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A genuine Garmin 3.7V lithium-ion replacement battery for select Garmin dog tracking and training devices, including the Astro 900, PRO 550 Plus, T5, TT 10 and TT 15. It is built to the same specification as the original cell, so it drops in without modification and keeps collars and handhelds running through long days in the field. The main draw over generic cells is exact fit and consistent runtime; the trade-off is that it only serves this family of Garmin dog gear. It suits hunters and trainers who depend on their tracking and e-collar systems and want a spare on hand.
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Owners of Garmin tracking and training gear describe this pack as a dependable replacement that restores original runtime. Many keep one as a spare so a collar never goes dead mid-hunt. Complaints center on the narrow compatibility list and the higher cost than generic cells.
This is a genuine Garmin replacement lithium-ion battery pack (part number 010-11828-03) for select Garmin dog tracking and training devices. It is a 3.7V pack.
It fits the Astro 900 and PRO 550 Plus remote controls, the T5 collar, and the TT 10 and TT 15 dog training collars. It does not fit the TT 15 mini or T 5 mini devices, so check your model's requirements before buying.
To install it, power the device off and open the battery compartment as shown in your user guide. Remove the old battery, noting its orientation, and insert the new pack so the connections are secure. Then power the device back on. Store spare packs in a cool, dry place out of direct sunlight, and check them for swelling or damage.
