donsolarak's latest activity

Ok, the EG4 manaul says Max PV array open circuit: 500vdc PV array: 120vdc-450dvc It's not clear why the voc and array max voltages...

That's open circuit voltage. I'm not measuring open circuit voltage. I'm measuring the voltage with a load connected.

18x Renogy 100w panels wired in series 24.3voc per panel 20.4vmp @ 25C voltage temp coefficient -0.28%/C current outside temp +12F/-11C...

I have a current shunt to measure SoC for all charging sources and loads. I'm not sure if the 3kw EG4 can track SoC using non-EG4...

No. No. No, provided parallel strings on the same MPPT are the same voltage. The only downside is if your inverter is tracking SoC...

I'm at 65.5 degrees north latitude.

I want to setup 3 pv arrays. A main array that will be pointing due south wired into my EG4. I want to setup two additional arrays...

You can't do what the subject requests on a pure voltage basis. Here are your options: Fast charging to full: 3.55-3.65V/cell - 30...

---ORIGINAL TITLE---- Best charge controller settings to achieve 10%-90% usage on lifepo4 ? EDIT-UPDATE and the ANSWER to this...

If you can tolerate slower charging the batteries should balance after a few charge/discharge cycles.

What you need to do is not use 12V batteries in series. Purchase a 48V battery for 48V inverter. Would solve this issue.

probably. Yep. Glad to hear. Sounds like a plan. Sadly, the manuals are usually poor, and one already has to know what they're...

I had already wired them and had the charger on them before I saw your reply. I was able to charge at the 50A setting. The voltage...

Sounds like classic battery imbalance. First, MANY NEW LFP batteries suffer from internal cell imbalance due to several factors that...

Ah... the 18V may be a "forced" voltage if the system voltage is 13.3+13.3+13.3+18.0=57.9V by the inverter/charger. Since "18V" refuses...

You've established that the charger will charge to 14.1V and hold there at a 10A setting. That's a million times better than a swift...

No I have not. Thank you for the further clarification. I can wire them in parallel and charge them but I can't use the EG4 since it...

I checked the voltage of all the batteries and they were all 13.15v out of the box. I know resting voltage is only an approximate SOC...

I verified that the charger, volt meter, and clamp meter all work as intended on the other batteries. That battery however does nothing.

Thanks for your reply. To update I had a secondary charge controller connected to a small array that was still feeding a very small...