Multiple LEDs reveal charging in progress, battery degree, and when the unit is in float method. You will find there's swift-disconnect harness to switch amongst the involved ring terminals and alligator clips. It's also acquired an LED indicator that means that you can watch the power volume of your battery https://hukums.com/products/hukums-trolley-hydraulic-jack-3-ton-heavy-duty-1-year-warrenty