Extech dual port,7A100014, battery Replaces Mobile Computer Batteries  7A100014 FITS Following Devices Extech  ANDES 3, APEX 2, APEX 3, APEX2, APEX3, Dual Port, MP200, MP300, MP350, S1500, S1500T, S1500T-DT, S2500, S2500THS, S3750, S3750THS, S4500, S4500THS This battery is designed for the Tsc1 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-ion Battery Voltage: 7.4v Battery Capacity: 1800