laptop batteries

[redass1876]

is there a way to rebuild them after they are pretty worn out, and if so, does anyone know how?

 

[johnjkr1]

Nope...i've seen people say they can "revive" them, but I've never seen it work

 

[bsmithy]

have you tried the old full charge, full drain trick, as in 10 - 15 times?

 

[dkozloski]

There are several tricks to be tried if the batteries are Ni-Cads but if they are some other construction you can forget it. Ni-Cads can form internal crystals that short the battery that can be dislodged by throwing the individual cells at a hard surface. Another way to get rid of the shorts is to apply a high current from a variable DC supply across individual cells. Be careful of explosions, don't overdo it. If you know any RC modelers consult them as they are continually working on this problem.