Laptop Battery for Dell Latitude E6430 E6420 E6440 E6520 E6530 E6540 E6120, 15R 5520, 17R 5720, Vostro 3460 3560 T54FJ M5Y0X 8858X Inspiron M521R N4420

Dell Laptop Battery for Latitude E5420, E5520, E6220, E6420, E6520, Inspiron 4R-4420, 14R-5420, 14R-5425, 14R-7420, 14R-SE-4420, Vostro 3460, 3560, 3360, Precision M2800 *Please double check your old battery against our pictures, mainly unique edges and connection points*   Compatible Laptop Brand DELL Condition Brand New Cell Number 6 Cells Capacity 4400 mAh Output Voltage 10.8V / 11.1V Colour Black Cell Technology Li-Ion Battery Warranty 1 Year from purchase Compatible Battery Part Number (Use Ctrl F to search) P8TC7 P9TJ0 R48V3 PRRRF RU485  T54F3 T54FJ UJ499 YKF0M X57F1 04NW9 312-1163  312-1242  312-1310  312-1311  451-11947 8858X  8P3YX  911MD HCJWT  KJ321  M5Y0X  NHXVW  4YRJH   Compatible Laptop Model (Use Ctrl F to search) DELL Audi A4 Series  DELL Audi A5 Series  DELL Audi S5 Series DELL Inspiron 14R Series Inspiron 14R-4420  Inspiron 14R-5420  Inspiron 14R-5425  Inspiron 14R-7420  Inspiron 14R-SE-4420  Inspiron 14R-SE-5420  Inspiron 14R-SE-7420  Inspiron 14R-SE  Inspiron 14R Turbo DELL Inspiron 15R Series  Inspiron 15R-4520 Inspiron 15R-5520  Inspiron 15R-5525  Inspiron 15R-7520  Inspiron 15R-SE-4520 Inspiron 15R-SE-5520  Inspiron 15R-SE-7520  Inspiron 15R-SE  Inspiron 15R Turbo DELL Inspiron 17R Series  Inspiron 17R-4720  Inspiron 17R-5720  Inspiron 17R-7720  Inspiron 17R-SE  Inspiron 17R-SE-4720  Inspiron 17R-SE-5720  Inspiron 17R-SE-7720  Inspiron 17R Turbo Inspiron 4420 Series  Inspiron 4520 Series  Inspiron 4720 Series  Inspiron 5420 Series  Inspiron 5425 Series  Inspiron 5520 Series  Inspiron 5525 Series  Inspiron 5720 Series  Inspiron 7420 Series  Inspiron 7520 Series  Inspiron 7720 Series  Inspiron M421R Series  Inspiron M521R Series  Inspiron N4420 Series  Inspiron N5420 Series Inspiron N5520 Series  Inspiron N5720 Series  Inspiron N7420 Series  Inspiron N7520 Series  Inspiron N7720 Series Vostro 3460 Series  Vostro 3560 Series  Latitude E5420 E5420 N-Series  E5430 E5520 E5520 BRC 6 E5520 N-Series E5520m E5530 E6420 E6420 N-Series E6430 E6430 ATG E6520 E6520 N-Series E6530   Proper Battery Usage For first time usage, please charge the battery for 3 to 4 hours before using the laptop - usually it requires 2 to 3 charge/ discharge cycles before the battery achieves maximum capacity. Best practice is to unplug the charger when the battery is full. And plug in charger when battery reaches 20% to 30%. Usage time depends on how you are using your laptop. eg screen brightness, number of applications running etc. Average time is around 2 to 3 hours of continuous usage. Careful not to short-circuit the battery by placing the terminals in contact with other metal objects.