GamePad battery degradation
The Wii U GamePad battery is now over ten years old on all units and battery degradation is effectively universal at this age. A GamePad that lasts significantly less than its original 3–5 hours, drains rapidly during play, no longer holds charge when stored, or causes the GamePad to shut off unexpectedly needs a battery replacement. The GamePad battery is a proprietary form factor — the original WUP-012 1500mAh cell is no longer manufactured, but compatible third-party cells are available. A higher-capacity replacement cell extending battery life beyond the original specification is also available.
