12 V, 7 Ah Sealed Maintenance Free Lead [12 V, 7 Ah Sealed Maintenance Free Lead Acid Battery For Emergency Lights Of Ac And Non- Ac Coaches. The Battery Should Be Fit In The Rdso Drawing No. Rdso/ Pe/Sk/Tl/0180 - 2016 (Rev.0) Of Sheet 1 & 2. The Make Of The Battery Be M/S. Exide / Tafe (Amco)/ Amara Raja/ Hbl As Per Rdso Specification No. Rdso /Pe / Spec/ Ac/ 0180-2016 (Rev.0) Note : The Battery Should Not Be Older Than Six Month From Manufacturing Date At Time Of Supply.]