Is there a way to fix/charge a dead battery?

[Nina]

I have two compaq presario batteries, one shows at 6%, the other, as
uknown, that won't charge. Is there a way to fix these batteries so
they will charge again, before I go spend another 200 bucks?

Thanks

 

[Mike Kennedy]

probably not... You might try taking it down to your local battery shop and
try having it reconditioned or they should be able to rebuild it cheaper
than a new battery, but its still pretty expensive.

- Mike

 

[Mike Kennedy]

reconditioning is usually ~ $15
a rebuild they replace all of the cells and is usually a little cheaper than
buying a new battery, and is just as good.

 

[Nina]

Thanks, I found a third battery that is at 70% and the laptop still
wouldn't charge it. So, I think the problem is with the laptop, not
the batteries. I just get a blinking orange light (instead of the
solid orange when it's charging) and the batteries never charge at
all, even after hours of the lappy being plugged in.

So, I am back to the question of finding an external charger that's
not too expensive. Hope you have some ideas on that. thanks

 

[David Askari]

if its lithium-ion type which is controled with micro-processers
because they are dangerous and need very rigid charging cycle. They
are not to be fully discharged or sometimes the charger will never
kick in. I had a dead sony nicad camcorder battery (not lithium which
I would not mess with this way) that would not charge. so I manually
zapped it a few seconds with a car battery charger to get some volts
to readout. Then back to the sony charger and it charged up fine and
the camera liked it to!