I am new to the world of electric vehicles - just got a smart ED about 3 weeks ago. (Love the car by the way, but it's in the shop today to repair an oil leak at the right rear axle.) Before getting the car I was planning to install a 240V charging device in the garage to provide faster...

Whenever my Dad leaves the car parked for a while in the winter (like even a bit less than a month), the battery is dead. Was going to get a float charger, but realize the battery is under the carpet. He doesn't want wires hanging out. Was thinking of one of those battery tender things that...