This is a rechargeable Smartbook 7.4V 5000mAh NV-4776127-2S Battery . High quality and long lifetime, this NV-4776127-2S battery lets you work seamlessly when you are on the move for business trips or vacations. All our Li-ion replacement batteries for Smartbook NV-4776127-2S laptop have been tested and proven to match and/or exceed original battery performance and are 100% […]