Power specs:Battery type: Li-Polymer; Capacity: 65Wh; Voltage: 11.1V Compatibility:Dell Inspiron 14 14R Series 14-3421 14R-3437 14R-5421 14R-5437 for Dell Inspiron 15 15R Series 15-3521 15-3531 15-3537 15-3542 15R-5521 15R-5537 for Dell Inspiron 17 17R Series 17-3721 17-3737 17R-5721 17R-5737 M731R-5735 M531R-5535 Latitude E3440 E3540 Series Vostro 2421 2521 Replacement For: 0MF69 49VTP 68DTP 6KP1N 8TT5W FW1MN MK1R0 PVJ7J V8VNT X29KD YGMTN 24DRM 4DMNG 6HY59 6XH00 312-1390 312-13929K1VP G019Y MR90Y T1G4M VR7HM XCMRD 4WY7C 6K73M 8RT13 DJ9W6 G35K4 N121Y V1YJ7 W6XNM XRDW2 312-1387 312-1433312-1387 312-1433 312-1390 312-1392 451-12107 451-12108 100% New from Manufacturer, About 500 recharge cycles over the life of the battery. Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety SOLICE guarantee - your repeat business is important for us, so if you do not like our product or don't want It for any reason, we will happily accept the return and gi