Suitability of Sodium-Ion Based Battery Pack as a Cold-Start Alternative to a Conventional 12V/15Ah Lead Acid Starter Battery

This dataset contains unprocessed measurement data obtained during low-temperature pulse-discharge testing of a sodium-ion battery pack compared with a conventional lead-acid starter battery.  The purpose of the tests was to evaluate cold-start performance and voltage stability under repeated 200 A / 3 s load pulses at various ambient temperatures. It is original raw measured data without processing.

All tests were performed at the Department of Electrotechnology, Faculty of Electrical Engineering, Czech Technical University in Prague, during 2025.  Files are direct exports from the Neware CE-6000 test system.