Supply Of 12 V , 7 Ah Sealed Maintenance Free ( Smf ) Lead Acid Rechargeable Battery12 V , 7 Ah Sealed Maintenance Free ( Smf ) Lead Acid Rechargeable Battery,12 V , 7 Ah Sealed Maintenance Free ( Smf ) Lead Acid Rechargeable Battery For Emergency Light Of Ac And Non-Ac Coaches As Per Rdso Specification No. Rdso/P E/Spec/Ac/0180-2016 ( Rev. 0 ). Accepted Make : M/S Exide, M/S Tafe (Amco), M/S Amar Raja, M/S Hbl Only. [ Warranty Period: 12 Months After The Date Of Delivery ] ]