Dtk Performance Laptop Battery for Dell Inspiron 1525 1526 1545 1546 1440 1750 Vostro 500 K450n [ 6-Cell 11.1v 4400mah / 48wh] Notebook PC Battery Battery type: Li-ion; Capacity: 4400mAh; Cells: 6-cell; Voltage: 11.1V. Compatible Models :Dell Inspiron 1526 / 1525 / 1545 / 1546 / 1750 / 1440 PP29L / PP41L Vostro 500. Compatible Part Numbers : 312-0625 312-0626 312-0633 312-0634 312-0763 312-0844 312-0940 451-10478 451-10533 451-10534 M911 M911G lBD1525 C601H D608H 0F965N 0F972N G555N GP952 GW240 0GW252 GW952 HP277 I15-157B J399N 0J410N J414N J415N LBD1525 LK-DL1525LH N586M P505M RN873 RU583 RU586 UK716 WK379 X284G X409G 0XR693 XR694 XR682 Y823G All DTK products are Certified by CE, FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Operation time for standard batteries(6-cell, 4400mah): Around 2 hours, the actual operation time will depend on how much electricity is required by the device and how you use it.24 x 7 email support, 12-month hassle-free warranty. Overheating protection Overcurrent protection Overvoltage protection Overcharge protection Over discharge protection Short circuit protection Excellent discharge curve and low resistance Excellent stability Long work life More safety CE FCC ROHS PSE Brand Name: DTK Capacity: 4400mAh/49Wh Cells QTY: 6 Voltage: 11.1V N.W.320g Battery Type: Li-ion ColorBlack Compatible Laptop Brand: Dell Package List: Laptop Battery + Instructions