Power Backup

[MyTill]

Has anyone had experience using one of the portable power banks/chargers available out there (see link below for one) to charge a Rad battery on the road? At 1.5 lbs it would be easy to carry along, but if it takes a very long time to charge it wouldn't be very useful.

https://www.hsn.com/products/mophie-powerstation-go-max-power-bank-and-car-jump-star/9842547

[Altema]

This unit would not supply enough power. The Rad battery charger is 54.6 volts at 2 amps, which is 109.2 watts, and the AC power outlet is limited to 65 watts.