Convert Blackstar Fly 3 from 6 AA to Rechargeable Batteries Mr Cheaply On 10:57 AM I have a Blackstar Fly 3 that runs 6 AA batteries, that I'm pretty sure runs in series, and I want it to run on a rechargeable battery. Is there a correct way of converting it? via /r/DIY http://bit.ly/2P0OzHH