Chosen Solution
Hello smart people - My son’s 3DS fails to turn on. Battery tests OK (4+ volts) When charger plugged in battery charges for a while then stops. When battery pulled out charge light only stays on for a few seconds then goes out. Completely disassembled unit to check the fuses on the main board and they test OK. I’m stumped. Anyone have suggestions? Thanks.
Maybe you need a new battery? It sounds like its fried. You should be able to get one off eBay or amazon!