The document discusses testing requirements for electric power train vehicles. It states that gradeability tests should be conducted at 60% state of discharge for the REESS to determine the maximum grade angle a vehicle can overcome across its whole speed range, with requirements of 3.81° for two-wheelers ≤ 1kW and 7° for all other electric power trains.

1.  Test is done for r=electric power train vehicles at 60% state of discharge condition
of the REESS
 Gradeability test: Maximum gradeangle that the vehicle can overcome in the
whole speed range.
 Two wheeler electric power train vehicle having net power ≤ 1kW : 3.81°
 All other electric power train: 7°