RE: need advice on p40 setup
Wingspam,
I have 2 battery set ups. 1 is a 6s1p 5000mah battery, (a single 6cell, 5000mah brick), the other is a 6s2p, (2, 3cell 5000mah packs wired in series). I put ~ 60% charge back in, so, I'm being pretty conservative at 5 -7 mins. and could proably strech another min. or two. Several manufacturers make larger batteries, i.e. 6000mah and up, Max-Amps, Thunder Power and others. Good luck.
Rick