Recent content by m0onspell

yeah guess I have to cope

... it blows a fuse on your meter. Been there. I don't know if it is safe to do it for larger panels, but what I did I just shorted plus and minus cables of the panel and measured current with my clamp meter. Worked fine for a portable 140w panel.

I think to make a solid conclusion you'd have to monitor it for more than one day since there's a lot of factors that could affect the results. But I think I could take my portable panel and measure the output on a cloudy day while the panel is flat vs perpendicular. Maybe I'll do it at some...

From what I am seeing most of the people reagard more perpendicular angle like 60 degrees as the most optimal tilt for the winter. The reason being is that the sun is low during the winter. So they're orienting towards the sun. Which should make sense, right? But the thing is that in my area...

1. No, you're running not the one that I've mentioned I haven't found reports about that issue with 40L. 2. There are multiple reports. Even if there's a mysterious issue with our machines that we don't know about and just can't find - people deserve to know that it may not work with their...

I wouldn't recommend this tester if you want graphs on PC. I have problems with the software being frozen randomly (thread). I wanted to buy 40A version but after seeing all these issues I am looking for an alternative.

Upd: I disabled windows power setting for turning off USB outputs and at first it seemed that it helped as it was running for a whole day without any issues. But then it froze again. It seems to me that the reason might be in the supplied USB cable. It is very flimsy and feels loose in the...

Same. Discharge seems to work fine, but in a charge mode the software is frozen two times now. So were you actually able to solve the problem?

But the goal is not to make 3.65V at the terminals. It is to make a battery full. You can accomplish it even by charging at 3.4V, the only question is time. Eventually it will become 100% charged. So setting 3.65V CV is fine, it will definitely charge a battery to 100%. When it stops absorbing...

Socrates now

Well, for now I am doing a capacity test, cause one of my new cells in 12V bank charged quicker than the other ones, though they started at a very close to each other voltage (definitely less than 0.015V difference). I was doing "pre-balancing", that's why connected them in series. So I decided...

I am doing a similar test with EBC-A20 (5A max in charge mode). Just a single EVE 280Ah cell, should I set the cutoff current to 5A so it cuts off immediately on reaching 3.65V? But then if you charge with a bigger EBC-A40L at 40A, when you reach 3.65V and you've set 14A cutoff current, that...

12V batteries, 48V strings, 2 in parallel, connected to buss bars: I can throw a balancer on each string like this: But what about the balance between the two strings? Do I have to worry about that? I know that the Victron and some others suggest doing it this way: That'll keep em all...

That's fine, but what if I have 48V strings in parallel? Your case is easier since you only have two batteries in a string, so you put a balancer on each string and then connect balancers - done. I wish they've included some real use-case connection diagrams in their product description. I also...

the problem is that modern battery monitor systems (Victron) suggest doing it in their manuals. I am trying to understand the mechanism of that fault. I've been told that if one battery trips open, than the other battery receives a full stack charge/discharge. I want to understand how that...