SolarShack

Hi, I was reading your inputs with interest and I would like to add this. At present in ZA they are still formulating regulations. so in the interim I run my inverters thru a ready board with it own earth leakage. they same as in the house. I earth the inverter chassis to this as well. Effectively the system now has its own earth leakage protection. On the DC side, PV's and batteries, I only earth the PV frames to the earth in the house. This is purely for lightning protection. also, depending on the inverter, the negative is being switched and is often the same point as neutral on the 220 side. so to earth the DC negative you will effectively be causing the earth leakage to trip.

Just to put my 2 bits in, there are more variables just to throw a spanner in the works. you get wet Cell batteries, you get Gel batteries, Deep cycle and so on. these all have their ( Preferred ) way of being charged. best is to " know" your batteries.

Hi all, I am new on here and I was hoping for some assistance. I have two 150 watt panels connected in series. ( 300 Watt ) . Two by 100 Ah 12v Batteries in series ( 24 volt ) These are being charged by a German made 15-15 charge controller. Everything is new. However, the LED's show orange even after a days sunshine. on the instructions this means the batteries are below 70% charge. This does not change day after day. when I measure with a multi meter it reads 24.4 volts. Does this sound like a faulty charge controller? I have removed all load including the inverter. Any ideas before I start swopping things out?