Thank you that's what I had seen around on youtube in the battery tests. 4-wire Pechè?
I didn't understand much .... Anyway to me server just to understand if some batteries in my case agm 12v in series tot. 48v have all the similar values of internal resistance.
Oh my comment is about people who think they can "verify" the quality of Lifepo4 cells they buy with their own resistance tester. Sunshine will probably know the most here about AGM testing.
I just wanted to have an extra tool that would give me the ability to measure the state of resistance. A practical example could be the state of health of my agm batteries as as a result of my skills in the fv about 2 years I had made the mistake of buying 12 v batteries not all at the same time but with a maximum of 6 months. Therefore, even if to date my accumulation is fine and gives me satisfaction, the batteries are not the exact same age. In addition, I have been mounting an equalizer for a few months that shifts current from one battery to another in order to keep almost the same voltage on the 4 .
I don't think it's a useful pursuit. You can balance your batteries, capacity test them, and that's what you got that's their health. I don't see a real value in knowing more than that.
So would buying a tool be useless to keep as a tool in photovoltaics?
I would say so. I am quite an involved enthusiast and I have not considered buying one.
Thank you for the time you have dedicated to me.
You're welcome, I enjoy it.
