as
||| > ripple, voltage, output, must be enough to run the
| computer
||| > and charge the battery. Ask if the will warranty the
| laptop
||| > , in writing,for damage caused by their adapter?
||| >
||| >
||| > ||| > | Hi:
||| > | Thanks for the response.
||| > |
||| > | This is to be 'spare,' because I have an adaptor
| which
||| > came with the
||| > | Laptop. However, I want to use it both upstaire and
||| > downstaire
||| > | alternatively
||| > | when the family is not around. Keeping a 'spare'
| adaptor
||| > is for the sake of
||| > | convenience, maily because I want to save battery as
| much
||| > as possible, as
||| > | hearing that battery is awfully expensive.
||| > |
||| > | eBay seller sounds a good one, but because of
| minimum
||| > 'electrical' stocks
||| > | in his seller-site, that concerns me, for just in
| case,
||| > like not working
||| > | good and the like.
||| > |
||| > | Thanks for the site and your opinion. I really
| appreciate
||| > it.
||| > |
||| > |
||| > | ||| > | > ||| > | >> Hi:
||| > | >> I need a spare adapter for my Laptop.
||| > | >>
||| > | >> I went to the eBay site whether it has an Adapter
| I've
||| > been
||| > | >> looking for and found the similar one. I
| contacted a
||| > seller
||| > | >> whether the Adapter listed can be used for my
| Laptop.
||| > | >>
||| > | >> He promptly responsed by e-mail, ... 'it's
| PERFECTLY
||| > fits
||| > | >> to my Laptop.' He has an excellent record in
the
| eBay
||| > site
||| > | >> as a good seller.
||| > | >>
||| > | >> However, since this is electrical, I started to
||| > concern
||| > | >> whether it's safe to buy from eBay site.
||| > | >>
||| > | >> My question is:
||| > | >> Is it OK to buy an Adapter for my HP Laptop from
a
||| > third-party?
||| > | >> Because, its maker, the HP is very expensive
while
| an
||| > eBay-seller is half
||| > | >> its price.
||| > | >>
||| > | >> Thanks for your 'honest' and 'candid' opinion on
| this
||| > regard.
||| > | >
||| > | > There are 3 things to worry about when purchasing
a
||| > replacement ac adapter
||| > | > for a laptop. The voltage, the amperage (more is
| ok)
||| > and the connector
||| > | > size. You can do some comparisons here:
||| > | > http://www.laptopacadapter.com/hp/ If the ac
| adapter
||| > fits the 3 criteria
||| > | > and the ebay seller has a good reputation then I
||| > wouldn't have any qualms
||| > | > about buying it.
||| > | >
||| > |
||| > |
||| >
||| >
|||
|||
|
|
 
