Electric Bicycle Battery Capacity

On new or recent e bikes you invariably get some kind of lithium ion battery.

Electric bicycle battery capacity. It depends on the power of the battery typically 24 36 or 48v the power of the bike limited in the uk to 250w the bike s battery management system and the way you ride. What kinds of e bike batteries are there. Eric hicks watt hours is a way to measure the energy capacity of a battery pack so you know what to expect from your new e bike in terms of range performance. The largest electric bicycle company in the us rad power bikes currently uses 674wh batteries on all of its throttle enabled bikes.

To calculate the watt hours wh of a battery pack simply multiply the voltage by the amp hours ah of the pack. It s really important to choose the right electric bike battery nickel cadmium nicd electric bike batteries. We are considering a 15ah lead acid battery against a 9ah li ion battery here because the. The earliest e bikes featured very heavy lead acid batteries then came nickel cadmium and nickel metal hydride both of which were lighter and can still be found to retain a useful amount of capacity for shorter runs.

The size of the battery will determine how far you can go on a single charge and also how much power the motor has on tap to help you when you need it. We re even beginning to see high capacity electric bicycle. The joyisi 48 volt is a fantastic battery jam packed with impressive power and capacity. Weight for weight nickel cadmium nicd batteries have more capacity than lead acid battery and capacity is an important consideration on an electric bike.

A 36 volt 10 ah battery pack has 360 watt hours 36 x 10 360. I notice ebikes on line advertised saying they get about 30 miles range from such a battery that would be amazing why is my bike only doing 5 miles. Older second hand e bikes may have other chemistries. Removable batteries are fully integrated into the bike s frame and the battery capacity is measured in watt hour or wh.