The energy stored is the fuel for the bike!

The performance of an electric bike is measured by its ability to climb hills and how far it will run on the flat at a constant speed. This depends on a light frame, low friction and a highly efficient electric motor but also on the energy stored in the battery.

Useful technical battery information:
In a battery of specified voltage V energy stored is measured in ampere hours (Ah). This measure indicates how many hours a battery can produce a fixed current - amps A.

Many electric bikes today use 24V batteries rather than the 12V familiar to us in car batteries. To produce the same power measured in watts, which is volts times amps (V x A) a higher voltage motor of the same power will need less current. A lower current allows the use of thinner lighter wires and a lighter motor to deliver the same power.

FreeGo bikes have been designed for the next performance step and are therefore supplied with 36V batteries. These have a capacity of either 10Ah for the lithium ion battery or 16Ah for the lighter lithium polymer battery (used in model helicopters). FreeGo bikes come with a 250W intelligent brushless electric motor. The combination of the high voltage 36V 16Ah battery gives the flagship FreeGo Eagle range the best performance of any electric bike in the world.

Batteries on the Hawk and Eagle ranges are interchangeable so you can use a 36v 10Ah or 36V 16Ah to meet your requirements. The long range 36V 16Ah battery can be fitted on any bike for an additional £200.

As a rough guide:
A FreeGo Hawk or Eagle bike fitted with a:
36V 10Ah battery will travel between 15 to 20 miles throttle only and 30 to 40 miles with pedal assist
36V 16Ah battery will travel between 15 to 20 miles throttle only and up to 60 miles with peddle assist.
These are guide figures and will vary according to the terrain and amount of peddle assist used.

Battery Guarantee:
All FreeGo batteries (10Ah &16Ah) are guaranteed for 2 years.