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don't know

I read something about that. I'll keep that in mind. Thanks

Nice. It'd be really cool to reverse engineer the communication it's doing and create an open source project for the server...

It would, yes. 13hrs on 5gal. I have it for remote job sites that have no power at all and while it's not being used for that I'm going to use it for backup. If I were buying one just for backup, I'd get a smaller one. This particular generator is a HF predator 9000 (7200w runtime). It...

skillz Will you send me the EasyEDA project?

Good idea. 480 scares me. I'd feel more comfortable going just to 240v. 12.5a at 240 over 230' has a drop of 2.5%, which is acceptable. Would this work? ROCKSTONE POWER 5000 Watt Voltage Converter Transformer - Heavy Duty Step Up/Down AC 110V/120V/220V/240V Power Converter - Circuit...

I read the same thing... but, after I connected it to the tx and rx of the bms. ? ...I plan to do a other esp32 to esp32 serial test to be sure it still works.

..also, I use heltec 16s active balancers on two of my three batteries.

they're 230. Seems like every vendor has multiple ah capacities in descriptions. I'm not sure why, exactly. She send me a capacity test screenshot of the same model cells.

The two benefits that I want from splitting them in the two banks are.. 1. Redundancy in the event of an issue with one bank. I don't loose power if I need to fix something, etc, etc 2. Troubleshooting a wonky module is simpler since the bms data is specific to one module (made of many...

Which shunt are you Which shunt are you using? I don't have one installed yet

That would be fantastic!

Solid plan. I was thinking similarly sort of. The plan is the split them, rebalance them and reconstruct two 16s banks instead of the one. I just ordered a second bms.

It's briefly covered in the JBD protocol doc (attached in a prior comment)

I didn't see that in the android app. Is that in the desktop app? ...I'll look again once I'm on site again on. Thursday

Yeah, I may go that way.

I think you all are correct about getting to a too-low state of charge and the balancers as the root cause. The batteries were down to near zero soc about 10 or so days ago and that seems to correlate with this new issue. The cells did begin to drift when it down that low. Since then I've...

It was designed on EasyEDA. If you have an account there the project can be shared. However, that design uses a fet that is totally unavailable anywhere these days... supply chain, chip shortage. If you order it, they'll happily build it missing the fet... which makes it useless. A...

Thanks for the pro-tip. I'll ship around

Hey all, I need some advice on solving a voltage drop issue that has emerged due to some planning and provisioning mistakes which I made. The layout... Shipping container has my batteries, scc, inverter and the array is just out side the container. 21.1 kwh lifepo total capacity 5kw 120v...

I think that is exactly what happened. Looks like the serial ground wire shorted. I replaced the bms and left the monitor off of it. When the new cells arrive and I build the 3rd battery ill build the monitor into an enclosure with soldered connections and test the bms here at the house.

...also, furtrader has a new version of the overkill library that appears to enable more writes. I have not used it at all

Only reason I went with this one was because I wanted splitphase grid/gen tie and batteryless running in ONE unit, not parallel

I checked in on my remote system just a minute ago and I was alarmed. One of the two 48v 16s overkill bms's reported some relatively huge current draw downs momentarily. ...and I dont know why. Hoping you all can plant some ideas. One of the images is of the current chart for both...

I think I agree about the spit phase approach ...after doing more research and finding real world prices. A sungold 6kw split phase is 1199 right now. Where as two transformers will likely run me 1500. ...and add two more parts into the system. I spoke to my contractor and he feels...

Maybe Steve from overkill would tell you... though that might be proprietary thing he wants to keep within the company

If the unit is in grid and solar charge input mode with low to moderate load and plenty of pv input (1.5kw+), it seems to switch sources a lot. ...like every minute. I don't know why... This lead to a net 0 gain in state of charge for my batteries over a couple hours while my gener was...

If I could just go look at the system I would. It's 90miles away. But, I suspect I'd see nothing unusual

Can one write new ui screens for home assistant?

I have some left over 2x2 steel tubing that I could use for stand offs.