Hi Stuart - This is a video I have been waiting for. Im a Batrium user, and their 'ramped' targets feature is rubbish. It works in the exact opposite way to yours - It works on SOC and charging current, not on cell voltage and charging voltage. Victron has been very clear in their communications with me that Batrium's way is wrong and that VOLTAGE control is the way to go. Your solution and explanation are fantastic - and Im glad to see its done right. I have a DIYBMS kit that I haven't installed yet, but now that your system supports these new features it's given me the motivation to build it up and completely replace the Batrium. Well done, and keep going!
Yes David, now it's time to change something :-) A year earlier I also looked at the Batrium, but decided on diyBMS. Now my little Cerbo chief is very amused about dynamic charging - and if you want - maximum charging power to the edge and then - smooth charging to the final voltage. Standard or tuned - whatever you want!
Great presentation and again thanks for sharing this knowledge with us! Looking forward for the next update on the shunt, that would be another awesome solder project 🙂
Thank you for your project and for continuing to support it) Do you plan to develop an Active Balancer as well? To use it in parallel with the passive balancer...)
I like this update or upgrade a lot, but would need a canbus version for the Growatt SPH = grid tied series that still supports the low voltage batteries (not only hi Volt beyond 100V). The only option I had found has been the SEPLOS BMS even though I would have loved to go for this BMS. Hope there will be someone adding such a feature somewhere in the future.
Which Growatt inverter is it? This forum thread appears to say the SPH series supports PylonTech battery. diysolarforum.com/threads/growatt-sph-series-inverter-battery-bms-protocol.21829/
I feel like this is the major change that will herald a major increase in deployed BMSes! Now to update my v4.2 “9 May 2021” controllers… Great work! I can’t wait to start exploring the new features.
Very good job Stuart. I've waiting for the pylontech emulation quite a while because I'm an Deye hybrid User. The Deye speaks Pylontech but it seems that it needs the SOC. Afaik your shunt is not available yet so, is there another option to get the soc in the controller?
@@StuartPittaway Good to hear you're still on this topic. I'm wondering if the set SOC under Utilities will do something when connected to a pzem shunt?
Hi Stuart. I believe my old Pylontech extra 2000 batteries need a Firmware update. Pylontech technology's are not helping as out of warranty.. I have managed to get a little bit of charge in them by setting my solis inverter to lead acid.. but am still getting can com fail. The batteries haven't been used for a few years as have only just got a house worth putting panels on. Do you have any idea where I could get Firmware for the extra 2000 batteries !! Regards Mark
Very cool Stuart, I’m just putting together my first project so look forward to testing….. for now just waiting for ATTiny and INA229 production to replenish stock online :-) PS is the INA229 swappable for one of the variants?
Tremendous work! Thanks. Crazy ask. I already have genuine Pylontech battery packs.. but I'd like to build on your amazing job.. By any chance would your emulation also be able to integrate pylontech BMS data into your BMS and feed Victron's Venus with aggregated data? By this, I could run 2 separate BMS, same DC bus bar, and expand my existing system with diy battery. Would be a huge gain for large community.
Greetings from Pakistan We installed Solis 5kW RHI 5G Hybrid Solar Inverter (230V / 50Hz) connected to 5kW Candian Solar PV Panels Two (02) Pylontech US3000C Batteries are operational since 2022 April It would be appreciated if you could guide us which other brand of LFP Batteries can be connected with Pylontech Also please share How to order you tools / monitoring system for Pylontech US3000C Thanks
![Current Shunt Add-On Board [DIYBMS]](http://i.ytimg.com/vi/5VLVrcJPMIQ/mqdefault.jpg)
![Current Shunt Add-On Board [DIYBMS]](/img/tr.png)
![DIYBMS Floating Lithium? [Sept '23 Update]](http://i.ytimg.com/vi/RwpGzLBFyBQ/mqdefault.jpg)
Stuart, you leave me speechless. I can only say Thank you for your generosity in selflessly sharing so much work
My pleasure!
Stu - love the opening, I thought I was watching a Tim & Eric video for a moment and expected you to tell us about the universe...
With my dull voice you'd have been asleep in no time!
You can't stop amazing us Stuart.
Thank you.
Thank you!
You're welcome!
Hi Stuart - This is a video I have been waiting for. Im a Batrium user, and their 'ramped' targets feature is rubbish. It works in the exact opposite way to yours - It works on SOC and charging current, not on cell voltage and charging voltage. Victron has been very clear in their communications with me that Batrium's way is wrong and that VOLTAGE control is the way to go. Your solution and explanation are fantastic - and Im glad to see its done right.
I have a DIYBMS kit that I haven't installed yet, but now that your system supports these new features it's given me the motivation to build it up and completely replace the Batrium. Well done, and keep going!
Excellent, let me know how you get on.
