Looking for "safe", long-running Lipos for my set-up

[zeropointbug]

Well if you want 'safe', then nothing can touch an A123 pack on that front, but there are trade offs, such as higher voltage drop under load compared to a standard lipo pack, and lower energy density.

A123:
-Intrinsically safe chemistry, very robust, physically, and electro-chemically
-~100Wh/kg energy density
-~2500Watts/kg
-EDIT: Also, they have a several 1000 cycle life, so they will outlast anything you use them in. You most likely will not use them that many times, simply because newer packs will come out before then, and the physical stress that is put forth from an R/C application such as these.

Newest Lipo packs (eg. - Hyperion G3's)
-Claim to be safer, more consistent, and last 4x longer than last gen. lipo's
-~140Wh/kg
-~4500+Watts/kg


If you want nothing but reliability, then A123 pack is your answer, if you want some more performance but still excellent quality, then Hyperion G3 lineup, Flightpower EON X30's, Neu packs, TP 40C packs, etc... although the HP G3's are the best value, and are up there with the TP 40C packs as far as performance goes, for almost half the cost.