Designed exclusively for the Nomad E-bike, The Rear Rack Battery Kit designed exclusively for Onemile Nomad E-bike, allows you to install a second battery to your Nomad e-bike. This offers an additional 100km range. Battery Extender Rear Rack Kit Includes: - Rear Rack - 36V 10Ah Rack Battery -Charging time: 4 Hrs -Colour : Black Dual Battery Extender Rear Rack Kit Includes: - Rear Rack - 36V 10Ah Rack Battery*2 -Charging time: 4 Hrs*2 -Colour : Black Compatibility: -Suitable for Onemile Nomad series e-bikes