Model: WY9DX
Battery Type: Li-ion
Voltage: 11.4V
Capacity: 42WH
Condition:Brand new

Compatible Part Numbers：
WY9DX RJ40G 01K2CF 075X16 0WK3F1 0M3KCN 005R42

Compatible Laptop Models(Use "Ctrl+F” to find your model quickly)
Dell Latitude 14 5420 series：
Dell Latitude 14 5420 CHKFM； Dell Latitude 14 5420 FDTCY；
Dell Latitude 14 5420 XPC5H.
Dell Latitude 15 5520 series：
Dell Latitude 15 5520 39V1H； Dell Latitude 15 5520 FPKNM.
Dell Precision 15 3560 series：
Dell Precision 15 3560 3H45Y；Dell Precision 15 3560 4MTF7；
Dell Precision 15 3560 758J7；Dell Precision 15 3560 7RV10；
Dell Precision 15 3560 F3T9T.
Dell P137G P137G001 ,Dell P104F P104F001 P104F002.

Attention:
The Dell laptop models on this product page are compatible with 2 battery models:
WY9DX (42Wh 3-Cell) , RJ40G(63Wh 4-Cell).
Please open the back cover of your laptop to check the original battery size and capacity before placing an order. Please scroll down to the list to purchase.

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.