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PowerUp Advance GBA Rechargeable Battery Kit

Modmatic has just released a DIY rechargeable battery pack for GBA systems called the PowerUp Advance.  The kit comes in four combinations ranging from $20 to $33 (plus shipping), depending on accessories.  Unfortunately, no pre-assembles kits are available, only board + components that must be manually soldered together:  https://modmatic.io/products/powerup-advance?item=APU-001-FL The kit requires that you cut the […]