Victron 24-3000-70 testing for an off grid system. Was running a 1,700watt space heater to test. Battery is lifepo4 280ah had 253 ah SOC. Voltage was 25.8 under load. Shut down and low volt light lit up then after about 30 seconds it restarted and ran for another 15 min before I stopped test. Battery rebounded to 26.6 without load but SCC on with 14a in.
What is cause? What to do?