Features:r Excellent part Compatible with replacing the broken and non-working CMOS battery Compatible with the MS621F MS621FE batteryr This CMOS battery is guaranteed to work.r The small amount of memory on a motherboard that stores the BIOS settings.r Compatible with resetting the BIOS settings to default levelsr No memory effect. Can be charged even if it's not empty yet.r High capacity batteryr The real timer battery CMOS BIOS backup battery.r Fixes the following error codes: System battery error / System CMOS checksum error / System timer error / Real-time clock errorr Compatible with:r Compatible with MS621Fr Compatible with MS621FEr r Specifications:r Battery chemistry: Lithiumr Nominal voltage: 3Vr Capacity: 5.5 mAh @ 15 µAr Termination style: Requires holdersr Standard charging current: 15 µAr Lead-free status: Lead-freer RoHS status: RoHS compliantr Diameter: 0.7 cm/0.28 inchr Quantity: 2 pcsr Note:r Please allow 1-3 mm error due to manual measurement. Please make sure you don't mind before biddingr Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!r r Package contents:r 2 pcs rechargeable batteries