which lipos- mmm combo

[himalaya]

A123s are great cells in abuse taking. but IMO its size is just stupid for RC use. I wish it was designed 23650 size instead of 26650.
Further more, the A123 is rated as 30C discharge capable, but this spec is only to describe how well it takes abuses, not how powerful. The voltage drop under load is much more significant compared to decent 25C LiPos. So it's not very likely to provide same output power as a good LiPo pack having similar capacity and steady-state unloaded voltage. You can tell this from its datasheet.