Brompton Electric Battery

The Brompton Electric Battery is a spare battery for Brompton's electric folding bikes, designed to keep you riding when you need an extra charge. It holds a full charge and works as a backup power source, so you can swap it in when your main battery runs low during the day. If you're commuting across a city or making multiple trips, having a spare means you're not limited by range or forced to stop at a plug socket.

Built to Brompton's standards, the battery is straightforward to use and integrates with the existing electric folding bike system. It's black to match the Brompton aesthetic, and the steel-frame durability you get from the main bike extends to the reliability you'd expect from its components. For riders who depend on their electric Brompton for regular commuting or want the flexibility to ride further without planning charging stops, a spare battery removes one of the practical constraints of electric micro-mobility.