I bought it to replace the original Lenovo battery of my Yoga c740 15IML which had completed more than 600 cycle counts and according to the windows battery report was down to 1/3 of the design capacity. Fitting this battery was very easy. Laptop works great, the use time has increased significantly. Running the windows battery report I get: Name L18M3PFA Manufacturer SMP Design capacity 60300mWh Full charge capacity 61370mWh So far I'm very happy. Let's see how it degrades with time compared to the original Lenovo.