Ersatzbatterie (Cruisers, Folding Cargo, Flex)

Bought this as a backup for my Cruiser and it's been a lifesaver on longer weekend rides. Swapping it in takes seconds, and now I can double my distance without worrying about turning back early.

Swapping in this spare on my Folding Cargo takes seconds, and now I can do two errands back to back without hunting for an outlet. Only gripe is the price—wish it came with its own charger instead of sharing the one I already have.

The spare battery clicks in and out of the frame easily, which is exactly what I needed for swapping mid-ride on my folding model. It holds a charge well enough to extend a long outing, though I wish the indicator light showed more than just three levels.