Thanks, the car would be left for about 10 weeks of so twice a year.So continuous periods. I can't use a trickle charger as the car would be outside.I have just cancelled an order for a new Lexus LBX after reading many reports of battery failure and the fact that it is a full strength hybrid not a mild hybrid like my wife's Fiat 500. Also continuous updates from.Lexus while the car is parked was causing massive battery loss. How about a solar charger for the new BMW Series 1 any thoughts ? Dennis
