[lincpimp]

So you run a 1520 on 4s? Must have some tall gearing to get any speed out of that setup... Amp draw must be a bit high too.

Go up to 6s and get the 5000mah hyperion lipos.

As far as good lipos go, the flightmax 40c 5000mah lipo form HC work just fine with my 1521 neu 1y in my lst.