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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...

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...

I see the advices in several places to fuse each individual string in series-parallel battery banks. I am having this configuration: With 48V strings that should be T class fuses. They are designed to be used with wall-monted holders. So how exaly should I fuse each individual string?

In one of Victron's manuals it shows how to use battery balancer with series-parallel battery bank: It says: I don't think I understand how to calculate that current. I tried to google but found nothing. Is there any visualization/explanation for that kind of fault available?

There are these pictures in the Victron's guide. Notice that with the shunt it shows midpoints connected: In another thread I was adviced to avoid "parallel strapping" 12V batteries together in series connections. So is this midpoint connection required for the Victron Smart shunt to work...

Are wires (1) (2) (3) (4) must all have an equal length? (5) and (6) as well between each other? If I wouldn't be using buss bars, is it (2) = (3) and (1) = (4)? This method is also nice, but main pos and neg are coming from different sides. Is it just schematic, ot there's any reason they've...

I am planning to buy 16 of these, already got a few: I have Deye SUN-5K-SG03LP1-EU hybrid inverter and plan to use them with it connected in 48V 400Ah battery. In the manual on page 26 there's a description of battery settings. So there's a "Lithium" mode, I suppose I should choose that: But...

I am planning to purchase 16 such batteries, already got a few: I want to connect them all to form a 400Ah 48V battery. My initial plan was to do it this way: In the manual there are examples of recommended connections, the closest I could find was this: That is similar, but instead of only...

Many AIO inverters have a feature that allows them to use the energy from different sources at the same time to satisfy the consumption. So lets say the load is 2000W, then for example they can pull 500W from the batteries, 500W directly from PV and the rest 1000W from the grid. Alright, but...

If inverter is connected to the grid that comes with a ground wire, why isn't it just used by inverter for case grounding? Just like any other appliance does I believe. So if I would attach wire which leads to earth electrode, from what exactly it would protect and how?

I am going to have a simple setup: Chargery -> Battery -> Inverter. No PV, no MPPT, just charger from the grid. This should act as a backup, normally I would use grid electricity. Looking at Automatic Transfer Switch options on aliexpress like the ones from TOMZN brand, they seem to be of two...

I'd like to be able to charge my LiFePo4 and AGM batteries through a cigarette socket in my car. So basically car battery would charge my other batteries. It says 180W 12V above the socket, so I think should be enough to charge at a decent speed. I am assuming that if I'd just plug into that...

I have two supposedly AGM batteries from two old UPSes. The terminals on one look good, the other one has some green powdery thing on it, which afaik may be a sign of sulfation. My cheap multimeter shows 0.6V on good looking one and 2.9V on "sulfated". An interesting thing is that when I am...

I purchased Victron 100/30 MPPT. It doesn't have "Load" terminals for DC load. So it also won't offer you "low voltage load disconnect" protection, to get it you'll have to buy a separate Victron Energy Battery Protect device. I am not going to have an inverter, DC load is all I am interest in...