Key The test applies only to high-power battery packs and systems. The test applies only to high-energy battery packs and systems. Figure 1 — Test sequence5.4 Preparation of battery pack and system for bench testing5.4.1 Preparation of battery pack If not otherwise specified, the battery pack shall be connected with voltage class B if any, and voltage class A connections to the test bench equipment. Contactors, available voltage, current and temperature data shall be controlled according to the supplier’s requirements and according to the given test specification by the test bench equipment. The passive overcurrent protection shall be operational in the battery pack. Active overcurrent protection shall be maintained by the test bench equipment and operated according to the supplier's requirements.