The same freezer that holds your frozen pizzas and TV dinners can often bring seemingly-dead laptop batteries back to usable (though not quite like-new) condition.
1.Put the dead laptop battery in a sealed plastic bag.
2.Put the bagged battery in the freezer for about 12 hours.
3.Take the bag out of the freezer, and let the battery warm up to room temperature, drying it occasionally with a towel if it appears damp.
Don’t put your laptop battery into the freezer without securely bagging it.
4.Put the battery back into your laptop.
5.Charge the battery as much as possible, then leave the laptop on in order discharge it completely. Repeat this step 3-4 times.
6.Your formerly-dead battery should now be much more usable, if not totally restored
- Don’t discharge the battery completely. Do it until it reaches 3-5%.
- Check your local auction sites for a good used battery. If you look long enough, you might find one that doesn’t cost too much.
- Don’t put your laptop battery into the freezer without securely bagging it, as it may attract water and ice that will cause damage.
- You should only perform this on NiCD or NiMH batteries. If you try this on a lithium battery, it’ll make the battery life worse.
- The battery might explode if you leave it in the freezer for long periods of time meaning the acid from the battery will eat all the stuff in your freezer.