Laptop Battery

[Bill]

I have a Compaq Persario 1275 Laptop. Even though the battery shows
fully charged when you use self tester on battery it will not run laptop but
for a few minutes. I was told there is a way to jump the battery with more
voltage to revive them. Any truth in this and if so how?
Thanks
Bill H

 

[mike]

Bill wrote:

I have a Compaq Persario 1275 Laptop. Even though the battery shows
fully charged when you use self tester on battery it will not run laptop but
for a few minutes. I was told there is a way to jump the battery with more
voltage to revive them. Any truth in this and if so how?
Thanks
Bill H


Step 0: See if the vendor has a "battery calibration" proogram or

procedure. This doesn't revive the battery, it just puts the battery
gauge in sync with the battery status. Then quit while you're ahead.
If you MUST go on,
Step 1: Make sure your fire/life insurance is paid up.
Step 2: Kiss your wife goodbye and send her and the kids to
visit grandma.
Step 3: Do stupid things to your battery.
Step 4: If you survive, throw the battery away and get a new one.
Good luck,
mike
Search this topic with Google. You'll find as many
(confilicting)opinions as there are posters.
If you could determine which were good ideas, you wouldn't
need to ask the question in the first place.
Do NOT take any battery reviving advice you get here, not even from me.
mike

--
Return address is VALID.
Bunch of stuff For Sale and Wanted at the link below.
Toshiba & Compaq LiIon Batteries, Test Equipment
Honda CB-125S $800 in PDX
TEK Sampling Sweep Plugin and RM564
Tek 2465 $800, ham radio, 30pS pulser
Tektronix Concept Books, spot welding head...
http://www.geocities.com/SiliconValley/Monitor/4710/

 

[James Sweet]

"Bill" <hackw@bellsouth.net> wrote in message
news:jufNb.18771$eq.5477@bignews6.bellsouth.net...

I have a Compaq Persario 1275 Laptop. Even though the battery shows
fully charged when you use self tester on battery it will not run laptop
but
for a few minutes. I was told there is a way to jump the battery with more
voltage to revive them. Any truth in this and if so how?
Thanks
Bill H

What sort of battery does it use? If it's NiCd (very old laptop) then you
may be able to zap it to revive it, but you'd have to open it up to access
the cells individually. If it's NiMh there's not a lot you can do, ditto for
Li-Ion except those are well known to explode into flames if you put too
much charge current into them.

 

[Chuck]

If you are one of the lucky ones, whose laptop will accept 12v DC from an
external source, you can buy an external 12v powerpack for a fraction the
price of a new internal battery. Otherwise, tough luck, thats part of
laptop ownership: a new battery every two years until you throw it away or
make it a permanent desktop machine.
--Chuck

"Bill" <hackw@bellsouth.net> wrote in message
news:jufNb.18771$eq.5477@bignews6.bellsouth.net...

I have a Compaq Persario 1275 Laptop. Even though the battery shows
fully charged when you use self tester on battery it will not run laptop
but
for a few minutes. I was told there is a way to jump the battery with more
voltage to revive them. Any truth in this and if so how?
Thanks
Bill H

 

[Steve]

Bill,

Batteries Plus sells batteries for most antique laptops. They aren't the
best of batteries, but they are a LOT better than your aged junker.

Steve Richfield, N7VCG
======================
Bill wrote:

I have a Compaq Persario 1275 Laptop. Even though the battery shows
fully charged when you use self tester on battery it will not run laptop but
for a few minutes. I was told there is a way to jump the battery with more
voltage to revive them. Any truth in this and if so how?
Thanks
Bill H