RE: npm1300: High-temp alarm during battery profile setup

Tharaka — Mon, 01 Jun 2026 09:57:59 GMT

Hi,

It should be noted that, regardless of the test temperature, yu need to charge the battery at room temperature first (mandatory step).

The guidelines explicitly state: "The battery must be fully charged before profiling at a new temperature. Follow the instructions in the application to charge the battery at room temperature to ensure consistent and reliable results during the profiling process." This is also shown in the nPM PowerUP GUI.

This means:

Remove the battery from the 45°C chamber and charge it at room temperature (20–25°C).
Once fully charged, place it back in the 45°C chamber to begin the discharge profiling phase.

More info on Profiling guidelines.
https://docs.nordicsemi.com/bundle/swtools_docs/page/app/pc-nrfconnect-npm/profiling_guidelines.html

Same goes with the other tempereatures as well.

Regards

Tharaka

RE: npm1300: High-temp alarm during battery profile setup

Simonr — Tue, 26 May 2026 13:06:19 GMT

45°C is the threshold for NTCWARM, which is one of the configurable termination voltages for the charging current. You can set it to 60°C as well with NTCHOT. Please see section 6.2.4 Monitor battery temperature in the datasheet for more details.

Best regards,

Simon