and another
http://h20239.www2.hp.com/techcenter/battery/Battery_max.htm




in message | Batteries designed to be recharged need exercise, sort of
| like the doctors who tell you to walk instead of taking
the
| elevator. The old rule for Nicad batteries was to run the
| battery until it was discharged and then charge it or a
| "memory effect" would happen and the battery would
"assume"
| that the small amount of charge was a full charge and then
| the battery would only have the limited capacity of the
| last partial charge.
| Newer batteries are said to not have that problem.
|
| Google for "rechargeable batteries cycles"
|
|
| Rechargeable battery - Wikipedia, the free encyclopedia
| Attempting to recharge non-rechargeable batteries may
| lead to a battery explosion. ... Nickel cadmium battery:
| This chemistry gives the longest cycle life ...
| en.wikipedia.org/wiki/Rechargeable_battery - 37k -
| Cached - Similar pages
|
| Steve's Digicams - Rechargeable Battery Information
| Cycle charges, discharges, and then recharges
| rechargeable batteries without requiring several repeat
| cycles. Restores rechargeable batteries to their ...
| www.steves-digicams.com/nimh_batteries.html - 36k -
| Cached - Similar pages
|
| Digital Imaging Accessories Review: The Great Battery
| Shootout
| I've started doing a little battery life-cycle
testing
| in "deep ... Some cameras come with custom-designed
| rechargeable LiIon battery packs in the box - If ...
| www.imaging-resource.com/ACCS/BATTS/BATTS.HTM - 70k -
| Dec 17, 2006 - Cached - Similar pages
|
| eBay Guides - Rechargeable Battery Care and Maintenance
| Guide
| Here's a Summary of What You Need to Know About
| Rechargeable Batteries Ni-Cad Battery. PRO: Steady Voltage
| Throughout Discharge Cycle, Good Shelf Life ...
||
|
reviews.ebay.com/Rechargeable-Battery-Care-and-Maintenance-Guide_W0QQugidZ10000000001229809
| - 35k - Cached - Similar pages
||
| Apple - Batteries
| A charge cycle means using all of the battery's
power,
| but that doesn't ... As with other rechargeable batteries,
| you may eventually need to replace your ...
| www.apple.com/batteries/ - 13k - Cached - Similar
| pages
|
| Rechargeable Batteries Alkaline Lithium NiMH Battery
| Capacity improvement or Quick charging will always
| decrease the number of cycles. Every rechargeable battery
| cell available on the market above 2100 mAh ...
| www.nimhbattery.com/rechargeable-batteries.php -
35k -
| Cached - Similar pages
|
| ||| Hi Jim Macklin:
||| Thanks all the help. I truly appreciate your
informative
| response on
||| this regard.
|||
||| As to the Laptop, I just purchased it a week ago, then
| it's new.
|||
||| One thing over which I concern is, ... since the day I
| started to use
||| the Laptop, I mostly depend on an Adpator. I rarely use
| 'Battery,'
||| in fear that a life of Battery could shorten. However,
| it sounds other way
||| around, ... 'shorten' its life if not use the Battery.
| Should not depend on
||| ONLY an Adaptor, it that correct? Or, can I use an
| Apator with taking-off
||| a Battery? This might be a bit 'silly question' to ask,
| but, ...
|||
||| Then, in my assumption, I should use both an Adaptor and
| Battery
||| alternatively,
||| like a Battery when use it in the upstair and an Adaptor
| when using in the
||| downstairs.
||| Normally, I use the Laptop for about two-hours' period
| that might be a
||| problem?
|||
||| Your opinion on this would be appreciated.
|||
|||
||| "Jim Macklin" <p51mustang[threeX12]@xxxhotmail.calm>
| wrote in message
||| ||| > Depending on the type of battery, using the AC all the
| time
||| > can over-charge the battery and shorten the life. It
||| > depends on whether the battery is old or new
technology
| and
||| > how the AC powers the computer. If the AC power can
| run
||| > the computer without the battery installed or can be
||| > switched so the battery is not over-charged, it should
| not
||| > hurt the battery.
||| >
||| > If the battery is not in the circuit as a "shock
| absorber
||| > [capacitor]" the surges that come through the cheap
| adapter
||| > can damage the computer.
||| >
||| > Request the full specs on the adapter for such details
| as
||| > ripple, voltage, output, must be enough to run the
| computer
||| > and charge the battery. Ask if the will warranty the
| laptop
||| > , in writing,for damage caused by their adapter?
||| >
||| >
||| > ||| > | Hi:
||| > | Thanks for the response.
||| > |
||| > | This is to be 'spare,' because I have an adaptor
| which
||| > came with the
||| > | Laptop. However, I want to use it both upstaire and
||| > downstaire
||| > | alternatively
||| > | when the family is not around. Keeping a 'spare'
| adaptor
||| > is for the sake of
||| > | convenience, maily because I want to save battery as
| much
||| > as possible, as
||| > | hearing that battery is awfully expensive.
||| > |
||| > | eBay seller sounds a good one, but because of
| minimum
||| > 'electrical' stocks
||| > | in his seller-site, that concerns me, for just in
| case,
||| > like not working
||| > | good and the like.
||| > |
||| > | Thanks for the site and your opinion. I really
| appreciate
||| > it.
||| > |
||| > |
||| > | ||| > | > ||| > | >> Hi:
||| > | >> I need a spare adapter for my Laptop.
||| > | >>
||| > | >> I went to the eBay site whether it has an Adapter
| I've
||| > been
||| > | >> looking for and found the similar one. I
| contacted a
||| > seller
||| > | >> whether the Adapter listed can be used for my
| Laptop.
||| > | >>
||| > | >> He promptly responsed by e-mail, ... 'it's
| PERFECTLY
||| > fits
||| > | >> to my Laptop.' He has an excellent record in
the
| eBay
||| > site
||| > | >> as a good seller.
||| > | >>
||| > | >> However, since this is electrical, I started to
||| > concern
||| > | >> whether it's safe to buy from eBay site.
||| > | >>
||| > | >> My question is:
||| > | >> Is it OK to buy an Adapter for my HP Laptop from
a
||| > third-party?
||| > | >> Because, its maker, the HP is very expensive
while
| an
||| > eBay-seller is half
||| > | >> its price.
||| > | >>
||| > | >> Thanks for your 'honest' and 'candid' opinion on
| this
||| > regard.
||| > | >
||| > | > There are 3 things to worry about when purchasing
a
||| > replacement ac adapter
||| > | > for a laptop. The voltage, the amperage (more is
| ok)
||| > and the connector
||| > | > size. You can do some comparisons here:
||| > | > http://www.laptopacadapter.com/hp/ If the ac
| adapter
||| > fits the 3 criteria
||| > | > and the ebay seller has a good reputation then I
||| > wouldn't have any qualms
||| > | > about buying it.
||| > | >
||| > |
||| > |
||| >
||| >
|||
|||
|
|
 
