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Garmin Li-ion Battery Pack for TT15 / TT10 / T5


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Code: 5920
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Use this as a replacement battery or as a spare for your Alpha TT 15 or TT 10 dog tracking and training collar, or Astro T5 tracking collar.

Kit Includes:

  • One rechargeable lithium-ion battery
  • Three battery-cover screws
  • One battery cover

  • Specifications:

    Rechargeable Li-ion
    Voltage: 3.7 VDC
    Amperage: 2800 mAh
    Watt Hours: 8.6

    If your system is less than 1 year old contact Garmin before ordering replacement batteries. 1-800-800-1020.

    Installation Instructions:

    Please read all steps before starting. Before you replace the battery, be sure to remove all dirt, water, and debris from the collar.

    Tools Needed: You will need a small Phillips screwdriver and possibly a small flat screwdriver to connect the connectors.

    1. Remove the six screws from the outer edges of the back plate. You should leave the two inner screws in place.

    2. Pry off the back plate.

    3. Disconnect the four-pin and five-pin connectors.

    4. Remove the three screws that secure the battery cover.

    5. Remove the battery cover and the battery. Remember the orientation of the battery. You must install the new battery the same way. After you remove the old battery, contact your local waste disposal department to properly recycle it.

    6. Install the new battery with the connector on the end nearest the Power Button.

    7. Replace the battery cover.

    8. Replace the three screws to secure the battery cover.

    9. Connect the five-pin and four-pin connectors. You may need to use a flat screwdriver to help secure the connectors.

    10. Press the Power Button to test the connections. When properly connected, a tone is emitted and the status LED blinks green. Turn the collar back off before proceeding.

    11. Make sure the gasket located inside the bottom cover is fully seated.

    12. Replace the back plate.

    13. Replace the six screws to secure the back plate. After you install the new battery, charge the collar completely.

    Country of Origin: Assembled in China from parts made in Japan.

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    CA Residents: WARNING: Cancer and Reproductive Harm -

    Customer Reviews

    4 Reviews
    100% (4)
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    100% Recommend this product (4 of 4 responses)
    By Rob L.
    Great replacement
    December 20, 2020
    My dogs collar has stopped holding a charge for the entire day. This could be risky as she spends a good bit of time outside, without supervision. The new battery didn’t show up as charging all of the way. Contacted the sellers and they were helpful. Said to update both the handheld unit and collar. I was apprehensive that this would solve my problem, but sure enough it did. If you can’t remember when you last updated, it’s probably a good idea to do so when you purchase this.
    • Solid replacement
    • A little expensive, but my pup is worth it.
    By Boatman
    Amelia Island, Florida
    Works GREAT
    November 27, 2020
    The Garmin Collar (T15) is again working.
    I am glad the problem was just the battery. The old battery lasted 4 1/2 years.
    Remember: Be very careful with the gasket, when you take the collar apart.
    For the unit to be waterproof, the gasket must go back in exactly as before.
    Warning: If you mess up the gasket. Water will get into the unit. You will then have to buy a new collar.
    I did not have a problem. My hunting buddy did. He bought a new collar (about $300).
    Garmin Alpha 100, and collars are the BEST!
    Thanks, Boatman
    • Direct replacement battery
    • None
    By Jill
    Replacement battery
    November 25, 2020
    Works perfect in Garmin collar
    By Holly S.
    Review for Garmin Li-ion Battery Pack for TT15 / TT10 / T5
    October 11, 2018

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