The information in this article can help you when the internal battery for Game & Watch: Super Mario Bros. does not seem to take a charge.
Game & Watch: Super Mario Bros. can be charged with the following method:
If you would like to use the included USB charging cable (model No. HAC-010) with a standard household charging block, please use a USB-compatible AC adapter.
Note: While some USB-compatible devices may be able to supply power to Game & Watch: Super Mario Bros., Nintendo cannot recommend any particular device. Please make sure to follow the instructions of any third-party device.
When fully charged, Game & Watch: Super Mario Bros. can provide approximately 8 hours of play time. However, this may vary depending on play style, brightness, and volume levels.
What to do
Connect the included USB charging cable to the USB-C connector on the right side of the device, then to then to a USB-compatible AC adapter (sold separately).
Connect the USB-compatible AC adapter to a wall outlet.
When you first connect the device to charge, the battery level and charging icon will be momentarily displayed on the top right corner of the screen.
You can also view the battery level and charging icon by pressing the PAUSE/SET Button while in game or clock mode.
Is the charging icon displayed when the device is first connected, or when the PAUSE/SET Button is pressed?
Allow the device to charge.
Test the charging cable and USB AC adapter with a compatible device, such as a Pro Controller or other accessory.
Situation not resolved
If another device is able to charge correctly, but not Game & Watch: Super Mario Bros., then the Game & Watch: Super Mario Bros. will need to be repaired. Please contact us for support.