I know there are some old threads about battery operation for the BB, but I thought I’d start a new one and will let you know my experience.
I want to run the Maestro from batteries and rather than open it up or cobble together battery packs I thought I’d try this as a solution…
I am going to try a 5v to 9v converter (https://core-electronics.com.au/usb-step-up-boost-converter-5v-to-9v-12v.html ) and use a battery power bank. ( https://www.batterysolutionsnetwork.com.au/redmax-solar-power-bank-20ah )
Just waiting on the polarity reversing tip to arrive as this device is centre +
There may even be smaller battery power banks that will give less time, but still enough for a four hour show. This is what I have at the mo so I will just use that and investigate smaller packs later 
