From various other questions on this site, I have read that running 2 LiPo batteries in parallel is a bad idea, and the best way to fix this is to add diodes in front of them.
I am looking at an application where 2 batteries will be used in parallel and the current draw can be up to 50A. With a 1 volt diode drop (most higher current diodes are higher voltage drops) this would be dissipating 50W of power. This would take a sizable heat sink on the diode.
Are there any other ways to run batteries in parallel? I am looking for extended runtime by placing them in parallel, not more current.