Game Boy

The Joyplus Handy Power I is a quick-charge battery for the Game Boy, working much like a power bank. A 90-minute charge gives about 14 hours of play on the Game Boy, and a thermal sensor guards against overloading.

It was made for both the Game Boy and the Game Gear, on which it lasted around two hours. The later Handy Power II is also in the collection.

More from the Museum's Journal: New Arrival: The Joyplus Handy Power II.