Why are Inland replacement laptop batteries better? CAPACITY - Inland batteries use the same capacity battery cells as your original battery or better! Other vendors cut corners with lower capacity cells. QUALITY - Inland batteries use cells manufactured exclusively by the trusted brands Samsung, LG, and Sanyo. Other vendors use unbranded cells manufactured in China. SAFETY - Inland batteries are manufactured with a USA-made, Texas Instruments control chip. You are safer using an Inland replacement battery than one made with a control chip from an unknown source. LONGEVITY - The name-brand cells will last for double the length or better than knock-offs, exceeding 1000 charge cycles (compare to less than 500). WARRANTY - Inland batteries come with an unprecedented two-year warranty! We can offer this because our quality is far superior to the alternatives. This is a replacement laptop battery for Lenovo laptops & notebooks, models include various IdeaPad units. This 2800 mAh Lithium-Ion battery is rated at 14.4V*, yielding 40.3 Wh of power. That's 27% more capacity than competitors' 2200 mAh, 31.7 Wh batteries! This is an OEM replacement for Lenovo part numbers including L12L4A02, L12L4E01, L12M4A02, L12M4E01, 121500171, 121500172, 121500173, 121500174. See the specs tab for detailed Lenovo laptop compatibility. The longevity rating is 1000 cycles and it comes with a 2 year warranty. Micro Center offers laptop battery replacement and installation services to ensure your laptop will be back up and running quickly ask the store for details. *Also compatible with 14.8V and 14.6V applications.