Recent content by frthompson

So the cells seem balanced initially with delta of 0.001-0.005 but in the very last stage of bulk or just as it switched to absorb one or two cells on each battery would run up to 0.1 volts higher triggering the HDV. By dropping the bulk/absorb voltage and going through a few charge cycles and...

When I tried it with bulk/absorb at 14.2 it did so set it to 14.0 and it does not hit the HVD. Running it though a few discharge charge cycles and each time cells are more balanced. So once the cells look reasonably balanced when at full charge, might try bumping up the bulk/absorb again to...

Thanks, that seems to be working. Its staying in the range where it can balance the cells a little better now without hitting the HVD.

I have 2 12 volt batteries consisting of 4 eve 280 ah cells and a jbd bms in parallel and a victron multiplus charger. My cells seem to be behaving well and are very close in voltage. Balancing kicks in at 3.4 volts but cells are typically plus or minus 0.01 v. But at the very end of the bulk...

I suspected the disconnect too. I will rarely if ever will be actually pulling 200 A, that was with the air conditioning running off the battery. Thought I should test it nonetheless, thanks for the quick replies!

Pictured is the system in my travel trailer with my newly built batteries barely visible though the center opening (8 eve 280 AH cells configured as two 12 V batteries), 2 JBD 150 A BMS, and some other Victron equipment. I was testing every thing out and when drawing 200+ amps the battery side...

I'm not an electrician and haven't done this but there are 50 amp single pole breakers for most major brand electrical panels.

You can install a 50 amp breaker in your home panel and run the appropriate sized wire to the Multiplus.

Assuming this is a converter/battery charger? You converter would be wired just like it was before--probably with a wire directly to a buss bar or connected directly to your battery, and maybe a separate wire to your 12 v distribution panel. However the charge profile of your existing converter...

"Yeah I don't think I need the bms to control the multiplus and other victron equipment. That's why I got the Cerbo Gx with the gx touch. I don't think I need to over complicate it that much." Yeah in the end that's what I decided because I already had the victron equipment set up with my...

Take a look at this thread for discussion of bms's with direct communication to your victron equipment https://diysolarforum.com/threads/bms-for-diy-lifepo4-battery-and-victron-components.26741/

The Cerbo GX can be set up with a smart shunt and will monitor the voltage and state of charge of your combined battery pack and control your your multipluss and solar controller that way, without directly communicating with the bms's. However if you are trying to connect the bms directly to...

So you want to have two 4s batteries each with there own bms in parallel for a 12 v system correct? I think that would be 4S2P, not 2P4S. That is exactly what I am doing and I bought two JBD150a 4s bms's from the JBD store on Aliexpress, but there are some US suppliers of these too. I am...

The method of using vhb tape and sikaflex, isn't my idea, jump over to Airforums where it is common practice, including by professional installers, for mounting solar panels to the roofs of airstream trailers. VHB tape is designed for adhering panels on buildings, trailers, trucks, and yes even...