Specifications: Battery type: Li-ion. Color: Black. Voltage: 11.55V. Capacity: 53Wh/4590mAh/3-Cell. ZTHY specializes in Laptop and camera Accessories including Laptop Batteries, Tablet batteries, Camera Batteries, Camcorder Batteries, and chargers Compatible Part Number: AP20CBL KT.0030B.002 31CP5/82/70 Compatible Models: Replacement for Acer Swift 3 SF314-43 Series,Acer Swift 3 SF314-511 Series,Acer Aspire 5 A515-45 A515-45G Series,Acer Aspire 7 A715-43G Series,Acer Aspire Vero AV15-51 Series,Acer TravelMate Spin B3 TMB311RNA-32,Acer TravelMate Spin B3 B311RNA-32 TMB311RNA-32 series,Acer TravelMate P2 214-41-G3 TMP214-41-G3 Series Security: All ZTHY products are Certified by CE, and UL for safety. Strict guidelines for compatibility, and standards compliance for environmental safety Note: If the new battery is not recognized during the initial installation, please reinstall and check if the interface is fully connected. Discharge the new battery to 10-20% (not 0%), then charge