Yes David, now it's time to change something :-)
A year earlier I also looked at the Batrium, but decided on diyBMS.
Now my little Cerbo chief is very amused about dynamic charging - and if you want - maximum charging power to the edge and then - smooth charging to the final voltage.
Standard or tuned - whatever you want!
NOW my diyBMS works PERFEKT!
Thanks a lot for your really well work!
Great to hear!
Great presentation and again thanks for sharing this knowledge with us!
Looking forward for the next update on the shunt, that would be another awesome solder project 🙂
Coming soon!
Thank you for your project and for continuing to support it)
Do you plan to develop an Active Balancer as well? To use it in parallel with the passive balancer...)
I probably won't design my own, but happy to support existing ones through the rules etc.
Very well done sir!! You are coming along really well since you've started. 😎👍
Thanks 👍
I like this update or upgrade a lot, but would need a canbus version for the Growatt SPH = grid tied series that still supports the low voltage batteries (not only hi Volt beyond 100V).
The only option I had found has been the SEPLOS BMS even though I would have loved to go for this BMS.
Hope there will be someone adding such a feature somewhere in the future.
Which Growatt inverter is it? This forum thread appears to say the SPH series supports PylonTech battery.
diysolarforum.com/threads/growatt-sph-series-inverter-battery-bms-protocol.21829/
I can confirm that this update to the controller WILL work with a SOLIS RHI 5k hybrid inverter, and communicate via canbus. Great work Stuart.
Thanks for the info!
I feel like this is the major change that will herald a major increase in deployed BMSes!
Now to update my v4.2 “9 May 2021” controllers…
Great work! I can’t wait to start exploring the new features.
Thanks.
This is really impressive. Now I just need an actual usecase lol.
hard to do in a rental flat
A flat is not ideal - but a small battery system could be made to work if you can get a lower cost overnight electric tariff to charge the battery.
if you have a problem, while preconfigure the wifi over putty, remove the Display, attached to the Board, then it goes like normal :-)
I've not run into that problem - but thanks for the tip!
So cool !
Thanks for watching
Very good job Stuart. I've waiting for the pylontech emulation quite a while because I'm an Deye hybrid User. The Deye speaks Pylontech but it seems that it needs the SOC. Afaik your shunt is not available yet so, is there another option to get the soc in the controller?
I'm working on another SoC solution at the moment - subscribe for when thats released.
@@StuartPittaway Good to hear you're still on this topic. I'm wondering if the set SOC under Utilities will do something when connected to a pzem shunt?
@@the_schmue2973 no it won't! The pzem doesn't support soc monitoring
Hi Stuart. I believe my old Pylontech extra 2000 batteries need a Firmware update. Pylontech technology's are not helping as out of warranty.. I have managed to get a little bit of charge in them by setting my solis inverter to lead acid.. but am still getting can com fail. The batteries haven't been used for a few years as have only just got a house worth putting panels on. Do you have any idea where I could get Firmware for the extra 2000 batteries !! Regards Mark
Sorry I don't
So awesome!! I wish this was around 2 years ago when I was looking at BMS.. I may have to switch 😂 everything is open source correct?
Yes, all open source.
Very cool Stuart, I’m just putting together my first project so look forward to testing….. for now just waiting for ATTiny and INA229 production to replenish stock online :-) PS is the INA229 swappable for one of the variants?
Ina229 is not swappable for the *existing* current shunt board.
Tremendous work! Thanks.
Crazy ask. I already have genuine Pylontech battery packs.. but I'd like to build on your amazing job..
By any chance would your emulation also be able to integrate pylontech BMS data into your BMS and feed Victron's Venus with aggregated data?
By this, I could run 2 separate BMS, same DC bus bar, and expand my existing system with diy battery. Would be a huge gain for large community.
No unfortunately, this isn't how it works, so it can't be used to "add" to an existing Pylontech setup.
Does these batteries have a PACE BMS?
No, all DIYBMS
Where can we buy it?
It's a DIY build unfortunately
Emulate pylontech HV or only LV??
Typical 48V units.
@@StuartPittaway Is the description of the HV protocol available somewhere? I'd be interested in implementing it.
@@zbynekwinkler I've not see that one, it might be the same??
Greetings from Pakistan
We installed Solis 5kW RHI 5G Hybrid Solar Inverter (230V / 50Hz) connected to 5kW Candian Solar PV Panels
Two (02) Pylontech US3000C Batteries are operational since 2022 April
It would be appreciated if you could guide us which other brand of LFP Batteries can be connected with Pylontech
Also please share How to order you tools / monitoring system for Pylontech US3000C
Thanks
This BMS isn't designed to be added to existing setups with Pylontech battery - it purely replaces the need for Pylontech units in the first place.
Suggest a way forward for me ... thanks @@StuartPittaway