This charger is for Assist PLUS Batteries ONLY
Assist PLUS battery requires 28v charger.
Do not use other chargers with your Foil Drive Batteries, do not modify the battery or charger in any way.
Chargers now have a V2 Battery Adaptor Heat Shrunk on the connection end. If you have a V1 battery and require a new charger, this adaptor can simply be removed to reveal the V1 plug type.