... 100KW ( YK-CD122440 ) aaa rechargeable batteries, battery recharging , 12v battery and charger specification ItemPerformance ParameterAC/DC compatible inputAC220V±15 ... 29V (sealed battery); user should give clear indication of itFloating voltage13.5V/27VBattery voltage distinguishBuilt-in a 18V valve ... value, less than 18V valve value, it’s 12V battery, more than ...