Jim, note that this exercise is not relevant to Lithium-Ion batteries. See
this online book: http://www.buchmann.ca/Chap10-page6.asp

Way more than anyone needs to know about batteries. :-)

-John O


Batteries designed to be recharged need exercise, sort of
like the doctors who tell you to walk instead of taking the
elevator. The old rule for Nicad batteries was to run the
battery until it was discharged and then charge it or a
"memory effect" would happen and the battery would "assume"
that the small amount of charge was a full charge and then
the battery would only have the limited capacity of the
last partial charge.
Newer batteries are said to not have that problem.

Google for "rechargeable batteries cycles"


Rechargeable battery - Wikipedia, the free encyclopedia
Attempting to recharge non-rechargeable batteries may
lead to a battery explosion. ... Nickel cadmium battery:
This chemistry gives the longest cycle life ...
en.wikipedia.org/wiki/Rechargeable_battery - 37k -
Cached - Similar pages

Steve's Digicams - Rechargeable Battery Information
Cycle charges, discharges, and then recharges
rechargeable batteries without requiring several repeat
cycles. Restores rechargeable batteries to their ...
www.steves-digicams.com/nimh_batteries.html - 36k -
Cached - Similar pages

Digital Imaging Accessories Review: The Great Battery
Shootout
I've started doing a little battery life-cycle testing
in "deep ... Some cameras come with custom-designed
rechargeable LiIon battery packs in the box - If ...
www.imaging-resource.com/ACCS/BATTS/BATTS.HTM - 70k -
Dec 17, 2006 - Cached - Similar pages

eBay Guides - Rechargeable Battery Care and Maintenance
Guide
Here's a Summary of What You Need to Know About
Rechargeable Batteries Ni-Cad Battery. PRO: Steady Voltage
Throughout Discharge Cycle, Good Shelf Life ...
|
reviews.ebay.com/Rechargeable-Battery-Care-and-Maintenance-Guide_W0QQugidZ10000000001229809
- 35k - Cached - Similar pages
|
Apple - Batteries
A charge cycle means using all of the battery's power,
but that doesn't ... As with other rechargeable batteries,
you may eventually need to replace your ...
www.apple.com/batteries/ - 13k - Cached - Similar
pages

