Ask for Latest offer / Availability : https://bit.ly/3t3MvkV Input voltage: AC 110V-240V. Balance charge current: 850mA Display: Green Red LED. Max.charge current:3*800mA Connect the B3 Pro charger to power,charger works in good order whilenbsp;three power LEDs will turn from red to green. Please connect the battery pack to 3s balance port , while the three power LEDs will all turn into red and charging begins. Please note once the charging of one cell is done, the corresponding power LED for it will turn green. When the three power LEDs all turn green, the charging for 3S battery pack is finished. Net weigt: 89 g / 3.14 oz. Size: 90 x 57 x 35 mm / 3.54 x 2.24 x 1.38 inch. Product.