@bucephylus I'd say it depends on the pedals you're running. I ran a 10000mAh power supply that looks very similar to what you posted for a good while. I used the 300mA port for an always on tube DI (Finally V2), along with about 200mA of other always on pedals (buffer, comp, drive) and I never had issues. Forgot to charge it between practice once and made it through a second practice, for a total about 8+ hours.
I only switched out to a DC7 b/c I'm running multiple power hungry pedals.
I only switched out to a DC7 b/c I'm running multiple power hungry pedals.