Could keep a portable charger like this1 in the car, can start the car from it, as well as powering other devices. Been thinking of getting a power booster phone charger type thing anyway.
💬 Cool link from a friend they have one at Toolstation
Paul Clarke's blog - I live in Hythe near Folkestone. Wed to Clare + father to two, I'm a full-stack web developr, and I do js / Node, some ruby, other languages ect ect. I like pubbing, parkrun, eating, home automation and other diy stuff, history, tree stuff, Television, squirrels, pirates, lego, + TIME TRAVEL.