Compatible Part Numbers: 04NW9 / 312-1163 / 312-1242 / 312-1310 / 312-1311 / 451- 11947 / 4YRJH / 8858X / 8P3YX / 911MD / HCJWT KJ321 / M5Y0X / NHXVW/P8TC7 / P9TJ0 / R48V3 / PRRRF / RU485 / T54F3 / T54FJ / UJ499 / YKF0M / X57F1
Compatible with Laptop Models: Dell Latitude Series E6420 N-Series / E6420 ATG Series / E6520 N-Series / E6530 Series E5420 N-Series / E5520m Series / E5520 BRC 6 Series / E5520 N-Series / E5430 Series
NOTE: Please check your battery part number or laptop model to ensure you are getting the correct battery for your laptop!
For the new battery , we suggest that all of our customer should full charge it by AC power adapter ,because takes a long period, the capacity was strain out by inner PCB circuit, in order to protect your battery life,you can full charge to 100% and drain to 1% 2 times,then the capacity will recover.