Type: Plug & Play Rechargeable Li-ion Battery
Model: KJ321
Voltage: 11.1V
Capatity: 97Wh 8550mAh
Warranty: 1 year warranty , 30 days' money back guarantee !

Replace Battery Part Number:
KJ321 X57F1 312-1242 UJ499 0UJ499

Compatible with: (use "ctrl+F" to find out your model quickly)
Dell Latitude E5420/E6220/E6320/E6420/E6420 ATG/E6520 Series
Dell XT3 Series

Note:
1.Before placing your order, we highly suggest you to open the back case of your latptop and check out the exact part number of your laptop's original battery.
2.Discharge the new battery use to 5%(not to 0%) and then charge to 95%, and cycle 3-4 times.
3.Do not disassemble, crush or puncture. Do not dispose of in fire or water.
4.If you remove battery for a long time, charge more than 80% at least one time within one months.
5.Don't connect adapter for a long time while using the battery. It may damage the battery.
6.When using the battery, care should be taken to prevent exposure and moisture.