4.5Kw Underslung Constant Voltage Regulated Cum Emergency Battery Charger4.5Kw Underslung Constant Voltage Regulated Cum Emergency Battery Charger,4.5Kw Underslung Constant Voltage Regulated Cum Emergency Battery Charger Suitable For Lhb Coaches As Per Rdsos Specification No. Rdso/Pe/Spec/Ac/0183 (Rev. 2 )-2018 Or Latest [ Warranty Period: 30 Months After The Date Of Delivery ] ]