Battery type: Li-ion; Voltage: 15.4V; Capacity: 58.75Wh/57.48Wh; Cells: 4-cell Compatible Models: Acer Nitro 5 AN515-52 Series, Acer Nitro 5 AN515-54 Series, Acer Nitro 5 AN515-55 Series, Acer Nitro 5 AN515-43 Series, Acer Nitro 5 AN515-44 Series, Acer Nitro 5 AN515-45 Series, Acer Nitro 5 AN517-51 Series, Acer Nitro 5 AN517-52 Series, Acer Nitro 7 AN715-51 Series Compatible Models: Acer Aspire 7 A715-74 A715-74G Series, Acer Predator Triton 300 PT315-51 Series, Acer Predator Helios 300 PH315-52 PH315-53 PH317-53 Series, Acer ConceptD 3 Pro CN315-71P Series, Acer ConceptD 5 Pro CN515-71 CN515-71P Series Replace Part Numbers: AP18E7M AP18E8M 4ICP4/69/90 KT.00407.007 KT00407007 4ICP4/70/88 KT.0040G.013 KT0040G013 KT.00407.009 KT00407009 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