Replacement laptop battery for Acer laptops & notebooks, models include Aspire E15 E5 units. This 2200 mAh Lithium-Ion battery is rated at 14.8V and has an average run time of Up to 5.0 Hours. This is an OEM replacement for Acer part numbers including AS16A5K, AS16A7K, AS16A8K. See the specs tab for detailed Acer laptop compatibility. The longevity rating is 300-500 Cycles and it comes with a 1 year warranty. Micro Center offers Acer laptop battery replacement and installation services to ensure your laptop will be back up and running quickly ask the store for details.