Determination of hydrogen emissions during the charge procedures of the REESS Discharge of the REESS Ambient temperature of 293 to 303 K Soak Hydrogen emission test during a normal charge END Soak Hydrogen emission test during a charger failure Ambient temperature 293 K ± 2 K START Vehicle/REESS preparation if necessary) Discharge of the REESS Ambient temperature of 293 to 303 K Maximum 7 days days days Maximum min 12 to 36 h 12 to 36 h Maximum 7 days Maximum 15 min Maximum 2 min after connection to mains Maximum 2 min after connection to mains