ZTHY Compatible 48wh 8858x Laptop Battery Replacement for Dell Latitude E5420 E5520 E6420 E6520 Inspiron 14R 15R 17R 4420 4520 4720 5420 5520 7420 7720 312-1163 HCJWT 11.1V 6-Cell Battery type: Li-ion. Color: Black. Voltage: 11.1V. Capacity: 48 Wh. 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Replace Part Number: 04NW9 2P2MJ 312-1163 312-1164 312-1242 312-1323 312-1324 312-1325 4YRJH 8858X 911MD CWVXW DHT0W HCJWT KJ321 M1Y7N NHXVW P8TC7 P9TJ0 PRRRF RU485 T54F3 UJ499 YKF0M X57F1 Compatible Models: Dell E5420 E5430 E5530 E6420 E6430 E6520 E6530 Inspiron 4420 5420 5425 7420 7520 4720 5720 7720 M421R M521R N4420 N4720 N5420 N5720 N7420 N7720 Series Security: All ZTHY products are Certified by CE, FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety. ZTHY Laptop Battery Return Policy: Rest assured with 30 days Refund and 12 months Replacement,also get our friendly customer service.