Battery pack for wii fit(W-055)

1.with large capacity rechargeable battery

2.2800mAh Rechargeable battery Pack , INPUT:5.0V,OUTPUT:4.8V.

3.It uses for Wii Balance Board Power Supply.

4,It can charged more than five houndred times.

5,It has a smart design,Can be regular serviced by fastening the balance Board battery   slot,  Moreover ,it can be charged and used at the same time.

6.it also can be charged through Computer or any USB connectors.