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Consider a variac for AC step up. It worked for me. Try putting it on either end of your long cable to step up the voltage and see what works best. If your DC only, try a better quality buck converter...

You don't connect the pi to the ecoflow. Assuming your ecoflow app is working, you connect the pi to the ecoflow server to get the stats. So much more info than the official app! You need the latest pi 4 or zero with a current raspian OS with python 3.11 If your interested, I'll post the code...

I've been living off-grid for a long time, and up until now, I've always made my own batteries and systems. 10Kw of used solar panels 32 EVE Lifepo4 280ah batteries in Seplos battery boxes, giving 30KW of battery capacity. Growatt 6KW all in one split phase charger/inverter for when I'm there...

If you're interested, you can get tons of info from the EcoFlow battery packs. Im using them to power my offgrid house, they are low cost, have 20w idle consumption, tons of output power, be connected to any big battery for expansion (Im using 32 280ah EVE cells at 52v = 28kwh) and can be...

I use the Phoenix inverter when I was not at the house. I turn everything off except internet and my security system and drops the load to under 50W. The Pheonix only uses around 10 watts idle consumption unlike my growatt that used 120, but the Phoenix 800 didnt have enough power for my septic...

Just Daisy chain the 2 together, using the AC charge cable. it's that simple. Make sure AC is always turned on. You get to use the full capacity of both batteries.

Connect any 48v battery to the solar port, you don't need ecoflow batteries, I used 32 eve lifepo4 cells to add 28khw. Use the solar cable. https://www.amazon.com/gp/aw/d/B0BZCWT6HZ?psc=1&ref=ppx_pop_mob_b_asin_title

I'm doing exactly what you describe. I have 28kwh of eve lifepo4 52v batteries connected to my ecoflow Delta 2 DC charge port with the solar cable. The solar cable allows the power to charge at 500w instead of the 100w car charger cable. Your pro should charge at the full speed your solar port...

get the venkor version (https://github.com/venkor/SolarShed.git) and checkout the remotes/origin/1-update-gettracerdatapy-from-python2-to-python3 branch. Run these in succession: Code: git clone https://github.com/venkor/SolarShed.git venkor cd venkor git checkout...

Did this ever get resolved? What was the solution?

Ok, Here is what I did. It's been working fine for over a month now. First get your hands on an MR1100 hotspot router. eBay has been good for me. I found used ones for under $100. If your using ATT (I haven't tried other providers, but any network that gives unlimited plans should work), you...

BTW, if anyone needs a low cost unlimited data plan thro ATT (or any provider), look at using the Netgear MR1100 hotspot router. I get them on eBay used for around $99 The key feature about this device is that you can reflash the firmware, then edit the IMEI number. Then you change the IMEI to...

This is great to see, all my hard work getting used and getting useful results. It's all I could have hoped for when I started this project many moons ago. Thanks to everyone for their feedback and suggestions. Joe.

Thanks for the idea of using averaging, this makes sense...

Hi, you could do 4 scripts, each using their own serial port. But you will need to modify the way the db/grafana works to separate the data. It's easiest or simply use 4 pi zeros, 1 per device. They used to be cheap! Hopefully the price goes down soon

It requires batteries to operate, but if they are working, it appears solar power can go directly to the load, bypassing the batteries. Hope this helps

Ok, not sure 6 will fit, but what can work is to heavily tin the end of the stranded wires and file them down to fit. That has worked well for me in the past.

What's the point in running 6 Gauge wire at 240v ac? 10 gauge is now than sufficient unless you're doing extremely high amps. Look up the many free tables to work out what you need for the length your running. Save the 6 gauge for low voltage dc runs.

A Dtech RS232 USB cable connected from a Chargery to a raspberry Pi

So glad your finding it useful, all i can ask is that you help support the project by aiding others achieve the same goal you did. Also post any good tips you encountered to improve the installation process, and anything you add to it. Have fun!

Looks great! When i get home in April I'll take a look to see if i can find anything wrong with the script. Did it always fail reading and decoding the data for cell #16? This might be a clue. You will n need to run it in debug mode to find out.

Looks like raw data for cell 16 voltage was corrupted. That points to a bad communication pipeline.. Check all the wires are connected firmly. Run it a few times in debug mode and see if it always fails trying to decode cell voltage 16 and around the same elapsed time. I have the same device...

Run the script with a -d flag and post the results of the last 20 lines, that will put it in debug mode so i can see what breaks

Don't modify the code for the 8s chargery. The change is only for the 16s version.

The wiring can a little confusing at times.

I'm sorry. I'm away from my lab right now and just answering from memory. I'm back in April. Your right, on the chargery it's just 2 wires. Rx and gnd. Rs232 comms are as is on any other project. Pins 2,3 & 5 on a DB5 I believe. Use Google. You want to connect to Rx and GND. Above is an...

I think you would need to rewrite the script in C to work on the esp32

Look at this old thread https://diysolarforum.com/threads/chargery-rs232-interface.3469/

Look thru this thread, I'm sure it's been covered before.

The connection is 3 wires, look back thru the blog for an example, also check dmesg to confirm the connection to USB0 is working after you plug it in.

Not sure about that adaptor, beware of ttl voltages as they damage the Chargery. Thanks for the info, i will update my page.

The problem is with those cheap cables, they simply don't work for rs232. I tried them as they were very low cost, and wasted many hours. Go get a real RS232 cable from a respected vendor and all will work as you expect...

You don't need that adaptor, the USB port on the PI4 is simply used as a virtual serial port. You can connect the 3 wires from the solar charger directly to the GPIO pins exactly as you would fit any project using serial read, write and ground.

Unfortunately no, we must wait for a firmware update

It's exactly the same as connecting a raspberry Pi or PC. Look at the thread for details.