This replacement battery for High Tech Pet models MS-4 and MS-5 electronic collars is designed specifically to prevent damage if accidentally installed incorrectly. This battery typically powers a collar for 3 months and has a shelf life of years. Not for use with models MS-2 or MS-2A collars. Pack of 2 batteries.
High Tech Pet Single Electronic Collar Battery for Model MS-4 and MS-5, 2-Count
