Package Included:
4PC* battery locating rail 
Material: plastic
Colour: Black

Removable battery locating rail which can adapt to your different thickness batteries.
The desktop charging base with the removable battery locating rail which can adapt to your standard (slim) batteries (such as nntn4851 nntn4970) or thick batteries (such as nntn4497).
Battery Locating Rail Adapter Installation Tips (Refer to Picture )
The battery locating rail is a removeable part which constitutes an adapter to accommodate standard and slimline batteries.
If the battery can not be charged, please pinch out the removable piece and turn around horizontal 180 degree to re-insert and re-charge.
Follow the instructions to adjust the charger:
1. Remove the battery locating rail by pinching inward both sides while pulling from the charger pocket.
2. Turn the battery locating rail around so the back faces the front. 3. Re-insert into the charger pocket.

Wpln4137 Wpln4137BR Rapid Single Unit Charger
Compatiable Battery Part Numbers:
NNTN4851A NNTN4970 NNTN4497 NNTN4496
Compatible with Motorola Radios:
CP040 CP140 CP150 CP160 CP180 CP200 CP200D CP250 CP380
PR400 DEP450 DP1400 EP450 EP450S
P3688 GP3688D GP3688 GP3188
If you don't sure whether it is right, please tell us your radio model and your battery model, then we will give you better advice.