Upgraded my stock 48v 11.6ah battery to the 52v 15AH battery from Calibike and I love it! noticeable power increase, and I get about 8-10 miles more on a charge. So far its been great.
RadRover with 52V 15AH Calibike Battery

Upgraded my stock 48v 11.6ah battery to the 52v 15AH battery from Calibike and I love it! noticeable power increase, and I get about 8-10 miles more on a charge. So far its been great.