supply of procurement of supply of 500 ah 24 v vrla battery, , supply of 500 ah 24 v vrla battery comprising of 12 nos. of 2 v modules along with inter-cell connectors general ly conforming to rdso spec. no rdso/pe/spec/ac/0009-2014(rev.2). the battery shall be suitable for 1600 hp engine starting meeting the following duty cycle: engine cranking profile for 1600 hp spic engine: maximum cranking current- 800 a battery vol tage shall not fall below 20 volts. cranking cycle consists of following sequence 1st start : 15 seconds on and 10 seconds off 2 nd start : 15 seconds on and 10 seconds off 3nd start : 15 seconds on and 10 seconds off 3 cranking cycles can be performe d with time interval of 2 minutes between the cycles. next set of cranking cycles can be followed after time interval of 10 minut es. the battery shall be supplied along with frame arrangement suitable for accommodating 500 ah 24 v vrla battery. the ove rall arrangement of the frame shall be as per drg.no icf/sk3-7-2-050.make : exide/amararaja/hbl. [ warranty period: 30 months after the date of delivery ] ]