User Replaceable Batteries; Replacing The Descent T1 Battery; Troubleshooting; My Device Is In The Wrong Language - Garmin DESCENT MK2I Owner's Manual

User Replaceable Batteries

See the Important Safety and Product Information guide in the product box for product warnings and other
important information.

Replacing the Descent T1 Battery

You should purchase a replacement battery only from a high-quality manufacturer and a reputable vendor.
Using a low quality battery could result in poor product performance and reduced battery life, especially at low
temperatures. Do not use rechargeable batteries. Rechargeable batteries may have a higher voltage
specification and can cause permanent damage to the device.
To replace the battery, you need a coin or flat screwdriver, a new 3 V CR123A lithium battery, and waterproof
silicone grease. You may also need a replacement battery cap accessory.
The transmitter is powered by a 3 V CR123A lithium battery. A battery is pre-installed at the factory. You must
carefully follow the battery replacement instructions to preserve the transmitter's waterproofing.
1 Insert a coin or flat screwdriver into the slot
2 Remove the battery cap and battery.
3 Insert the new battery in the transmitter, with the positive pole facing into the transmitter and the negative
pole facing the battery door.
4 Inspect both gaskets
If the gaskets appear worn or damaged, you can purchase a replacement battery cap kit, including a cap,
gaskets, and silicone grease. Go to the Descent T1 product page on
5 Apply a thin layer of waterproof silicone grease to both gaskets.
6 Replace the battery cap into the transmitter, and fully tighten it.

My device is in the wrong language

You can change the device language selection if you have accidently selected the wrong language on the
device.
1 Hold MENU.
2 Scroll down to the last item in the list, and press START.
3 Press START.
4 Select your language.

Is my smartphone compatible with my device?

The Descent Mk2i device is compatible with smartphones using Bluetooth technology.
Go to www.garmin.com/ble

Troubleshooting

, and rotate counter-clockwise to unscrew the battery cap.
to verify they are clean, undamaged, and fully seated in the grooves.
Troubleshooting
for compatibility information.
WARNING
NOTICE
garmin.com to purchase accessories.
131