LogTag Battery Low

How do I tell if my LogTag Battery is low? Is there a way of replacing it or charging it? What should I do if it does not work? Find out more here.

Locating Battery Status

If a Logger reports a battery as ‘OK’ when generating a report, there is typically enough operational life left to complete a trip before being completely exhausted.

If, however, a product shows ‘LOW’ when being configured or downloaded, it should not be used again, but discarded in accordance with local regulations.


I can't download my data?

If you are unable to extract your latest data from your LogTag, you will need to find your most recent log in your saved files.

Once you open your most recent file, you will find whether the Battery is low.

If your most recent file is a couple of months old it will be hard to determine whether the battery has been depleted over that span of time. If your LogTag is not flashing any lights and it has been used for more than 2 years, it is safe to assume it is the battery at fault.

Symptoms of a Low LogTag Battery

If you experience one of the following, this could be due to a low battery:

Important: These are not always battery related!

  • Downloading data isn’t possible
  • Software freezes during download
  • Strange light patterns. E.g. light does not always come back on.
  • Difference in temperature/humidity (See image on the right)

If you continue to use the Logger despite a low battery warning, there may not be enough power left to correctly record and store data, or to communicate with a PC.

Often this leads to data corruption and sometimes complete data loss.

Units with a non-replaceable battery

Some LogTag models have fixed or user-replaceable batteries.

If you have any of the loggers below – the battery is non-replaceable and will require you to replace the logger once it has depleted.

The battery is expected to last 2 years or more based on a sample rate of once every 5 minutes.

TRIX-16 or TREX-8



TRIL-8 or TREL-8

Our Recommendation

Go to our shop and replace your old logger with a new unit.

Upgrade to a totally automatic solution.