best 4S battery

[buster1]

Which is the best performing 4S battery these days,
I have been using the Litestorm 3700 4S for a while and was thinking of checking out an FP battery or TP.
Thanks,
Jeff

[buster1]

I had another question for some of you power lepton experts,
I have some 4350 5S batts, which I think will fit in the frames with some minor mods.

Question - what is the best motor and pinion for either 5S 3700 or 4350 packs and has anyone used the 5S 4350MAh packs with Lepton?

Will my hyperion 3025-10 turn work with 5S or do I need another motor for sure. Also, what is the most efficient pinion to use.

Thanks - your help is appreciated,
Jeff H.

[3secondsToImpact]

I'm using the Polyrc 25c 3700 extreme Lipo's, very very powerful. They also have 30c Lipo's too! I purchased mine at cheapbatterypacks website. I do have FP NF 3700, TP 3850, hyperion 3700 litestorm and the PolyRC seem to have the most power.