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_paralyzed_ · 06.15.2012, 04:48 PM

It's simply an out of balance cell. When charging the charger charges all of the cells all of the time, and then stops charging and bleeds off voltage from the highest cells until they are all even.

You will see that the output is switching back and forth from 0v to full pack voltage during this process.

The "bad" or "low" cell just takes a while to reach the full 4.2v, and the "good" cells with low internal resistance easily reach 4.2v. It does take quite a bit of time for this cell balance dance to take place.

This is where a charger with individual cell charging shines and the rest fall short.

	(#9)
_paralyzed_ working on a brushless for my wheelchair..... Offline Posts: 4,890 Join Date: Mar 2007 Location: minnesnowta	06.15.2012, 04:48 PM It's simply an out of balance cell. When charging the charger charges all of the cells all of the time, and then stops charging and bleeds off voltage from the highest cells until they are all even. You will see that the output is switching back and forth from 0v to full pack voltage during this process. The "bad" or "low" cell just takes a while to reach the full 4.2v, and the "good" cells with low internal resistance easily reach 4.2v. It does take quite a bit of time for this cell balance dance to take place. This is where a charger with individual cell charging shines and the rest fall short. _______________________________________ It's "Dr. _paralyzed_" actually. Not like with a PhD, but Doctor like in Dr. Pepper.