The PowerPack is a third-party rechargeable battery solution designed for the original Nintendo Game Boy. The battery pack fits directly into the console’s battery compartment, replacing standard AA batteries and providing up to approximately 10 hours of gameplay on a single charge. 

The set includes a mains adaptor that can either recharge the battery pack or power the Game Boy directly from a wall outlet. Manufactured under the Gamester LMP brand, the PowerPack offered a reusable power alternative for players seeking a more economical option than disposable batteries.