Vatrer e15-43.8V25a lifepo4 battery charger, which is designed for economic and high-quality charging of lithium batteries. The charger operates on a 100-240v ac input and follows a three-step charging program: constant current, constant voltage, and float charging. It offers protection against overload, over-voltage, overheating, short circuits, and reverse polarity connections. Specifications dc output: maximum voltage of 43.8V, current of 25a, and power of 1050w. Ac input: voltage range of 90-260vac, nominal voltage of 100-240vac, frequency of 50 60hz, and maximum current of 13a. Mechanical: dimensions are 28.1×14.5X8cm, weight is 7lbs 3.2Kg , and it features active cooling with a fan. Environmental: enclosure rating of ip66, humidity range of 5%-95%, operating temperature from -20 to 65 , and storage temperature from -40 to 85 . Led status indicators common indicator light status function item indicator light status 1 fully charged completed standby green light always on 2 charging green light continuously slow flashing . 3 Input voltage abnormal red light continuously flashing . 4 Output short circuit undervoltage red-green red-green continuously flashing . 5 Output reverse connection red-red-green, 2 red 1 green continuously flashing . 6 Charger body overheating red-red, 2 red continuously flashing . 7 Output overcurrent red-red-red, 3 red continuously flashing . 8 Output overvoltage red-red-red-red, 4 red continuously flashing . Safety notes do not leave the charge...