Re: [RE-wrenches] Evaluating battery health

2024-03-11 Thread Dave Tedeyan via RE-wrenches
Hi William, Thinking out loud here, and I am guessing that there are reasons why not to do this. But what about putting a voltage tester across each battery and running a quick test? I mention this because just a couple days ago, I went to check on a grid tied battery backup system where capacity

[RE-wrenches] Evaluating battery health

2024-03-09 Thread William Miller via RE-wrenches
Friends: Evaluating the state of health of a battery array is one concept I struggle with. It pretty easy with flooded batteries—charge them up and check SG. Sealed batteries are different. I do track “at-rest” voltages of discrete 2 volt VRLA cells. This generally can’t be done for mono