SpecificationsBattery Voltage: 15.2V.
Capacity: 63Wh.
Cells: 4-Cells.
Battery life: Up to 500 recharge cycles over the life of the battery. ^^ Compatible Part Number35J09, RJ40G 01K2CF 075X16 WY9DX 0WK3F1 0M3KCN 005R42 ^^ Compatible the Modelsfor Dell Latitude 14 5420 CHKFM FDTCY XPC5H series; Dell Latitude 15 5520 39V1H FPKNM series; Dell Precision 15 3560 3H45Y 4MTF7 758J7 7RV10 F3T9T series. ^^ Quality Assurance100% new from manufacturer, every battery has passed factory testing, grade A cells ensure fast charges and low power consumption, built-in circuit protection ensures both safety and stability, guarantee your piece of mind while using the battery or storing it. ^^ Perfect Customer Service24 x 7 email support. Your satisfaction is extremely important to us. If you have any doubts, please click on seller store on right corner ask a question and contact us directly, professional and friendly customer service will be provied for you.