Onset HoBo® U12-015 series data logger battery replacement and repair

We repair and replace batteries on this type of logger.

  • Time and frequency that the logger is connected to the USB port of your computer. The logger draws virtually no current when connected and idle but draws, relatively, high current when first connected and when writing/reading the logging parameters to/from the logger.
  • Logging interval. It stands to reason that every time the logger writes the current temperature to the logger some current is drawn and if this is as frequent as every second the battery will not last as long as logging every hour for instance.
  • Shelf life of the battery. The battery has a reasonably long shelf life so if the logger isn’t often used it will still be good in a few years.

Care should be given to these wonderful durable loggers when exposing them to the high end of the temperature specification. If the temperature is a little higher than 125ᶛC for a very short duration that will not cause any damage but higher than 130ᶛC is looking for trouble as the battery can destruct. The battery will also expand slightly and this makes removing the battery and electronics very difficult.