Post by DEKRA

🔋Incorrect charging control, an invalid setpoint, or a defective sensor: the overcharge protection logic must operate safely under all conditions. Annex 9G of UN ECE R100 verifies that the overcharge protection function reliably prevents the REESS (Rechargeable Electrical Energy Storage System) from excessive energy input. Key aspects of the test: • Test object: complete vehicle or complete REESS • SOC at test start within the normal operating range • Constant charging with the maximum current specified by the manufacturer • Ambient temperature of 20 °C ± 10 °C with safety functions active • End of test: protection activated, +10 °C above maximum operating temperature, or after 12 hours The safety verification is considered fulfilled if excessive energy input does not lead to critical reactions: no electrolyte leakage, no rupture, no venting, no fire, and no explosion. This provides standards-compliant validation of the overcharge protection strategy. If you would like to validate your battery system against overcharge conditions, feel free to contact us: https://go.dekra.com/wN #DEKRA #BatterySafety #ECER100 #Overcharge #BMS