MODEL:MR-BAT6V1 2CR17335A WK17 VOLTAGE:6V CAPACITY:1800mAh Battery Nature: non-rechargeable DisposableBattery Package Included: 2 Pack 2CR17335A Battery Product parameters: MODEL: MR-BAT6V1 2CR17335A WK17 VOLTAGE: 6V CAPACITY: 1800mAh Battery Nature: non-rechargeable DisposableBattery Size: 17mm * 33.5 mm Application: Gas meter, sleep Bar, real-time clock, backup memory power, various measuring instruments, special electronic equipment, etc. Package Included: 2Pack 2CR17335A Battery