Inverter solid beep, charge controller stating over discharge protection, one breaker breaking

[Marie]

I could use some help please!
Here’s the run down…..

Yesterday was 111 desert heat. We had full sun.
Awoke at 1am to the charge controller shutting down. This has happened twice in the 4 years of our solar. Due to running too much. I don’t think we ran too much yesterday although I might be off on that.
I got up in the morning to hit the button on the batteries to turn them back on and the charge controller turned on, went to the battery overdischarge protection screen and shut down.
I waited a bit tried again. Same thing.
Tried once more and this time it didn’t shut down however our inverter then started to beep a solid beep with the exclamation mark light, that shows low voltage, and shuts power.

Is this just a case of needing to let it charge longer?
Could there be something with the batteries, controller or inverter?

Here are pictures of the charge controller screen over the course of 30 min or so to show the voltage etc.

Lastly one breaker popped twice during this.
It’s located between the charger controller and the solar. Pictures show breaker and which wires it’s connected to.

Our system:
80 amp charge controller (Impinvt)
2000 watt inverter (renology)
975 watts solar panels
3 - 1300 lifepo4 batteries (Lion)

 

[MikeInKingman]

Not sure what your Charge Controller thought it was doing at 1am, anyway...did you mean the Inverter shut off at 1am?

If batteries are generating an Over Discharged alarm on the Charge Controller, they might have gone to sleep, and need to be woken back up.
You'll need to find the recommended procedure for your specific make/model of Batteries.
I'd also verify with the battery manufacturer that however you have them connected(I'm guessing with three they are parallel), doesn't need to have a communications/balance cable between them. They might also recommend breaking them out periodically and charging them separately before connecting them back together, to keep them balanced.
Good luck, stay safe.

 

[Q-Dog]

10.75 volts. Your battery is dead.

 

[Marie]

Not sure what your Charge Controller thought it was doing at 1am, anyway...did you mean the Inverter shut off at 1am?

If batteries are generating an Over Discharged alarm on the Charge Controller, they might have gone to sleep, and need to be woken back up.
You'll need to find the recommended procedure for your specific make/model of Batteries.
I'd also verify with the battery manufacturer that however you have them connected(I'm guessing with three they are parallel), doesn't need to have a communications/balance cable between them. They might also recommend breaking them out periodically and charging them separately before connecting them back together, to keep them balanced.
Good luck, stay safe.

So it was the charge controller that beeps, says battery discharge protection and then shuts down.

I thought it was that somehow the batteries drained down as it started charging the next day and worked over night.
Continued to charge yesterday but went out again last night.
This was with only our fridge plugged into it.

So something going on that I need to get fixed ASAP. We live in our bus full time.