Replace Part Numbers: BTY-M492 3ICP6/71/74 MS-14C1 MS-14D MS-1551 MS-1562(12.2019) MS-16WK
100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. The actual operation time will depend on how much electricity is required by the device and how you use it
For first use, please discharge the battery to 5%(not to 0%) and then charge to 95%, and cycle 3-4 times.