Currently I have a system with 3 solar panels of 315W each, + 2 batteries of 120A each, a solar controller of 80A max, and a converter of max 3000W output.
Now, the problem I have with it is that it barely charges to full capacity. I have 3 displays showing me the battery percentages but all show very different levels of charging.
One is the 3000W converter that after few days of sun, it reaches 4 lines barely (100%). But most of time is 3 lines or 2.
Second is an independent voltmeter display I got for 5 bucks on amazon, that shows the most positive prospect, above 80% most of the time. never goes lower than 70%.
And the third one, is the one of the solar controller, that never went above 75% in terms of battery capacity. Stays within 50%-75% whatever I do.
So my problem is what can I do to get a proper measurement of how charged these batteries are?
Could be that I have some connections wrong? or maybe the solar controller is a defective one?
Does it matter if the batteries are connected in series? as I connected them to have more Ampers? (2x120=240A)
I'm Attaching also some images for reference, plus the way batteries are connected.
The Solar controller in sunny days sends about 7-8 Ampers to the batteries, atleast that's what it says.
The system is connected to a small cabin house to use for 1-2 led light bulbs, and charging phones/laptop. I thought also that maybe the house wires could be old and leak energy somehow, but even when I disconnected the house and tested the batteries alone, the same measurements happen.
I had previously also another solar charger of 80A but different chinese brand, that was charging much better to my knowledge, but the problem with that was that didn't have this system of shutting off when batteries were full, so they were 'boiling'. Anyway I accidentally burned that one, so I went for this one with this new tech of controlling charging, but I have a feeling is something wrong with this one because I observed when sun is very strong, the controller peaks at 100% shortly and stops charging, which is kind of stupid considering the battery is not full. But probably because it gets suddenly too much energy it thinks the battery is full and it guts the transfer.
Any ideas what can I do about this? Thanks in advance.
Now, the problem I have with it is that it barely charges to full capacity. I have 3 displays showing me the battery percentages but all show very different levels of charging.
One is the 3000W converter that after few days of sun, it reaches 4 lines barely (100%). But most of time is 3 lines or 2.
Second is an independent voltmeter display I got for 5 bucks on amazon, that shows the most positive prospect, above 80% most of the time. never goes lower than 70%.
And the third one, is the one of the solar controller, that never went above 75% in terms of battery capacity. Stays within 50%-75% whatever I do.
So my problem is what can I do to get a proper measurement of how charged these batteries are?
Could be that I have some connections wrong? or maybe the solar controller is a defective one?
Does it matter if the batteries are connected in series? as I connected them to have more Ampers? (2x120=240A)
I'm Attaching also some images for reference, plus the way batteries are connected.
The Solar controller in sunny days sends about 7-8 Ampers to the batteries, atleast that's what it says.
The system is connected to a small cabin house to use for 1-2 led light bulbs, and charging phones/laptop. I thought also that maybe the house wires could be old and leak energy somehow, but even when I disconnected the house and tested the batteries alone, the same measurements happen.
I had previously also another solar charger of 80A but different chinese brand, that was charging much better to my knowledge, but the problem with that was that didn't have this system of shutting off when batteries were full, so they were 'boiling'. Anyway I accidentally burned that one, so I went for this one with this new tech of controlling charging, but I have a feeling is something wrong with this one because I observed when sun is very strong, the controller peaks at 100% shortly and stops charging, which is kind of stupid considering the battery is not full. But probably because it gets suddenly too much energy it thinks the battery is full and it guts the transfer.
Any ideas what can I do about this? Thanks in advance.
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