by Frank Moss

If you have a rechargeable battery that has been fully discharged and does not want to take a charge don’t give up on it! it just needs some science love. Here are a few things that you can do to rejuvenate the battery and get that charger to charge it.

Equilibrium Method

This is just like jump starting, only with the battery disconnected. The idea is that you take your dead battery, say an emergency exit light battery and a working battery like your extra vehicle battery and connect + -> + and – -> –¬†with jumper cables and wait. This will equalize the available energy between the two batteries.

Over Volt Method

This works best with Lead Acid batteries, but it requires a higher voltage charger than the battery is rated. Same method as above. This results in a rapid charge, so check it regularly. This method will descale the lead cores in the battery helping the plates react with the hydrochloric or sulfuric acid in the battery creating electricity.

Partial Charge to a Pack of Batteries

If you have a pack of connected batteries and they will not take a charge, pull half of them and apply the above methods to the batteries. Fully charge them then replace them into the pack. This will boost the dead cells using the Equilibrium Method.

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About The Author

Well traveled in Europe and North Africa, Frank Moss has lived in England, Germany and Italy thanks to sabbaticals taken by his father, an award winning physicist. Notable positions held during his almost 20 year IT career are founding engineer of IBM's SmartCloud, Cloud Architect for SPAWAR, and Cloud Architect for CenturyLink's FedRAMP Cloud Project. He specializes in architectural security compliance (secure by design) and holds a C|EH. When not working, Frank enjoys outdoor activities, shooting, camping and spending time with his wife and children. You can find Frank at one of his two sites: surviveseptember.com or nine13tech.net

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