How to charge a dead nintendo switch
cava3395 June 3, 2017, 3:35pm #2. Yes the Powercore 20100 led lights will all turn solid for some time to show the battery pack is completely charged. After which they will turn off completely. So if you still have a flashing led the charger is still charging that battery pack. cava3395 June 3, 2017, 3:39pm #3. Try using a better wall adapter.