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Old 12-04-2009, 01:10 AM   #6 (permalink)
Li-ion man
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Join Date: Dec 2009
Location: Vancouver
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Li-ion is very tempramental. First you have to get the specs. Not all Li-ion cells are the same. Max charge voltage can range from 3.6V to 4.2V. Be very careful with those cells. You will have to get a BMS that can monitor each string of parrallel cells individually. If you over charge a string ( too high voltage) it will heat up and may cause a fire that is very difficult to put out. Also monitor the tempertaure of the pack. If it goes above 50C cut the power.
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