About SERNN Battery:

We are a professional laptop battery, laptop adapter and all kinds of chargers manufacture. Dedicated to producing high quality products. We have professional sales team. To each of our customers with high quality products. Wish you have a happy shopping experience and thank you for your trust!

Specifications:

Battery Type: Li-ion

Voltage: 11.1V

Capacity: 65Wh

Certificate: CE,RoHS,FCC

Condition: 100% New from Manufacturer, Grade A Cell

Compatible Part Number:

N3X1D

Compatible Laptop/Notebook Models:(Use “Ctrl” ”F” to find your laptop model)

Dell Latitude E6540 E6440 E5530 E5430 E6520 E6420 Series

Precision M2800 Series

Provide Services

24 x 7 Email Support (contact us with any questions or concerns – we are here to help! ).

laptop battery instruction:

1.Discharge the new battery use to 5%(not to 0%) and then charge to 95%, and cycle 3-4 times.

2.Do not disassemble, crush or puncture. Do not dispose of in fire or water.

3.If you remove battery for a long time, charge more than 80% at least one time within one months.

4.Don’t connect adapter for a long time while using the battery. It may damage the battery.

5.When using the battery, care should be taken to prevent exposure and moisture.