Electric bike batteries

Electric bike battery play one of the most important role besides the bikes’ motor itself. In most cases, what people are looking the most in an e-bike is the range once can reach on a single ride.

Ah = Amp hour
Determines the capacity of the battery. More Ah = better battery life and range.

Average e-Bike battery range: 8-12ah
6.9V – 17Ah on a larger scale

V = Volt
Determines the force of the electric flow from the battery to the motor. More volts = more power to run from the battery to the. More voltage = more torque = not as economical.

Average e-Bike battery voltage: 36V – 48V
*30V to 52V on a larger scale

Wh = Watt hour
(Ah x V = Wh)

Battery capacity

Average range: 250Wh – 750Wh

There are three common mounting positions for e-bike batteries — on or under the rear rack, mounted on the frame, or integrated into the frame. Each position has its advantages and disadvantages in convenience, aesthetics, and handling.

Rear Rack Mounted

The rear rack position is the worst because of its impact on weight distribution. Batteries are heavy, usually weighing 5 to 10lbs, meaning the extra weight over or behind the rear axle can cause handling issues, especially when riding at high speeds. 

Frame Mounted

Mounting on the top tube is not aesthetic but allows for convenient access and is ideal for handling. In addition, the low, central positioning of the battery’s weight has a minimal impact on handling. This position is typical for ebikes and dual battery eBikes.

Frame-Integrated

This position is undoubtedly the most aesthetic. A small battery can be stylishly integrated into the frame, barely changing the geometry or size of the down tube. Again, the low, central positioning (typically in the downtube) is ideal, minimally impacting handling.