Specification : Battery Type: CR17450SE-R (3V) with plug Battery voltage: 3V Capacity: 2500mah Battery properties: non-rechargeable lithium batteries Battery size: diameter 17MM, length: 45MM Applications: Alarm system, PLC memory backup power supply, CNC system, servo motors, machine tools, instruments, special electronic equipment, etc. Package Included: 6 pcs CR17450SE-R PLC Battery