WY9DX RJ40G 01K2CF 075X16 0WK3F1 0M3KCN 005R42 11.4V 42Wh Notebook Battery Compatible with Dell Latitude 5420 5520 Precision 15 3560 Series Laptop

Specifications:
Model Number: WY9DX
Condition: Brand New
Battery Type: Lithium Ion
Voltage: 11.4V
Capacity: 42Wh / 3500mAh
Compatible With Battery Part Number:
WY9DX RJ40G 01K2CF 075X16 0WK3F1 0M3KCN 005R42
Fit For Laptop Machine Model:
for Dell Latitude 14 5420 CHKFM FDTCY XPC5H series;
for Dell Latitude 15 5520 39V1H FPKNM series;
for Dell Precision 15 3560 3H45Y 4MTF7 758J7 7RV10 F3T9T series
Warranty: Rest assured with 30 days Refund, 18 months Replacement.
Note: Please check the part number of your own old battery before order,which is the correct way to find replacement battery,welcome to contact us if still have any questions.
Laptop Battery Manual
New battery: Discharge the new battery to 10% (not 0%), then charge it to 100%. Cycle 3-5 times to activate its maximum capacity before use.
Overuse: Do not run out of battery power to 0%, the lithium battery will turn on the charge protection so that it can not be recharged, which is the nature of lithium batteries.
Long-term storage: Charge it to around 50% when you store it long term. (Charge it once a month) Do not store at low power to prevent reduce the lifespan of a battery.
Adapter: Always use the proper ac adapter charger for your device.