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Gryphon · January 18th, 2006, 13:11

Lithium cells are very dangerous to use in this application, especially those not designed for a high drain application like laptop batteries. Violent explosion and fire will result from overheating the battery. Ordinary lithium cells are also not rechargable.

High drain lithium polymer batteries are now available for hobby use. Capacities exceeding 4000 mAh and discharge rates of 15C sustained/20C burst can be had for relatively decent prices, although whether they'll fit into your AEG is questionable because the cells are prismatic. Voltage of each cell is 3.7V so your choices are pretty much limited to 7.4V and 11.1V. I'd stick with 7.4V because with that kind of discharge rate you'll get a good enough ROF without killing your gears.

A special LiPo charger will be necessary. NEVER, EVER charge a lithium battery with a NiCd or NiMH charger. See above for consequences. I just bought a Duratrax Intellipeak ICE charger which does Lion and LiPo batteries in addition to NiMH and NiCd. Pricey but worth it if you plan to experiment with multiple cell chemistries.

January 18th, 2006, 13:11	#8
Gryphon Trader rating Join Date: Mar 2005 Location: MB	Lithium cells are very dangerous to use in this application, especially those not designed for a high drain application like laptop batteries. Violent explosion and fire will result from overheating the battery. Ordinary lithium cells are also not rechargable. High drain lithium polymer batteries are now available for hobby use. Capacities exceeding 4000 mAh and discharge rates of 15C sustained/20C burst can be had for relatively decent prices, although whether they'll fit into your AEG is questionable because the cells are prismatic. Voltage of each cell is 3.7V so your choices are pretty much limited to 7.4V and 11.1V. I'd stick with 7.4V because with that kind of discharge rate you'll get a good enough ROF without killing your gears. A special LiPo charger will be necessary. NEVER, EVER charge a lithium battery with a NiCd or NiMH charger. See above for consequences. I just bought a Duratrax Intellipeak ICE charger which does Lion and LiPo batteries in addition to NiMH and NiCd. Pricey but worth it if you plan to experiment with multiple cell chemistries.