This is a rechargeable EXFO 10.8V 4000mah NM35S-38A Battery . High quality and long lifetime, this NM35S-38A battery lets you work seamlessly when you are on the move for business trips or vacations. All our Li-ion replacement batteries for EXFO NM35S-38A laptop have been tested and proven to match and/or exceed original battery performance and are 100% […]