I love this charger. It is small, very stylish design, made from strong metal sheets and Fully Automatic. All details are in high quality. 12 HIGH (8 A) option is a bit noisy, but 12V LOW (2 A) works just great. So I want to mention, did on old batteries 12 High Lights green indicator instantly after connection and 12 LOW charges very long, more than 24 hours just to reach 13.6 V, so my suggestion if you are working with old batteries, buy manual charger. And this charger is just perfect for newer batteries, Which silently have more than 50% of Their capacity.