The video shows how to revive a battery that isn’t working anymore. Put it in the refrigerator for few hours and it may work again for few cycles.
Extend the Notebook Battery Life
Breathe New Life Into a Dead Notebook Battery
09 oct 2007
The actual life of a laptop battery will vary with computer usage habits. A dead laptop battery can take the juice right out of your productivity. Therefore this trick may extend the life of a notebook battery that isn't working for you.