Welcome to OUWEE
OUWEE are mainly sold adapter, laptop and Tablet battery, power bank , etc.
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.

1.Battery Type: Rechargeable Li-ion Battery
2.Model: L20M4P75
3.Voltage: 15.52V
4.Capatity: 90.1Wh 5805mAh
5.Connector: Please refer to the picture and check it.
6.Certificate: CE,RoHS,FCC，100% New from Manufacturer, Grade A Cell
7.Worry-Free Warranty:
At OUWEE, we believe in our battery. That's why we back them all with an 12-month warranty and provide friendly customer service, easy-to-reach support.

8.Replacement for Part Number:
L20M4P75 SB11B79215 5B11B79217 L20D4P75 SB11B79216 5B11B79218

9.Compatible Models (use "Ctrl+F to find your model quickly")
Fit for Lenovo ThinkPad X1 Extreme 4th 5th Gen Series
Fit for Lenovo ThinkPad P1 4th 5th Gen Series

Not all models are listed,please check the part number of your original battery.

10.Package included:
1X L20M4P75 Battery.

11.For Optimal Use battery:
①Discharge the new battery to 5% (not 0%), then charge and cycle 3-4 times to wake up the new battery.
②The important point is to perform a full discharge charge every other month to extend battery life.
③Don't connect adapter for a long time while using the battery. It may damage the battery.
④Avoid artificial shocks, disassembly, crush or puncture. Do not dispose of in fire or water.
⑤Avoid using the battery in an environment where the temperature is too high or too low.