From the background and responses to my other question I gather that 5 NiMH batteries can provide more than 4 A current, and that Alkaline or Manganese batteries cannot.
So, what about LiPO, LiFePO4, Li-Ion?
Also, how can I find this information? Have googled a bit and looked at several tables of battery data but not seen anything remotely resembling this max current.
Edit: am trying to understand the available choices for powering a bunch of servos in a robot.