just took delivery of the backpack yesterday
have had it on charge for 24 hrs as per instructions
charger has 2 lights, says charge in red and stop in green
when i plugged it in to charge the light went straight to green
I've left it 24 hrs and unplugged it , no power !
plugged it back in, light still green switch it on and pump works and the charger light goes red !
Whats wrong with it ?
not impressed