I tested:
2x Zoom MS100BT (500 mAh Max each)
RC-3 (70 mAh Max)
Harley Benton DI pre amp 110 mAh)
Relay G10 via USB
All connected at the same time.
I could get about 4h from the HB power bank.
Now here comes the cool part: I have an extra RavPower power bank with 10.000 mA capacity that I connected while the Harley benton power bank was in use and the extra power bank was actually charging up the harley benton unit. No overheat, no worrying temperature noted at all.
I'm gonna run another endurance test with both power banks fully charged and see how long all the gear stays up. If I can get 7 or 8 hours I'm set. If not, I really don't mind getting an extra HB power bank.
I also tried the HB power bank with the Boss RC-3 for 6h and the power bank had the exact same power before all those hours working.
Points in favor:
- Ease of use, problem free
- Can be charged while providing power (this is a big plus, you can just daisy chain to an extra power bank)
- No shenanigans, no temperature issues. Just works.
- Sound signal was perfectly clean.
- Slim form factor, you can slide it under your pedalboard.
- Extra torch light is a nice touch. Also the way to turn it on.