Hey Lure, if you could share a bit of your code or a github link to help others get started, that would be awesome!!

Nice, JSON interface for http://x.x.x.x/cell and http://x.x.x.x/get_data are really useful for quickly inspecting configuration and status.

Guys, thanks for all of the help. I have been moving my settings to match the recommended values from this thread. I have one question regarding float voltages.  While away from my boat, I ha...

I have send the updat to Rick, so he will forward it to you, there is no attacment ikon here.  

@tine  Here is the serial number on my Master box: 9-M-1067. This is a system with two slaves, to be used with an SMA Sunny Island 6048-US-10 inverter (this inverter is a master with 3 slave...

12 + 11 What is the Master BMS serial? I have to send you the dedicated firmware update.  

@Bill Haven't sent the file to AI yet. My plan was to test the latest firmware from REC and Wakespeed to see if it solved any problems. If you send data, it would be nice if you could share your fi...

Was the data file sent over to Al at Wakespeed. I'm have similar issues. 

@Trond I have same set up except I am a REC Q BMS.  Two shunts. The one on th3 battery is a VE Smart Shunr on the battery negative and a dumb shunt on the positive Alt wire. Has anyone found a...

I'm in the process of working on this same wiring for one 9M master and two 2Q slaves.  While I did purchase the necessary cables, I still will need to insert the wire terminals into the 14-p...

@tine   My new system has 23 cells (LTO) at ~2.3V per cell. I've received my new system (9-M master + two 2Q slaves), and am wondering what is the best way to divide the cells among the two ...

@tine In my system the distance from the plane where I'd like to run the BMS cell wires, to the surface of the inter-cell bus bar, is about 45mm. Is that close enough to cause an EMI problem? The i...

@Bill I am hoping it will be first quarter 2025.

Ok thanks, IOS user so will need to revert to the batch file.

@Rick " You also have a large hysteris but that will only allow it to work under large imbalance condtions." Because of the need to use 4/0 wires on cell #6 to allow me to "fold" the batteries to ...

The power line that continues from sub-pack to sub-pack from batt- to bat+

@tine Thank you tine; that is good to know. When you say "power line", do you refer to any nearby 120/240-volt AC line? Or do you refer to any nearby high-current DC power cable? Also thank you f...

Do not worry. We stop balancing for measurement. Keep the wires 90° to the power line so you minimize the EMI. Keep the loops as small as possible. @ Rick I just finnished writing the code for ...

@tine   Rick had mentioned that the cell wires should be equal length. I plan to use 18 AWG wire (0.8 mm2), which is 21 milliohms per foot. If I don't try to make the wires equal length, th...

Thanks Rick. HTTP calls will work great for me.

@Rick this is indeed good news. Any idea on the timing?

Peter, I will answer your tech questions here 1)  WiFi values can be read using HTTP get calls.  There is another thread on this forum with info and others who are doing it.  You wi...

With all of the recent changes to the WS500 firmware we have decided to sunset this product development.  We suggest you use the android tool available from Wakespeed for firmware updates.&nbs...

This is what we got back, which is encouraging and keep in mind that the Master uses firmware that is keyed to the serial #, and has to be requested from engineering. WCIB does not work on Ma...

Sorry, 35€ is more like US$38, not $37.

@tine Thank you for your fast and detailed reply!  May I ask what is the "RC" component? "C" as in capacitance?  Based on your advice, I will disable the Neey balancer and only use it i...

Well we can write the code for 2 Serial Slaves for SMA SI. We have it for Victron already. I strongly advise not to use Neey BMS in conjunction with REC. This is why: it introduces measuring err...

I have the configuration tool version 1.2.2 and when I try to update the firmware from 2.5 to 2.6 the program just closes down and the update file is not sent to the wakespeed.  Is version 1.2...

Hey Bill, I am not sure if the Master supports this new function but will check with engineering and report back.

Hi Rick, thanks for the response. Here is a screenshot of the 9m SW/HW. I've checked the website and unless I am missing something, do not see any newer firmware. It will great to be able to see wh...

Hello Tine, Thank you for your reply. Now it is 9 months later and I am finally installing my battery system. I had bought the surplus ("new-old-stock") LTO cells several years ago, so changing t...

Bill, I looked over your parameters and in my opinion, they are pushing the limits on both the high and low voltage side. Between 3.5 and 3.7V there is only 1-2% capacity so I would tend to be a bi...

@Ben I've looked across all of the documentation and tried to use WCIB? but the command is not recognized in the manual command line. 

Your question:1. I cant explain you, I don't know this in detail.  But the 3part manual page you post don't sound correct to me. I never have seen this document, no time at the moment to study...

Hello, I have been using my REC-BMS setup with the following settings for the past month. Some of the settings that my electrical engineer designer has specified are different than what I've seen i...

@Rick Thanks.  Got it.

The cable is custom assembed and comes as part of the REC BMS software kit. You can buy it here. https://ogm-energy.com/products/rec-pc-software

My contractor installed my REC BMS and batteries but didn't leave the cable. Is there an amazon link for a suitable config cable? Thanks  

@Rick Thanks Rick.  I cleaned it up with alcohol and it appears to be a circuit board fuse, because there is an "F1" next to it.  So I guess I need to know what fuse it would require. See...

Great, glad you got it working.  For reference, if you want to move to the VE.CAN port here is a quick video to help setup the BMS and the Cerbo. https://ogm-energy.com/community/ogm-user-for...