UGXKNAE Customer Service: Each purchase comes with a 12-month replacement, and 24/7 email support provided by our professional customer service team; Contact us by clicking " UGXKNAE " and selecting "Ask a Question" on the page Specifications: Battery Type: Li-ion; Voltage: 11.4 V; Capacity: 48 Wh 4200 mAh.Cells: 3 cells; Color: Black. Packages includes:1x AP18C4K Laptop Battery, 2 x Screwdrivers for easy installation,1x Instruction Replacement Part Number: AP18C4K, 3ICP5/81/68, KT.00304.012 Compatible Laptop Models: Replacement for Acer Spin 3 SP314-54N SP314-54N-58Q7 SP314-54N-77L5 SP314-54N-50W3 Series ,for Acer Aspire 5 A514-52 A514-52G A515-43 A515-43G A515-44 A515-44G A515-56 A515-56T and more Security Information: Each battery has undergone stringent safety testing, such as CE,UL certification, and It's made from premium materials with built-in circuit protection for safety and stability. Offering exceptional performance with fast charging and low pow