Rechargeable Batteries Alkaline Lithium NiMH Battery
Capacity improvement or Quick charging will always
decrease the number of cycles. Every rechargeable battery
cell available on the market above 2100 mAh ...
www.nimhbattery.com/rechargeable-batteries.php - 35k -
Cached - Similar pages

|| Hi Jim Macklin:
|| Thanks all the help. I truly appreciate your informative
response on
|| this regard.
||
|| As to the Laptop, I just purchased it a week ago, then
it's new.
||
|| One thing over which I concern is, ... since the day I
started to use
|| the Laptop, I mostly depend on an Adpator. I rarely use
'Battery,'
|| in fear that a life of Battery could shorten. However,
it sounds other way
|| around, ... 'shorten' its life if not use the Battery.
Should not depend on
|| ONLY an Adaptor, it that correct? Or, can I use an
Apator with taking-off
|| a Battery? This might be a bit 'silly question' to ask,
but, ...
||
|| Then, in my assumption, I should use both an Adaptor and
Battery
|| alternatively,
|| like a Battery when use it in the upstair and an Adaptor
when using in the
|| downstairs.
|| Normally, I use the Laptop for about two-hours' period
that might be a
|| problem?
||
|| Your opinion on this would be appreciated.
||
||
|| "Jim Macklin" <p51mustang[threeX12]@xxxhotmail.calm>
wrote in message
|| || > Depending on the type of battery, using the AC all the
time
|| > can over-charge the battery and shorten the life. It
|| > depends on whether the battery is old or new technology
and
|| > how the AC powers the computer. If the AC power can
run
|| > the computer without the battery installed or can be
|| > switched so the battery is not over-charged, it should
not
|| > hurt the battery.
|| >
|| > If the battery is not in the circuit as a "shock
absorber
|| > [capacitor]" the surges that come through the cheap
adapter
|| > can damage the computer.
|| >
|| > Request the full specs on the adapter for such details
as
|| > ripple, voltage, output, must be enough to run the
computer
|| > and charge the battery. Ask if the will warranty the
laptop
|| > , in writing,for damage caused by their adapter?
|| >
|| >
|| > || > | Hi:
|| > | Thanks for the response.
|| > |
|| > | This is to be 'spare,' because I have an adaptor
which
|| > came with the
|| > | Laptop. However, I want to use it both upstaire and
|| > downstaire
|| > | alternatively
|| > | when the family is not around. Keeping a 'spare'
adaptor
|| > is for the sake of
|| > | convenience, maily because I want to save battery as
much
|| > as possible, as
|| > | hearing that battery is awfully expensive.
|| > |
|| > | eBay seller sounds a good one, but because of
minimum
|| > 'electrical' stocks
|| > | in his seller-site, that concerns me, for just in
case,
|| > like not working
|| > | good and the like.
|| > |
|| > | Thanks for the site and your opinion. I really
appreciate
|| > it.
|| > |
|| > |
|| > | || > | > || > | >> Hi:
|| > | >> I need a spare adapter for my Laptop.
|| > | >>
|| > | >> I went to the eBay site whether it has an Adapter
I've
|| > been
|| > | >> looking for and found the similar one. I
contacted a
|| > seller
|| > | >> whether the Adapter listed can be used for my
Laptop.
|| > | >>
|| > | >> He promptly responsed by e-mail, ... 'it's
PERFECTLY
|| > fits
|| > | >> to my Laptop.' He has an excellent record in the
eBay
|| > site
|| > | >> as a good seller.
|| > | >>
|| > | >> However, since this is electrical, I started to
|| > concern
|| > | >> whether it's safe to buy from eBay site.
|| > | >>
|| > | >> My question is:
|| > | >> Is it OK to buy an Adapter for my HP Laptop from a
|| > third-party?
|| > | >> Because, its maker, the HP is very expensive while
an
|| > eBay-seller is half
|| > | >> its price.
|| > | >>
|| > | >> Thanks for your 'honest' and 'candid' opinion on
this
|| > regard.
|| > | >
|| > | > There are 3 things to worry about when purchasing a
|| > replacement ac adapter
|| > | > for a laptop. The voltage, the amperage (more is
ok)
|| > and the connector
|| > | > size. You can do some comparisons here:
|| > | > http://www.laptopacadapter.com/hp/ If the ac
adapter
|| > fits the 3 criteria
|| > | > and the ebay seller has a good reputation then I
|| > wouldn't have any qualms
|| > | > about buying it.
|| > | >
|| > |
|| > |
|| >
|| >
||
||
Click to expand...
 
