Garmin TT15 Not Charging: How to Fix It?

By Naina Anuman 12 Min Read
Garmin TT15 Not Charging

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If you own a Garmin TT15 collar device for your dog, you may have encountered issues with the Garmin TT15 not charging correctly.

This issue can be frustrating, mainly when you rely on the collar for tracking and training your pet.

Nevertheless, you can take a few troubleshooting steps, such as changing the battery, replacing the device, etc., to fix the issue and get your device charging again.

This blog post will provide an overview of potential causes for your Garmin TT15 not charging and tips on getting the most out of the device to ensure it continues to work correctly.

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Let’s get started.

What is a Garmin TT15?

The Garmin TT15 is an advanced GPS-tracking device that keeps your dog safe and secure. This device uses a powerful GPS tracking system, which allows you to locate your dog in real time, 24/7.

It also features a built-in activity monitor to track your pup’s activity levels, health, and nutrition. The device also comes with a secure digital fence, so you can set boundaries for your pup and be notified when they leave the area.

The Garmin TT15 is a must-have device for any pet lover, giving you peace of mind and the assurance that your furry friend is safe and sound.

Why Doesn’t My Garmin TT15 Charge?

If your Garmin TT15 is not charging properly, there could be several possible causes.

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The most common cause is a faulty power adapter, in which case you should replace it with a new one.

Additionally, the charging port on the device may have become damaged or worn down with time. Check and inspect the port for any corrosion, dirt, or other debris that could prevent it from working properly.

Last but not least, the battery itself could be the issue. If the battery is dead or damaged, it must be replaced to get your device charged again.

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If none of these solutions helps to solve the issue, contact Garmin technical support for further assistance.

Troubleshooting Your Garmin TT15

If your Garmin TT15 isn’t charging, there are a few things you can do to try and get it back up and running. 

Here are some troubleshooting tips that may help you get your device powered up again: 

Check the USB port on your computer or wall charger: Make sure the USB port is completely clean and free of any dust or debris. If the port is dirty, use a dry cloth to remove any dirt or dust particles blocking the connection gently. 

Check the charging cable: Ensure that the charging wire is firmly attached to both your device and the power supply unit. If it appears loose, try reattaching it to both ends tightly. 

In addition, look for any damage to the wire itself. If there are any visible frays or tears in the wires, replace the cable with a new one. 

Use a different power source: Try connecting your device to another power source, such as a laptop computer or wall charger with a different USB port. This will assist in identifying whether the issue is with your existing power source or equipment.

Try resetting your device: Resetting your Garmin TT15 can sometimes resolve charging issues by restoring its factory settings. 

To do this, press and hold down the power button and the start/stop button simultaneously for about 10 seconds until you hear two short beeps indicating that it has been reset successfully.  

The Benefits of Owning a Garmin TT15 

The Garmin TT15 is an incredibly useful GPS-tracking device that offers a variety of features and benefits. 

Not only does it provide you with real-time tracking of your pet’s whereabouts, but it also helps you increase the accuracy of your training and performance. 

Here are some of its top benefits:

Enhanced Accuracy: The Garmin TT15 tracks your dog’s movements and progress more accurately, allowing you to improve your times and results. This can help you make informed decisions about the dog workouts and training sessions. 

Connectivity: The device connects to other compatible devices, allowing you to share and compare data with friends or teammates. You can even use it for competitions or races, ensuring you’re always on the same page as everyone else. 

Accessibility: The TT15 is designed to be user-friendly and easy to use, so anyone can use it without needing any technical knowledge. It’s also lightweight and compact, so it won’t take up much space when you’re not using it.

Durability: With its rugged design, this device is built to withstand harsh conditions and last for years. You won’t have to worry about replacing it anytime soon! 

SOS: With its built-in SOS button, the TT15 can also help your pets send out an emergency signal if they are ever in danger or lost in an unfamiliar place. 

Steps for Using a Garmin TT15 Dog Device

Set up the device: Before you can begin using the Garmin TT15, you’ll need to set it up. This involves recharging the gadget, downloading the required software, and creating a Bluetooth connection with your mobile device or tablet. Once the setup is complete, you’ll be ready to start using the device. 

