Powerost E6420 Laptop Battery(58Wh) for Dell Inspiron 14R 15R 17R Latitude E6430 E6530 E6520 E5430 Precision M2800 Vostro 3460 M5Y0X T54FJ 7420 8858X 5520 5720 NHXVW T54F3 312-1324 Notebook Battery

Compatible With Part Numbers: 04NW9 05G67C 2N6MY 2P2MJ 3121163 3121164 3121165 3121242 3121310 3121311 3121324 3121325 3121439 3121440 3121441 3121442 3121443 3121444 3121445 3VJJC 45111693 45111694 45111695 45111696 45111947 45112048 4KFGD 5DN1K 71R31 8858X 8P3YX 911MD 96JC9 984V6 CRT6P DHT0W GCJ48 HCJWT HTX4D HWR7D JD0MX M1Y7N M5Y0X N3X1D NHXVW P8TC7 P9TJ0 PRRRF PRV1Y R48V3 RU485 T54F3 T54FJ UJ499 WT5WP X57F1 YC3PK YJ02W YKF0M Compatible With Laptop Models: Inspiron Series: 14R 4420 14R 5420 14R 5425 14R 7420 14R SE 4420 14R SE 5420 14R SE 7420 14R TURBO 15R 4520 15R 5520 15R 5525 15R 7520 15R SE 4520 15R SE 5520 15R SE 7520 15R TURBO 15R 5520 SPECIAL EDITION 15R N5520 15R N7520 17R 4720 17R 5720 17R 7720 17R SE 4720 17R SE 5720 17R SE 7720 17R TURBO 17R N5720 17R N7720 4420 4520 4720 5420 5425 5520 5525 5720 7420 7520 7720 M421R M521R N4420 N4520 N4720 N5420 N5520 N5720 N7420 N7520 N7720 Latitude Series: E5420 ATG E5420 NSeries E5420 E5420M E5430 E5520 BRC E5520 NSeries E5520 E5520M E5530 E6420 ATG E6420 XFR E6420 E6430 ATG E6430 E6440 E6520 E6530 E6540 Precision Series: M2800 Mobile WorkStation M2800 Vostro Series: 3460 3560 Suggestion 1.For use a new battery, youd better try a few cycles of discharging to 5Percent, then charging up to 95Percent. 2.Do not always run out of a battery to 0Percent, this would make it damage or usage life shortened. 3.Do charge a battery at least one time within two months. Before & After Service: You can post your question on product page Customer Q&A's or send an email(Go to powerost storefront and ask a question) if you have any questions about compatibility or other issue and we will respond asap. YEAR .