What kind of battery capacity increase can I expect from the Ranger? July 14, 2021 15:17 the Ranger will double your bike's battery capacity from 20AH to 40AH. Related articles Help! I installed a Ranger mod and now my bike won't throttle! Will my battery gauge still be accurate after installing the Ranger? What kind of performance benefits will the Ranger give me? What if I disconnect the Ranger?