About the Brompton Electric Replacement Battery 36V 8.55Ah (Original)

As a replacement part it must match the original in connector, size and rating, so confirm those details before ordering. An electric bike battery is a rechargeable pack of lithium-ion cells with a management circuit, storing the energy that the motor draws on during assisted riding. Closest alternatives by price: Bosch PowerTube 500 Vertical Battery ($1,149), Giant EnergyPak 500 Top Load Battery ($1,199) and Bosch PowerTube 500 Horizontal Battery (BBP3750) ($1,299).

An internal battery management system watches cell balance, temperature and current, and cuts power if the pack is over-stressed, overheated or discharged too far. Match the battery to the drive system and model year, since packs from different generations or makers often use incompatible connectors and communication protocols.

Listed as suiting 1 vehicle in the catalogue, including Brompton Electric C Line 6-Speed. Brompton has 3 products listed, from $1,143 to $7,290.

Stated in the model name

Battery (from name)36V 55Ah (about 1980Wh nominal)Named featuresReplacement part