Many LEDs indicate charging in progress, battery amount, and when the device is in float mode. There is a quick-disconnect harness to change among the included ring terminals and alligator clips. Having said that, this charger is a tiny bit cheaper compared to GENIUS10, so in case you’re considering that https://hukums.com/products/groz-kitskth1-213ug-hand-socket-12-inch-drive-bi-hex-13-pieces-socket-set