power bank

Hi Folks I'm keen to do some busking with a friend who uses a Street Cube EX. Trouble is that most battery powered bass amps won't really cut the mustard. This has got me thinking about using a portable power pack. The Jackery 240 is well reviewed but being an electrics noob I've no idea...

If this thread is incorrectly placed, my apologies go to the moderator who puts it where it belongs. After a few years of absentmindedly pondering the notion of a battery powered amp, I've finally figured out my route. I listened to and researched a bunch of portable amps and nothing really...