Logger battery behavior depends not only on ambient temperature but also on cell chemistry, device load and communication functions. Do not estimate battery life without model documentation and field records.
Match the model information
Use the manufacturer's manual for device model, recommended cell type, operating conditions and data transmission features. Note which usage pattern the stated duration assumes.
Compare gaps with events. Join interruption time, device temperature, battery indicator, communication status and battery replacement date on one timeline. This helps distinguish a weak battery from a connection or setup issue.
Plan spares and replacement
Build fault history from trips under similar conditions. Plan spare devices and cells under model-specific instructions; after replacement, check device clock and logging continuity.
