The battery’s presence means that when you fold-out and set-up the solar panel, and then attach ... it took six hours to put 80% charge into a 10,000mAh portable battery before dark clouds ...

On average we were able to charge the battery at about 10% per hour, which is pretty respectable for portable panels ... and solar also depends on the conditions. I try to charge up my power ...

There doesn’t have to be much more to setting up a simple solar ... the panel to a battery. Of course we would at least recommend the use of a battery management system or charge controller ...