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This is a 12-pack of genuine B3V1A lithium batteries made for High Tech Pet MS-4 and MS-5 digital ultrasonic collars. Each cell is keyed so it cannot be installed the wrong way and damage the collar. High Tech Pet says one battery runs a collar for about three months, and the cells keep for years on the shelf. It suits owners of MS-4 or MS-5 collars who want a year or more of replacements on hand. The main trade-off is that these fit only those two collar models, so they are no use with other brands or older High Tech Pet collars.
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Lowest price we've seen: $19.85 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
Buyers rate the pack highly and mainly value getting the correct genuine battery in one order. Several mention the keyed fit that stops a wrong-way install.
This is a 12-pack of Model B3V1A lithium batteries for the MS-4 and MS-5 Digital Ultrasonic Pet Collars. The batteries are required for all of the new High Tech Pet MS-4 and MS-5 collars. Only the B3V1A battery should be used in these collars.
The battery is designed to prevent damage if it is accidentally installed incorrectly. It was designed by the developers of the original Fully Automatic Power Pet Doors.
One battery typically powers an MS-4 or MS-5 collar for 3 months. The battery has a shelf life of years.
