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GBA stock battery life VS. GBA with backlight battery mod. A handful of people have asked me how the battery life compares. Battery life is actually better when backlit. Video attached by
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Gameboy Advance 101, permanent grip w/ current gen rechargeable batteries, on its Lego charging dock. : r/Gameboy
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How to change GBA SP battery - lithium ion replacement - tools needs + how to identify dead battery - YouTube
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