My car battery was so dead this morning the trunk wouldn't even open with the key fob. So I had to crawl into the trunk from the back seat to get the charger shown below. I hadn't done anything with it in the year or two since I bought it and first charged it. Attached it to my battery and the car started right up. I was surprised. Highly recommended.
@poemblaze the reason I love things working mechanical, things like trunk opening and window openers, shutter on the house ... (last summer there was a long blackout starting in the night, guess how many neighbours were sitting in the dark because the shutters were closed when it startet)