Voltage must be the same, and the amperage (or wattage) must be the same,
*and can be higher*. Same applies to cell phone chargers, FWIW.

This is just like a desktop power supply...you can put a 400W unit into a
system that currently has a 300W supply. (no pun intended)

-John O
 
apologize if this posts twice...


Jim, note that battery exercise is not relevant to Lithium-Ion batteries.
See
this online book: http://www.buchmann.ca/Chap10-page6.asp

Way more than anyone needs to know about batteries. :-)

-John O



Jim Macklin said:
Batteries designed to be recharged need exercise, sort of
like the doctors who tell you to walk instead of taking the
elevator. The old rule for Nicad batteries was to run the
battery until it was discharged and then charge it or a
"memory effect" would happen and the battery would "assume"
that the small amount of charge was a full charge and then
the battery would only have the limited capacity of the
last partial charge.
Newer batteries are said to not have that problem.

Google for "rechargeable batteries cycles"


Rechargeable battery - Wikipedia, the free encyclopedia
Attempting to recharge non-rechargeable batteries may
lead to a battery explosion. ... Nickel cadmium battery:
This chemistry gives the longest cycle life ...
en.wikipedia.org/wiki/Rechargeable_battery - 37k -
Cached - Similar pages

Steve's Digicams - Rechargeable Battery Information
Cycle charges, discharges, and then recharges
rechargeable batteries without requiring several repeat
cycles. Restores rechargeable batteries to their ...
www.steves-digicams.com/nimh_batteries.html - 36k -
Cached - Similar pages

Digital Imaging Accessories Review: The Great Battery
Shootout
I've started doing a little battery life-cycle testing
in "deep ... Some cameras come with custom-designed
rechargeable LiIon battery packs in the box - If ...
www.imaging-resource.com/ACCS/BATTS/BATTS.HTM - 70k -
Dec 17, 2006 - Cached - Similar pages

eBay Guides - Rechargeable Battery Care and Maintenance
Guide
Here's a Summary of What You Need to Know About
Rechargeable Batteries Ni-Cad Battery. PRO: Steady Voltage
Throughout Discharge Cycle, Good Shelf Life ...
|
reviews.ebay.com/Rechargeable-Battery-Care-and-Maintenance-Guide_W0QQugidZ10000000001229809
- 35k - Cached - Similar pages
|
Apple - Batteries
A charge cycle means using all of the battery's power,
but that doesn't ... As with other rechargeable batteries,
you may eventually need to replace your ...
www.apple.com/batteries/ - 13k - Cached - Similar
pages

Rechargeable Batteries Alkaline Lithium NiMH Battery
Capacity improvement or Quick charging will always
decrease the number of cycles. Every rechargeable battery
cell available on the market above 2100 mAh ...
www.nimhbattery.com/rechargeable-batteries.php - 35k -
Cached - Similar pages

