Wii Fit Power Up Charging Stand with Rechargeable Battery Pack (for Balance Board) for $14.99

Keep your Wii Fit Balance Board neatly stored and full of energy with the Power Up Charging Stand from Mad Catz. Simply remove the battery cover and batteries from your Balance Board and replace them with the included rechargeable battery pack for hours of continuous gameplay. Two bonus USB ports free up space on your Wii console and AC power means the stand can be placed wherever its most convenient for you.