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The model number is JK-B2A8S20P 2amp balancing, 8 cell, 200amp discharge.

I found a picture of my set cart and thought I could share. What you will see is 1. Insulated battery box with 2-12volt 300amp lithium batteries 2. Component board with inverter, charge controller and combiner box mounted with breakers at lower part These are mounted on a roll around mini...

Information to add to this discussion: The primary cables on the system are copper clad aluminum wires? They have proper ampacity but could this be the issue? During charging and discharging the amps are no where near the rating if the wire. Just need to be sure this is ok wire?

Knees volts? Not sure what that is? Sounds like I could get a couple of 200ah and add them to my 300ah set. That would be great as having 500ah would allow 5 days without sun and yet allow much more solar to be absorbed. Great!

I’m doing all this on my iPhone so the actions you detail are not possible. I’ll figure it out some day soon if I want to share as I do. Thanks for you affords:).

The main reason for high energy use is insulation. Insulate better and use less power. Dial down heat to 40-50 and use even less power. If you have lots of power to spare then these suggestions are mute.

Wow! 10 panels!! Your going to start a solar farm:). Put up 8 and hold 2 for spares? I did the math and if tilted proper with almost no back side gain my 4 panels will provide 10kwh on a nice day. Good luck and please give updates on your project.

Will there be an 8s in the model? Looks like a great option. Big help!

Good day. I set a single panel out at 10am. Set at 15degrees but should be 38 degrees this time of year. Very cloudy today. The panel after 5 hours had provided over .45 kWh. It was at about 150watts when I left about 1pm Solar time. Should provide about .8-.9 kWh for full day? One...

I took a screen shot of the actual model It’s. JK. 2amp 8cell 200amp unit. They offer about 20 models on this sight. I think the first pic had a different model shown?

I totally agree! Waisted PV charge time is no good. Also the heat cold cycles have to take a toll on the batteries. I did the insulated box. 1-2or 4 bee hive pads based on battery voltage and a 35f on to 45f off snap action switch to hold temp. Works great! May look rough in picture but I...

I have the BT dongle but did not check it? If it’s a brief problem I may not spot it easy. The crip idea has merit. I’ll check and add crimp if anything looks off. My use test on Monday-Tuesday should expose it? I’ll bring my tools out to the site. If I find it I’ll report so others...

Is there any feedback on if a JDB -BMS ? Any good or issues? Doncan sells them.

Picture is of the single panel at 9am It’s tilted. I did not clear it at all today. Had no real sun. Went back at 6pm and charge was .7kwh. One panel uncleared in horrible weather. At 10am it was only 27watts. It was 23f today.

My current plan is charge voltage 28.4. Absorb time of 15 min. Float of 27.6. Low voltage cut off of 24.8. I hope to operate between 15-95% for 80% of charge cycles????? Where is my error? I will set my JK BMS at 3.55 max and active balancing. Hope this will work?

While testing my new Victron Multiplus 24-3000-70-50 under load it twice shut down with 1,400 and 900watt heat gun loads. Both times indicating low battery status but the battery was at 26.4 and the low setting in the inverter was 22.4. My multi meter showed 26.4. Leads seamed tight? Both...

I found two pictures of output a bout 50 min apart. One was 1160watts was about two hours after first set up and 20 min after Solar noon. and one 1013 watts about 50 min later. As the second was almost an hour later and about 1:15 after Solar noon I’m guessing cold panel alone is not causing...

I have max of 88volts in the strings. The manual says 94amps or 2700 watts? Should be ok. Just can’t add anything?

I have looked for reliable info on this question and had some good responses that lead me to believe my possible set up would be ok but I’m still nervous so I’ll ask once again in maybe a better way. I have 2-12volt 300ah batteries in series for my 24volt 300ah bank. I may have a need to...

Input:) Use the inverter so a 120 volt stat and pads are good. The stats are about 25$. The pads I have used are either 16 watt snake tank heaters , 14$ each that only get to 106f in room temp. Also soil grow warmers 20watts work good. Same mild temps, 18$ each. I used the included tape...

Oh, it’s the barrier volts., never learned the Knees term. My bad.

Yes, I may have gotten a good deal. It was months ago now. The Bluefin is a great price for the bifacial watts. I don’t think a one year is a game changer. Most panels should be good and if good first year—good long term. I would go with either the Canadian Solar 390 (I think they are the...