Replacement laptop battery for Lenovo laptops & notebooks, models include G460, G560, G570, B470, B570, V360, V370, V570, Z370, Z460, Z560, Z570. This 4,400 mAh Lithium-Ion battery is rated at 10.8V and has an average run time of Up to 5.0 Hours. This is an OEM replacement for Lenovo part numbers including 121001071, 121001091, 121001094, 57Y6454, 57Y6455, L08S6Y21. See the specs tab for detailed Lenovo laptop compatibility. The longevity rating is 300-500 Cycles and it comes with a 1 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.