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Modmatic PowerUp Advance Pro is a rechargeable battery kit for the original Game Boy Advance – now featuring USB-C!

Available in two types, a fully soldered version, and a kit version for those who like a bit more of a DIY approach.


  • USB-C connector – boost your self-esteem by plugging it in the right way every time!
  • Upgraded 1000mAh battery provides 7‑9 hours of play time per charge*
  • Native GBA low-battery warning light compatibility (20‑40 min warning time)*
  • Play and charge at the same time
  • Detailed assembly instructions
  • Optional light pipe add-on, for charging status LEDs

Whats included:

  • Beautiful custom-designed circuit board
  • USB-C charger module
  • 1000mAh rechargeable lithium-ion battery
  • Adhesive mounting square
  • Board components (pre-soldered or loose, depending on version purchased)

* Tested with a standard game cartridge, AGS‑101 backlit screen mod, average volume, and a 1000mAh lithium-ion rechargeable battery. Your mileage may vary.


Click here for Assembly & Usage Guide (PDF)



  • Assembly requires minor trimming of your GBA shell’s battery compartment
  • Console, tools, and charging cable are not included


Outside the US?  Please click here to visit Modmatics site if you are in the US to purchase.


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