My M2Pro came with a little L shaped usb adapter to allow the battery to be used as a battery bank, does anyone know if this is 2 way? IE; can I charge the M2Pro battery from a battery bank via this adapter.
Have you got a picture of the adapter .
Edit : I know the one your on about is pretty much the same as the Air 2/2 S as far as I’m aware I don’t believe you can & is only good for toping up your phone etc,
I’ve never found anything that says you can unless someone knows different id probably not try it.
1 Like
Yes I don’t want to plug it into a charger in case it shorts the battery, however it does have the word input on it. There’s no mention of using it in this way in the manual, I can find.
I have similar for the Air 2S and it is only to turn the batteries in to a power bank, not for charging the battery.
The input voltage is from the battery - 9 to 20 volts
The output is the USB standard of 5 volts
It wont take a 5 volt input and up it to the voltage required for the battery.
1 Like
Pity, it could be useful if it was 2 way.
Still useful during a power cut trust me 
4 Likes