Is it possible to charge my own Lithium-Ion Battery Bank from pay-to-use Electric Car charge stations?
I’m traveling in an (ICE-powered) caravan. I have a 0.7 kWh Lithium-Ion Battery Bank and a 100 W solar panel mounted to the roof of the vehicle. I don’t have space on the roof for another solar panel.
The battery bank has enough power to last me about 2-4 days (when also charging from the sun). The solar panel helps, but it inputs less power to the bank than I use each day. Therefore, I’m looking for a way to charge my caravan’s power wall battery bank about twice per week.
The power wall isn’t exactly portable; it’s very heavy, so I can’t bring it into a cafe. Hotels and campgrounds are too expensive.
I pass a lot of electric car charging stations, and I was wondering: can I connect it to a transformer that decreases the voltage and amps to my needs for charging my 0.7 kW power wall in my caravan?
My power wall can charge over AC 240V up to 10A. It can also charge over DC up to 25V, 12A.