KMD 3000mAh Rechargable Internal Battery Pack for Nintendo WiiUWhether you use it as spare or need it as a replacement, the KMD® rechargeable battery pack for the Wii U? Pro Controller will allow you to pay up to 5 hours wirelessly! Alternate between battery packs for an endless wireless gaming session.
Compatible with the Wii U Pro Controller
Play up to 5 hours on a full charge
Charges in approximately 4 hours
Use as a spare or replacement
3.7v / 3000 MaH