Annexure –I
TECHNICAL SPECIFICATION OF BATTERY 12V 120AH
1. Battery shall be flooded electrolyte Tubular Lead Acid, Low Maintenance type with low antimony lead alloy plates and ceramic vent plugs. The positive plate should contain low antimony casted at high pressure to ensure the void free and consistence grain orientation to protect Plate support from anodic corrosion. The batteries should conform to IS 1651 / IS 13369. A copy of the relevant test certificate for the battery should be furnished. The battery of reputed Indian make (Tested by Central Electrochemical research laboratory, CECRI, Tamilnadu or authorized test centre of MNRE for relevant IS 1651/IS 13369/IEC 61427 standard) shall only be used and the copy of detail test report should be enclosed as per standard parameters.
- Capacity of the battery shall not be less than12V, 120 Ah at C10 rate.
- DOD shall be 75% i.e., at least 75 % of the rated capacity of the battery should be between fully charged & load cut off conditions.
- Battery shall have a design life expectancy of minimum 1500 cycle at 80% DOD at 25°C with C10 discharge. Life cycle details received from original manufacturer should be attached.
- Battery terminal shall be provided with covers.
- Suitable carrying handle shall be provided.
- Bidder shall mention the design cycle life of batteries at 75%, 50% and 25% depth of discharge at ambient temperature up to 45 degree C.
- The batteries shall be designed for operating in ambient temperature of site upto 50 degree C.
- The self discharge of batteries shall be less than 3-4 % per month of rated capacity at 27 degree C.
- Batteries shall be provided with micro porous vent plugs & acid level indicator.
- Batteries shall be provided with physical parameters along with detail of length, width, height and weight with and without acid.