This charger is quite nice. Very versitle as it can chatge most batteries used today. From 18650 to AAAA you cant go wrong with this smart device. Intrigated circuitry determines which battery you are charging and the digital display is incredible in itself. Adjustable amp settings for slow or fast charging. Auto timimg stops when fully charged and displays the results of that charge from voltage to charge time which gives you an idea of how long you can expect the cycle to complete for future charges. Good charger and an excellent value. I'm glad I got this.