I've seen many questions about charging Ni-MH and Li-Ion batteries, but I recently bought a Li-Po battery pack, and I wondered how I should charge it... What voltage I should use, the maximum charge current... I don't want to ruin a perfectly good battery about the Li-Po pack: Voltage: 7,4V Capacity: 2,2Ah Maximum discharge current: 10C/22A (continuous), 15C/33A (peak) I think the cells can be charged separately, there is an extra 3-pin connector, and I can't think of any other use... but what voltages, and charge currents...
lithium Ion is actually easier to charge then ni-mh, it just is a lot more dangerous when done incorrectly it is typically done with a constant current-constant voltage charge. Constant current (.5C I believe, I would double check that, and all of this, I'm bringing it back from memory), and then once it reaches a certain voltage, it switches to constant voltage... once the current drops to a certain level, charging is complete.
that's lithium-ion.. is that any different from lithium-polymer? (and a constant-current of 0,5C is not much... would take 2 hours to charge completely then right?)
well a quick google and I found this... http://www.powerstream.com/li.htm and yes, ideally, at .5C it would take 2 hours to charge... but allowing for the constant voltage portion of the charge takes time, also.
http://www.sparkfun.com/commerce/product_info.php?products_id=674 this chip looked like it would be useful.