|| Hi Jim Macklin:
|| Thanks all the help. I truly appreciate your informative
response on
|| this regard.
||
|| As to the Laptop, I just purchased it a week ago, then
it's new.
||
|| One thing over which I concern is, ... since the day I
started to use
|| the Laptop, I mostly depend on an Adpator. I rarely use
'Battery,'
|| in fear that a life of Battery could shorten. However,
it sounds other way
|| around, ... 'shorten' its life if not use the Battery.
Should not depend on
|| ONLY an Adaptor, it that correct? Or, can I use an
Apator with taking-off
|| a Battery? This might be a bit 'silly question' to ask,
but, ...
||
|| Then, in my assumption, I should use both an Adaptor and
Battery
|| alternatively,
|| like a Battery when use it in the upstair and an Adaptor
when using in the
|| downstairs.
|| Normally, I use the Laptop for about two-hours' period
that might be a
|| problem?
||
|| Your opinion on this would be appreciated.
||
||
|| "Jim Macklin" <p51mustang[threeX12]@xxxhotmail.calm>
wrote in message
|| || > Depending on the type of battery, using the AC all the
time
|| > can over-charge the battery and shorten the life. It
|| > depends on whether the battery is old or new technology
and
|| > how the AC powers the computer. If the AC power can
run
|| > the computer without the battery installed or can be
|| > switched so the battery is not over-charged, it should
not
|| > hurt the battery.
|| >
|| > If the battery is not in the circuit as a "shock
absorber
|| > [capacitor]" the surges that come through the cheap
adapter
|| > can damage the computer.
|| >
|| > Request the full specs on the adapter for such details
as
|| > ripple, voltage, output, must be enough to run the
computer
|| > and charge the battery. Ask if the will warranty the
laptop
|| > , in writing,for damage caused by their adapter?
|| >
|| >
|| > || > | Hi:
|| > | Thanks for the response.
|| > |
|| > | This is to be 'spare,' because I have an adaptor
which
|| > came with the
|| > | Laptop. However, I want to use it both upstaire and
|| > downstaire
|| > | alternatively
|| > | when the family is not around. Keeping a 'spare'
adaptor
|| > is for the sake of
|| > | convenience, maily because I want to save battery as
much
|| > as possible, as
|| > | hearing that battery is awfully expensive.
|| > |
|| > | eBay seller sounds a good one, but because of
minimum
|| > 'electrical' stocks
|| > | in his seller-site, that concerns me, for just in
case,
|| > like not working
|| > | good and the like.
|| > |
|| > | Thanks for the site and your opinion. I really
appreciate
|| > it.
|| > |
|| > |
|| > | || > | > || > | >> Hi:
|| > | >> I need a spare adapter for my Laptop.
|| > | >>
|| > | >> I went to the eBay site whether it has an Adapter
I've
|| > been
|| > | >> looking for and found the similar one. I
contacted a
|| > seller
|| > | >> whether the Adapter listed can be used for my
Laptop.
|| > | >>
|| > | >> He promptly responsed by e-mail, ... 'it's
PERFECTLY
|| > fits
|| > | >> to my Laptop.' He has an excellent record in the
eBay
|| > site
|| > | >> as a good seller.
|| > | >>
|| > | >> However, since this is electrical, I started to
|| > concern
|| > | >> whether it's safe to buy from eBay site.
|| > | >>
|| > | >> My question is:
|| > | >> Is it OK to buy an Adapter for my HP Laptop from a
|| > third-party?
|| > | >> Because, its maker, the HP is very expensive while
an
|| > eBay-seller is half
|| > | >> its price.
|| > | >>
|| > | >> Thanks for your 'honest' and 'candid' opinion on
this
|| > regard.
|| > | >
|| > | > There are 3 things to worry about when purchasing a
|| > replacement ac adapter
|| > | > for a laptop. The voltage, the amperage (more is
ok)
|| > and the connector
|| > | > size. You can do some comparisons here:
|| > | > http://www.laptopacadapter.com/hp/ If the ac
adapter
|| > fits the 3 criteria
|| > | > and the ebay seller has a good reputation then I
|| > wouldn't have any qualms
|| > | > about buying it.
|| > | >
|| > |
|| > |
|| >
|| >
||
||
Click to expand...
 
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