Adorama has the Energizer UE20003PQ 20000mAh LCD Display Portable Power Bank as the Deal of the Day for $29.99 (Reg $39.99). I have a couple of these and they have never let me down.
Energizer Powerbank Key Features
- High Capacity
- Dual Outputs
- Power Delivery
- Fast Charging
- LCD Display
- PowerSafe Management
Energizer UE20003PQ 20000mAh LCD Display Portable Power Bank $29 (Reg $39)
Output
USB-A 5V/3A, 9V/2A, 12V/1.5A
USB-C PD: 5V/3A, 9V/2A, 12V/1.5A (18W MAX)
This is suitable for charging R5 (and I assume the other R cameras) only when it's OFF.
Remember that Canon mentioned 9V/3A for R5C. Well it has to be true for R5 too.
When I try to charge R5 with a USB Type-C PD powerbank that has 18W as output the camera charges only when it's OFF.
When I try to charge it with a 60W or a 45W powerbank (USB Type-C PD of course) then it charges while ON.
I verified from the specs of my 45W powerbank that it provides 9V/3A.