I am just getting my feet wet, so I have one 100 watt panel and a 12v marine battery. I plan on running a small water pump to circulate water in a black hose to see if I can heat some water.
The manual talks about grounding. Do I really need to ground this simple system of 1 panel, one battery and a charge controller?
3.2 Grounding ● Battery grounding: the charger can be installed in a positive or negative grounded system. Note: apply a single ground connection (preferably close to the battery) to prevent malfunctioning of the system. ● Chassis grounding: A separate earth path for the chassis ground is permitted because it is isolated from the positive and negative terminal. ● The USA National Electrical Code (NEC) requires the use of an external ground fault protection device (GFPD). These MPPT chargers do not have internal ground fault protection. The system electrical negative should be bonded through a GFPD to earth ground at one (and only one) location. ● The charger must not be connected with grounded PV arrays (one ground connection only)
Thank you for you help.