This adapter is made for the GBAVMP series chargers and can be used to convert your charger to be able to charge multiple batteries in the same charger. One battery at a time though. You just remove this battery adapter plate and click in a new one for another li-ion rechargeable battery.
Guaranteed to fit Canon NB-4L and Canon NB-8L type batteries.
NOTE: This is not the battery plate for this battery. You will be shipped the correct plate.