Battery Type: Replacement Battery Cell Type: Li-ion Color: black Complete mah Our batteries are 100% WITH CE-/FCC-/RoHS-Certified for safety. We only uses high quality materials and battery cells to ensure true capacity and more recharge cycles. Expected operation time: 2-4 hours. This may vary, depending on device type and the way it is used. Contain with Durable cells; Low power consumption IC design. Overcharger and Discharger Circuit Protection. Equipped With Higher Quality Cells yet has Same Size & Shape as an OEM Battery. ①Discharge the new battery to 5% (not 0%), then charge and cycle 3-4 times to wake up the new battery. ②The important point is to perform a full discharge charge every other month to extend battery life. ③Don't connect adapter for a long time while using the battery. It may damage the battery. ④Avoid artificial shocks, disassembly, crush or puncture. Do not dispose of in fire or water. ⑤Avoid using the battery in an environment where the temperature is too high or too low.