Hello.
I have purchased a powerboost 1000c charger. At the first use, I plugged in a LI-IO battery (3.7V 6600mah, JA-18650) and the proper led lighted up.
Then I connected an USB charger and the board became very hot instantly, then stopped working, no voltage on VOUT pins. Leds went off.
I tried again connecting only the USB charger, without the battery, same thing, board becomes hot instantly.
When connecting only the battery no led is on (just some tiny flashes on the LOW led) and no power on VOUT pins.
Is the board broken, anything else I can do?