AP18E7M AP18E8M Battery for Acer Nitro 5 AN515-54 AN517-51 AN515-55 AN515-44 AN515-43 Nitro 7 AN715-51 Predator Helios 300 PH315-52 PH317-52 PH317-53,Triton 300 PT315-51 Aspire 7 A715-74G AN515-52