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    DM Dots - Battery Life Estimator

    Battery life calculator for the DM Dots

    Written by Cameron Everett

    Updated at May 11th, 2026

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      • Home
      • Bluetooth® Tags, Sensors and Scanners
      • DM Dot Family

      Battery life is extremely important for Bluetooth tags like the Dots that are sealed and “deploy once”.

      The battery voltage of the Dot Tags, Glows and Sensors is reported in the payload, and there is a low battery flag (1 or 0) that is reported in the device status bits and reflected in the mobile app.

      The low battery flag is flipped below 2.7V. If the battery recovers above 2.7V, it is cleared.

      See more info on the flags here:

      • DM Dot Family- Integration

      With our Digital Matter Wireless Provisioning Tool, you can tweak all of the tags' parameters to get the most out of your devices.

      See the effect of your parameters using the Battery Life Estimator below!

      DM Dot Tag — Battery Life Estimator

      DM Dot Tag — Battery Life Estimator

      Estimate battery life based on deployment mode, beaconing, and sensor sampling.

      Scenario

      Default = deployed. Shipping = pre-deployment storage mode.
      6 mo
      0 mo60 mo
      How long the device was in Shipping Mode before deployment.
      3 dBm
      0 dBm8 dBm
      Between 0 and 8 dBm. Linearly interpolated.
      10.0 s
      0.5 s10 s
      Advertising interval (snaps in 0.5 s steps).
      20 min
      Off3 days
      VBatt + temperature sample period. Snaps in 1-min steps up to 20 min, then 5, 10, and 1-hour steps.
      Estimated life
      —
      Estimated life
      —
      Battery (advanced)
      Default 580 mAh (EEMB CR2450L). Override if needed.
      0–1. Default 1.0 (battery low-voltage cutoff before nRF cutoff).
      0–1. Default 0.03 (3% per year).
      Show calculation breakdown
      Clamped TX power —
      Q_beacon @ 0 dBm (µC) —
      Q_beacon @ 8 dBm (µC) —
      Interpolated Q_beacon (µC/event) —
      I_beacon (µA) —
      I_cal (µA) —
      I_sample (µA) —
      I_idle (µA) —
      I_avg (µA) —
      I_self_discharge (µA) —
      Usable capacity (µAh) —
      I_total (µA) —

      *This estimator is an approximation only. Digital Matter customers should always conduct their own battery testing.

      Excel Source: DM Dot Tag - Battery Life Estimator

      calculator battery dot tag sensor glow dot tag

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