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Topic starter
October 22, 2025 3:59 pm
Hey folks; Looking for some assistance. Very new to this EG4 unit with my AGM batteries.
I got the system up and running...I think.
2 MPPT's setup
String 1
6 - JAM78D30-590/MB on one string.
String 2
2 - Canadian Solar CS6k-300MS
6 - Eclipsall NRG72-315
5982 watts potentially.
2/0 cable from battery to battery and back to the inverter. Voltages match the inverter. The batteries dropped to 5.9 volts last night.
Batteries are AGM. Bronco 1601 - 400 ah at 20hr. I chose AGM's becuase we are gone for 2 months during the coldest months and we shut the cabin down and don't have anyone on the lake to brush the panels off after a good snowfall.
Appliances
Running an AC 1.8amp fridge
TV is on after 7ish pm until midnight
Starlink is running 24hrs.
Well pump draws 1200watts when filling up the tank, usually a 5min run.
I work from the offgrid cabin and have a laptop and 3 monitors running.
I've had a few days of low light coupled with the shorter days up here above the big beautiful border line.
I've had to run the generator a few times now and find myself skirting around the 50vdc mark with another dreary day ahead of us for the next 3 days.
I've also had a few different local "techs" provide me with different settings and I've now confused myself. It seemed when I was running my older outback system that I didn't have to worry about low light days as much as I am now. It was setup as a 24v series/parallel both panels and batteries.
Partially because I can now just view the voltages quite easily. Where as before I wasn't able to view them without going out to the shed to measure voltages via my trusty old Fluke. I didn't have the Mate or Mate 3 with my old Outback system. I'm looking for help determining the optimal settings for this system.
I attached my settings and snapshot below. If anyone has more experience with the AGM batteries and the 6000XP I would appreciate some feedback. I just spent 6000.00 CDN on these batteries and don't want to destroy them.
