How to Fix Rechargeable Batteries
There is no reason to throw away rechargeable batteries when they no longer hold a charge. They can be easily repaired at home to work like new. The repaired batteries will work on appliances, computers and cell phones. This article will instruct you on how to fix rechargeable batteries.
How to Fix Rechargeable Batteries
Use a battery tester or multimeter to test the rechargeable battery to ensure that there is no charge.
Use a battery tester or multimeter to test a fully charged rechargeable battery. The reading from the battery will help you determine the reading for the battery that will be repaired.
Put on gloves, goggles and a long sleeved shirt to protect your skin and eyes from burns.
Look for the positive end on the rechargeable battery, which is raised. The negative end on the battery will be flat. You can also look for the "+", which is positive and the "-", which is negative.
Attach the rechargeable battery to a 12-amp, 5-volt AC/DC charger. Hold the black clamp to the negative end of the battery. Lightly tap the red clamp on the positive end of the battery. You will notice a spark.
Hold the clamps to the battery for no more than two seconds at a time. Remove the clamps and check the reading of the battery on the battery tester or multimeter.
Continue holding the clamps to the rechargeable battery until the battery tester or multimeter has the same reading as the fully charged battery that was tested in Step 2.