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 laptops original battery.1.Battery Type: Rechargeable Li-ion Battery2.Model: L18C4P903.Voltage: 15.36V4.Capatity: 46Wh 2985mAh5.Connector: Please refer to the picture and check it.6.Certificate: CE,RoHS,FCC?100% New from Manufacturer, Grade A Cell7.Worry-Free Warranty: At OUWEE, we believe in our battery. Thats why we back them all with an 12-month warranty and provide friendly customer service, easy-to-reach support.8.Replacement for Part Number: L18C4P90 SB10T83177 5B10W13934 02DL031 SB10T83120 02DL030 L18M4P90 SB10T83119 02DL032 L18D4P90 SB10T83121 5B10W13933 5B10W139359.Compatible Models (use Ctrl+F to find your model quickly) Lenovo ThinkPad L13 1st Gen Series Lenovo ThinkPad L13 2nd Gen Series Lenovo ThinkPad L13 Yoga 1st Gen Series Lenovo ThinkPad L13 Yoga 2nd Gen SeriesNot all models are listed,please check the part number of your original battery.10.Package included: 1X L18C4P90 Battery.11.For Optimal Use battery: ?Discharge the new battery to 5% (not 0%), then charge and cycle 3-4 times to wake up the new battery. ?The important point is to perform a full discharge charge every other month to extend battery life. ?Dont 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.