Welcome to TsuLin
Before placing your order, we highly suggest you to open the back case of your laptop and check out the exact part number of your laptop's original battery.

1.Battery Type: Rechargeable Li-ion Battery
2.Model: AA-PBTN4LR
3.Voltage: 15.4V
4.Capatity:54Wh
5.Connector: Please refer to the picture and check it.
6.Certificate: CE,RoHS,FCC, 100% New from Manufacturer, Grade-A Cell.
All TsuLin products are Certified by CE, FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety.
7.Worry-Free Warranty:
At TsuLin, we believe in our battery. That's why we back them all with a 12-month warranty and provide friendly customer service, easy-to-reach support.

8.Replacement for Part Number:
AA-PBTN4LR BA43-00386A AA-PBTN4LR-05.

9.Compatible Models (use "Ctrl+F to find your model quickly")
for Samsung Notebook 9 Pro NP940X3M （NP940X3M-K01US, NP940X3M-K02US, NP940X3M-K03US）Series, for Samsung Notebook 9 Pro NP940X5M （NP940X5M-X01US, NP940X5M-X02US, NP940X5M-X03US）Series; for Samsung Notebook 9 Pro NP940X5N （NP940X5N-X01US, NP940X5N-X02US）Series

11.For Optimal Use battery:
Discharge the new battery to 5% (not 0%), then charge and cycle 3-4 times to get the new battery a full capacity.
The important point is to perform a full discharge charge every other month to extend battery life.
Don't connect adapter for a long time while using the battery. It may damage the battery.
Avoid artificial shocks, disassembly, crush or puncture. Do not dispose of in fire or water.
Avoid using the battery in an environment where the temperature is too high or too low.