Familiarize yourself with the controls: The Garmin TT15 has a variety of buttons and functions that allow you to control all aspects of its use. Take some time to familiarize yourself with how each button works and what each function does so that you can make the most out of your experience. 

Track your dog’s location: Attach the Garmin TT15 tracker to your dog’s collar and then use your smartphone or tablet to monitor their movements as they play and explore their environment. 


It is clear that the Garmin TT15 not charging issue is a common problem. Fortunately, there are some simple solutions that you can try to resolve this issue.

If you follow the steps outlined in this article, you should be able to resolve the problem and get your device up and running again. 

However, if the issue persists, it is recommended to contact Garmin’s customer service team for further assistance.

They are knowledgeable and experienced in dealing with these technical issues and will be able to assist you in getting your Garmin TT15 up and running again.


Why is my TT15 collar blinking red?

If your TT15 collar blinks red, you are out of range. This could be due to the distance between you and the collar or an obstruction blocking the signal, such as a tall building or tree.

Ensure that the collar has been adequately charged and that any object has not blocked the signal. If the collar blinks red, you may need to reset the device by powering it off and on.

If the issue persists, don’t hesitate to contact the manufacturer’s customer service department. They should be able to provide further help and support to resolve the issue.

How do you reset a TT15 collar?

Resetting a TT15 collar is a straightforward process. First, locate the orange reset button on the collar. The LED light on the collar will start to flash after 5 seconds of pushing and holding the reset button.

Once the LED light flashes, release the reset button and wait for the collar to reset. After resetting, the collar will beep three times to indicate the reset is complete.

When resetting the collar, keep it within a few feet of the Astro 220 or Alpha 100 handheld device. This ensures that the collar can connect to the handheld device after resetting.

How long does it take for a TT15 collar to charge?

Charging time for the TT15 collar varies based on the capacity of the battery and the voltage of the charger used. Generally, the charge time is between 6 to 8 hours with a standard 12-volt charger.

However, if a 24-volt charger is used, charging time is reduced to 3 to 4 hours. Therefore, using the specified charger for the collar is essential to ensure optimal charging and performance.

It is also important to remember that all batteries are affected by temperature, age, and usage and, therefore, will affect the charging time of the collar.

How long does a Garmin TT15 battery last?

The Garmin TT15 is equipped with a rechargeable lithium-ion battery. Battery life can vary depending on how the device is used, but generally, a fully-charged TT15 battery can last up to 20 hours.

To extend the battery life, users are encouraged to turn off the GPS when not in use and reduce the frequency of mapping updates.

How do you change the battery in a TT15?

To change the battery in a TT15, remove the three screws on the back.

The collar’s top and bottom should be carefully separated, then left aside.

Lift the old battery and replace it with a new one, aligning the battery terminals with the matching terminals inside the device.

Secure the new battery with the three screws and reassemble the top and bottom portions of the collar.

Press the power button to ensure the new battery supplies power to the gadget.

Finally, test the machine to make sure it is operating correctly.

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Dr. Naina is a highly experienced animal behaviorist with over 10 years of experience in dog training and behavior modification. Dr. Naina holds a Bachelor of Science in Animal Behavior, where they studied various domesticated animals' cognitive and social behavior. They continued their education and received a Master of Science in Veterinary Medicine, which included coursework in canine anatomy and physiology, as well as extensive training in positive reinforcement training techniques. As a certified professional dog trainer and behavior consultant, Dr. Naina has worked with a wide variety of dog breeds, from puppies to adult dogs, and has successfully addressed behavioral issues such as aggression, fear, and separation anxiety. Their deep knowledge of canine behavior and passion for animal welfare has led them to develop a keen eye for identifying the most effective and humane training tools, including dog collars. In their work, Dr. Naina always emphasizes the importance of expertise, authority, and trustworthiness (E-A-T), recognizing that the well-being of dogs is of the utmost importance. They take a thoughtful, evidence-based approach to recommend dog collars, always considering the unique needs and personality of each individual dog, as well as the preferences and goals of their human guardians. Their dedication to their work has earned them a reputation as a respected and trusted authority in the field of animal behavior.