What is the battery life of the SPOT Satellite GPS Messenger?

Check in Ok and Tracking can be used concurrently. The Check in Ok function will suspend the Tracking feature for the 20 minute Check In Ok message cycle.
To obtain reliable performance use only AAA Energizer Ultimate Lithium 8x batteries (L91). For optimal performance, please try and utilize SPOT in locations with a clear view of the sky with the logo side up.

Extreme heat/cold and trying to send messages indoors or under extreme canopies can drain on battery life. If the On/Off indicator light blinks red this is a warning your battery is about to die. Always carry extra batteries with you. Test your SPOT device before each trip by sending a Check-in/OK message.

Proper battery selection is critical for best performance.