Model: KC-20A 14.6v Size: 150×110×60mm Battery type: 12.8V lithium iron phosphate battery (3.2V 4S) Applicable battery voltage: 4S 14.4V-14.6V Applicable battery capacity: 20ah-100ah Working power supply: 100-240Vac, 50 ~ 60Hz Output voltage: 14.8V±0.2v Output current: 8A Charging method: constant current - constant voltage - trickle Charging efficiency: ≥85% (full load) Working temperature: -5℃~+40℃ Storage temperature: - 40℃~+70℃ AC power cord, DC connector can be customized.