E6440 T54FJ M5Y0X 8858X DTK Laptop Battery Replacement for DELL Latitude E642... DTK

E6440 T54FJ M5Y0X 8858X DTK Laptop Battery Replacement for DELL Latitude E6420 E6430 E6440 E6440 E6530 Vostro 3460 3560 Inspiron 5720 7520 NotebookBattery type: Li-ion; Capacity: 5200mAh; Cells: 6-cell; Voltage: 11.1V.Compatible Models: Dell Latitude E5420 / E5430 / E5520 / E5530 / E6420 / E6430 / E6520 / E6530 / / Inspiron 4420 / 5420 / 5425 / 4520 / 5520 / 5525 / 7420 / 7520 / 4720 / 5720 / M421R / M521R / N4420 / N4520 / N4720 / N5420 / N5720 / N7420 / / Vostro 3460 / 3560Compatible Part Numbers: T54FJ / 71R31 / M5Y0X / 8858X / T54F3 / UJ499 / YKF0M / PRRRF / P8TC7 / P15G / P14F001 / NHXVW / 8P3YX / DHT0W / 2P2MJ / 312-1324 / 312-1325 04NW9 2P2MJ DHT0W HCJWT KJ321 NHXVW P8TC7 PRRRF UJ499 YKF0M X57F1 8P3YX P15F P15G P16G 312-1242 312-1324 312-1325.Operation time for standard batteries(6-cell, 5200mah): Around 2 hours, the actual operation time will depend on how much electricity is required by the device and how you use it.All DTK batteries are UL/CE-/FCC-/RoHS certified for safety and packed with a variety of safety features, including short circuit, overheat, and overload protections.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 .