Recent content by meetyg

No pre-charge problem if you use my method, by switching via the inverter on/off switch. Also, as the relay I recommended has an LVD and return voltage setting, you could set LVD to pretty low to take into consideration voltage drop during load. Then set return voltage to above resting voltage.

Yeah, I had some more things going on in that picture. Let's focus on this: Basically, you need 6 lines: 1. Voltage sensing lines (pos/neg) going to your battery pos/neg, or straight to the inverter DC inputs. 2. 2 lines to the rocker switch terminals. These are the lines that are switched...

I have a similar breaker and 10awg PV wire. Although the strands are pretty thick, I preferred to use ferrules. No problems so far.

What inverter do you have? Does it have a remote switch/panel ? If so, it's not that hard. I recently did this with a voltage sensing relay and an FCHAO 24v 1800w inverter. I opened up the remote panel, which has a simple ON/OFF switch. Soldered two wires, one to each if the switch terminals...

Why do you think so? Because of the weight of the panels? Anyways, I was necessarily recommending the use of these, I just wanted to understand if this the OP's intention.

Do you mean something like this? https://www.aliexpress.com/item/1005006208628561.html

First, I think it's rated at 30 amps, not 20. Second, if you are worried about voltage spike backfeeding into your 12v system, you could add a diode on the input. It could be a standard Schottky diode, or an ideal diode (MOSFET based) but with less power losses. I had it connected to my 12v...

I have this little beast: https://www.aliexpress.com/item/1005002315724901.html Also used by Andy from Off-Grid-Garage on YT. It can boost up to 60v. Although it's a cheap Chinese device, it's pretty capable and reliable if you don't push it to it's limits. I hope this helps.

What is your setting #2 set to ? If it's set to UPS, it might be intolerant of noisy/unstable AC voltage. Make sure it's on APL.

The Xiaoxiang app is only for JBD BMSs, not JK.

Bingo... Sorry I didn't have the time to draw up a diagram in the first place. It would have saved all of us the confusion, trying to understand each other...

No, look at it again. First they show it opens at 4x the amperage, but no fire, cause it's wired correctly. Then they do the same test but wired in reverse: immediate fire!

OK, so about #2 ‐ It depends what you want to do. If you are doing serious maintenance (like rewiring) then yes, you will want to turn off inverter output to the MTS. But in most cases the MTS is enough. Most inverters have an ON/OFF switch for AC output. But AFAIK this will not prevent the...

I use the MTS on the OUTPUT (to loads panels). I'm not understanding your intentions... Can you scribble a diagram of your setup?

Great. I use mine solely as a manual transfer switch. I do not count on it to be a breaker in case of overload. So I have proper breakers before and after. You should get a model that will handle your max loads amperage though...