Recent content by McDavid403

I have the 100W panels from Sunpower and they work great, even now that they are dated, still some of the best output. I was getting 95w consistently out of the box. For those in Canada, I purchased from Microgreen for $130/ panel. They are on special right now. You have to inspect the panels...

I see, appreciate the clarification thanks @sunshine_eggo Am pretty happy with that output then for a 100w panel

Here’s what I see..

Hi, Does anyone have experience with the Renogy Rover Li 40 Amp MPPT Solar Charge Controller. According to the manual, the MPPT charge controller should boost the current going from the panel to the battery so you don’t lose any power due to the stepped down voltage. I have a Sunpower 100W...

Thanks Mill, did you need to configure anything on the BMS? Does it balance between cells or did you find your two packs ever get out of synch?

I currently have a 4S 12v setup using the JBD SP04S028 as my BMS. I am planning on building two more of the exact same battery pack with the same BMS and would parallel the 3 battery packs. So i would be a 4S3P setup with a total capacity of 840ah, with each pack having its own BMS. From the...

Hi, I want to expand my LifePo4 Battery System that is currently in my travel trailer to add a solar array and increase my inverter capacity. Am looking for input from the community on options pros/cons. My current setup for my battery pack I built has: 4 x EVE 280ah cells (LF280K) JBD...

Just noticed, the BMS had set total capacity to 252000 mAh. I never changed it but that’s what it was set to when I read the BMS config settings. I’ve changed it back to 280000 now.

It was indeed a bad connection. Volt meter showed cells were all fairly matched and volt meter was not picking up the spike in voltage for cell 4. After I tightened the one terminal which was loose, cells are back to what I was seeing before. Thanks again for your help!! What a great community!

No, but good suggestion. I’ll do some further testing when I’m back at home. I might try to top balance each individual cell again as well.

Yes same battery from that post. BMS settings are the same. I’ll re-check my connections when I’m back at home. But there is something definitely off with that 4th cell. When I’m charging from the generator or on solar, that 4th cell is always triggering the high voltage shut off and is at...

Hi, I have the JBD Smart BMS 4S Lifepo4 200A BMS with Balancer. Model sp04s034 on my 4 cell 280Ah build. Have been charging with solar sometimes with my generator. Things were working fine until now. Am seeing one of the cells (cell 4 in my setup) have big voltage drops when a large load is...

Thanks! I have the cell full voltage now set at 3.5

I have it set at 3.5v per cell. I had set it at 3.6 just the one time to see what would happen with that 4th cell.