Battery Q's

[emaxxnitro]

ok my trusty turnigy 4s 5k just got puffy i cant complain i payed $40 for it and got 130 runs...? give or take 40 runs lol! an any way it was a great pack.
im not all into the big brand price tag. not all impressed with my neu 5000 4s 30c
its 6 months old and only takes 4200 back in. but its not puffy.
my setup is a mmm in a xt8 running a neu 1515 1y.
the question is if i up my voltage to 5 or 6s and gear to compensate will it even out? i would like to stay with cheapies without needing more ah than 5. the rpm's will be higher though. help!