Me and a couple of my buddies discovered today that if we cool our batteries while charging them we can instantly run after the charge. I was using NiCd's and they were using NiMh's. We put our batteries on a 12" house fan while charging them and they never got warm. We ran them immediately and saw no adverse affects. I'm assuming what we're doing is probably ideal, but I may be wrong. If this is the best thing to do let me know, if not, likewise. Also, I'm getting LiPo's in the next week or two, will this work for them?