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Battery ran out near end of ride, and the saved file only contains summary data.

The one area where I feel Garmin devices are superior to their competitors is that they never lose any data. I've had crashes during a ride, but when the device boots up again, the ride is still there, ready to be resumed.

Today I started a ride with battery somewhat low. Midway into the ride, the battery was at 15%, and I started logging on my ForeRunner too, and enabled battery saving on the Edge. The Edge still showed signs of life almost until the end, but when I stopped to save, it was dead. I tried to power it on without connecting it to power first (this may have been a mistake), and it worked, but it shut itself off again shortly after.

After charging it a little and then syncing, the ride is uploaded with all the correct summary data, but with no GPS track. When looking at the actual FIT file in the Activities folder, the file is only 1.4 KB in size. That makes it rather hopeless to try to recover anything. I couldn't find any other files anywhere that looked like they contained a temporary version of the activity.

I know now that I should have manually ended the ride before the battery ran out. But I'm still curious if anybody else has experienced this and can explain why the device didn't save all the data.

  • Hi, sorry to hear about your data loss. Yes if the only FIT file you could find was that small, then it seems that it's lost the data.

    I've had battery die a few times (poor planning on my part!) and it always seems to do it gracefully. Searching my activities I found 4 batt deaths (3 on Edge 530, 1 on Edge 130), and all 4 still saved all the data from before the batt died.

    I've also had a few freezes/lockups where the Edge appears to reboot (not batt related). In one of those cases it did lose the data from before the reboot, so the track jumps direct from the ride's start location to the reboot location, and then it has all the data after that point.

    So I guess it depends on how it died. It seems to have sufficient protection that data is normally retained and the activity can be ended (or resumed) once power is restored. But I've also seen reports such as yours that weren't so lucky and that protection somehow wasn't successful.

  • Thanks! Good to know it's not 100% reliable. If it happens to me again, I will make sure to charge the device a little before attempting to turn it on.