Airis N509, T605 Extended battery replacement For the Airis Replaces Handheld Palm computer Batteries E3MIO2135211 CS-MIO168XL FITS Following PDA's Airis N509, T605 Extended This 3.7v battery is designed for the Airis with a capacity of 1800, it is manufactured by our ISO 9001 certified supplier to a very high standard. Please note some of our extended batteries may be supplied with a rear cover to facilitate the greater capacity which may hinder fitting in any holders you may have. As we supply a very large range of batteries we cannot always have stocks of the slower moving lines as batteries have a shelf life and we insist on quality control for our customers, which may mean slightly delayed shipment date, where this is necessary you will be advised by email. Battery Type: LI-PL Battery Voltage: 3.7V Battery Capacity: 1800