i have two of the turnigy 2s lipos. i'm waiting for a lipo alarm from truerc (using them in an old emaxx with evx), but i will note they don't fit the old emaxx battery trays. i have to stand them up on their sides, and fit them in diagonally.... and i'll use extra strength velcro, lol.
before anyone says anything: i'm just using the original brushed motors, so speed and COG aren't a concern.