Symphonie 3

[makadviento]

How long does the battery of the logger lasts?

[Drew Lepple]

The 2 D-Cell batteries and the coin battery that runs the clock of the logger are designed to last 2 years.  In very cold climates, it is recommended

that you change the batteries every year.

[jaribecker123]

With the battery capacity and average current consumption, you can compute the expected runtime of your project by solving the equation:

Battery capacity (in mAh) / Average current consumption (in mA) = Hours of expected runtime

For example if your project consumes 150 mA and your batteries are rated at 800 mAh at that current draw, you can can compute:

800 mAh / 150 mA = 5.33 hours expected runtime