BATTERY SPECIFICATIONS:12V.Capacity:4.2Ah/50.4WH
COMPATIBLE P/N:M3863A.
COMPATIBLE MODELS:Replacement laptop battery for FR2 Battery;M3860A M3861A M3840.
SAFETY FIRST:Built to the highest industry standards, our battery features advanced safety measures including Overcharge & Overdischarge Circuit Protection, Over-temperature Protection, and Short-circuit Protection, ensuring dependable use for your laptop
KingSener Tips:For the initial installation, please reinstall and check the interface fully connected, discharge the battery to 5%(not to 0%) and then charge to 95%, and cycle 3-4 times