Gameboy Advance USBC Battery

robot_retro USB-C Battery for Game Boy Advance (GBA)

Version 2 – Now Fits All Common Battery Covers

Designed to solve a major flaw in other GBA rechargeable battery mods—excessive heat during charging—this USB-C battery pack runs cool and efficient, while offering full charge-and-play functionality and extended battery life.

Key Specs

• Battery Capacity: 1700 mAh
• Runtime:
  • ~22 hours (stock GBA)
  • ~10 hours (IPS screen mod)
  • ~9.5–10 hours (fully modded GBA with IPS, amp, and flash cart)
• Charge Time: ~5 hours
• Charging Compatibility: USB-A to USB-C or USB-C to USB-C (PD supported)
• Battery Type: Negative polarity 10×30×48mm LiPo with JST-ZH connector
• Built-in Protections:
  • Low-voltage protection (cuts off at 3.3V)
  • Over-temperature protection

Key Features

• Charge While You Play
  
  • Safe, efficient charging via USB-C—even while the console is powered on.
• Low Battery Indicator
  
  • Activates the GBA’s red power LED when ~10–15 minutes of playtime remains.
• Cool & Efficient
  
  • Advanced switched regulator design generates very low heat—board remains cool to the touch during charging (see thermal photo comparison).
• Universal Compatibility (v2)
  
  • Revised USB-C port placement fits all common aftermarket battery covers, including:
    • RetroSix
    • FunnyPlaying
    • HISPEEDIDO
      (OEM shells will require trimming for flush USB-C fit.)
• Flush USB-C Fitment
  
  • USB-C port is aligned to sit flush with the battery cover.
    • Option 1: Drill a small hole in your existing battery cover
    • Option 2: Use a pre-cut aftermarket battery cover
• Versatile Charging Support
  
  • Works with both USB-A to USB-C and USB-C to USB-C cables (supports power delivery).

Installation Instructions

• (Optional) Remove the left-hand battery spring inside your GBA.
• Place the battery into the battery bay:
  • Insert the left side first
  • Press down the right side until the springs contact the GBA terminals
• Secure the battery with your preferred battery cover (custom cover recommended for flush USB-C access).