Product Details

The 1.5V, B3V1A battery replacement is for the MS-4 and MS-5 ultrasonic pet door collars, which activate the opening of the High Tech Automatic Pet Door. These batteries last approximately 3 months, so it is recommended to purchase more than one replacement set.

Please note that this battery is for your High Tech Power pet door dog collar only. It cannot be used to power your electronic pet door. If you need to power your pet door, please view the High Tech Battery Charger Kit.