Tender For supply of coin type lithium battery as per technical specification: panasonic model number:br16 32 or equivalent in other make. chemistry: lithium polycarbon monofluoride, nominal voltage: 3v, cap acity: 120mah, terminal type: standard, diameter: 16mm, dimention: 16 x 3.2mm. [ warranty perio d: 30 months after the date of delivery ]