MAHLE Smartbike Systems X20 External Range Extender Battery - 36V/173Wh

MAHLE Smartbike Systems External Range Extender Battery - 36V/173Wh. MAHLE X20 optional Range Extender Battery adds 173Wh to extend your ride from 50-70km (30-43miles) when needed.

Battery mounts in place of a water bottle when needed and its holder will double as a standard bottle cage when the battery is not needed

Lightweight at 1.1kg

Charges to 80% capacity in under an hour