Notifications
Clear all
Topic starter
December 31, 2024 9:50 pm
18Kpv. PV or Batteries will NOT power loads under any circumstances. Always uses GRID. PV will charge the batteries - but it never finishes charging. SOC stuck at 98%. Signature solar put my LifePOE v1 batteries (4) into Lead acid mode trying to diagnose the issue. My Solar system has NEVER operated correctly (or predictably) since provisioning back in Oct. If I reset the 18Kpv (using the button in the app) - it will start powering loads and charging with PV - but after 10 minutes it will go back to "trying" to charge the batteries and the GRID takes over the loads. My system is supposed to be running in Self Consumption mode as indicated in the "Working Mode" section of the application monitor. I need help.My gut tells me I need to restore defaults - but afraid I will lose power and internet - thus will require me to drive 2hrs to get onsite.
January 2, 2025 11:18 pm
You should post your working mode "Battery Settings" and i don't know why you would be using lead-acid mode for LiFePo4 batteries. I can see you do not have communications working with your battery pack(s) or else it would have shown a State of Charge(SoC) but that's ok, you can still use Voltage triggers instead of SoC. Here's my Battery Settings for 3 LiFePo4 battery packs using the Pylon communications protocol(batt type #2).
January 10, 2025 12:18 pm
What have you figured out? Did you get it working? And running your V1’s in lead acid mode is fine they are just trying to diagnose the problem
January 10, 2025 4:42 pm
Did you solve your problem? I can start sharing my settings if that'd help.
Topic starter
January 13, 2025 1:55 pm
Yes - it's working better. Signature set the "stop charging" from 56 -> 55.4. I would never reach 56V when charging. That seemed to get the Inverted to start using PV for charging and loads. Still - I think there is some fine tuning that needs to be done - it appears I'm not getting a good depth of charge - voltage drops aggressively once discharge begins.
January 13, 2025 2:51 pm
If you have access to the BMS to look at the cell voltages or even just the Max Cell and Min Cell voltages look to see what the voltage difference is. I noticed my new Basengreen battery packs were not charging all the way and found they were more than 150mV out of balance. The BMS has a balancing circuit and wasn't hitting the thresholds required for much balancing to happen so I tweaked the defaults and tried to make sure the batteries stayed in the balance region for a few hours before discharging below that threshold(3.40v).
I noticed once my 3 battery packs were balanced within 30mV they not only charged to a higher voltage but also the EG4 18kpv was lowering the power to the batteries once they hit 98%(55.4v).
So maybe your batteries are still unbalanced and the high cell is kicking it out of charge mode early.
