Grounding

At the top of the HELIOS ESS battery is a grounding screw.

Grounding Screw at Top of HELIOS ESS Battery

Grounding the Batteries

Grounding Multiple Batteries

1. Ground the first battery. Secure an appropriately sized grounding wire to the grounding screw on the farthest battery. Use a torque of 2.5 to 3 Nm (1.84 to 2.2 ft-lb). Refer to your applicable code and check with the authority having jurisdiction to confirm local requirements. If this is the only battery in the system, jump to step 3.
   Otherwise, go to step 2.

2. Ground the second or more batteries. Pass the wire from the previous battery and secure the wire to the grounding screw on this battery. Secure another grounding wire to the grounding screw on this battery. Repeat until all the batteries are wired.

3. Ground to the inverter. Pass the wire from the last grounded battery to the inverter’s grounding port.