- Replacement pack of two batteries for High Tech Pet models MS-4 and MS-5 electronic collars.
- Specially designed to prevent damage if installed incorrectly by mistake.
- Typically powers a collar for as long as three months, and keeps working in rain and snow.
- Has a shelf life that last for years so you can count on reliable use.
- Powers the electronic collar to open the High Tech Pet automatic door for secure potty breaks.
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