Around the class of two weeks, we drove the cars up and down country roads, circled parking plenty, and waited in fast-food drive-as a result of queues to run the batteries down to a 65% charge. There are hundreds, if not thousands, of low-cost USB auto chargers out there that https://flenzy.store/universal-3-in-1-diesel-parking-heater-with-lcd-control-for-all-vehicles/