The big issue with LiPOs is that they can be ruined by shorting them, from what I've heard if only for a moment, so the deal is as I see it is to make sure and only strip and solder (and promptly shrink wrap) one lead at a time.

Also, check out Post#7 in the below thread - it's the golden rules of soldering

http://www.rctech.net/forum/showthre...ghlight=solder