15 minutes ago, jumper said:

My issue is with the vagueness of this statement as well as the fact that it is not quite correct. Did they tell you it would count 2 cycles when it drops below 60% and 3 cycles when it drops below 40%? They should have told you it will count a cycle for every 20% discharged, that would be correct and honest. I guess I'm just a stickler for specifics.

My main issue is that this all stems from one parameter not being set correctly and it doesn't give me much faith in battery "maufacturers" when they just tell people whatever they fell like instead of understanding and fixing the problem.

At least they have made their guarantee based on age and not cycles, I'll give them that. Does that guarantee that the battery still works after 10 years or that it still has 80% capacity after 10 years regardless of cycles?

 

@jumper Agree with you 100% they should have changed the parameter on the Seplos battery BMS to 90%, easy thing to do, I know it can be done if you install the Seplos software, I just don't want to do it, it may have some implications regarding the OEM guarantee. regarding the 10 years guarantee, I did not ask about the 80% capacity. Anyway, I am archiving all the info from the battery in case there is a dispute on the guarantee, I've never exceeded any of the OEM parameters. So far almost 2 years of using the battery and used about 1.6 MW of power the battery still performing within my expectations. See dashboard

15 minutes ago, jumper said:

Looks like the BSL might be a Pace BMS, it's not listed with the seplos batteries: https://solar-assistant.io/shop/products/pace_rs232

Thanks @jumper

29 minutes ago, jumper said:

Looks like the BSL might be a Pace BMS, it's not listed with the seplos batteries: https://solar-assistant.io/shop/products/pace_rs232

So I found this integration for the Pace BMS https://github.com/Tertiush/bmspace which I believe was put together by @tertiuscpt 

I have been wondering if it is going to be possible to get it running on an ESP32 with ESPhome using the RS232 interface on the battery, as my HA box is miles away from my batteries. 

Also, sorry if this questions seems obvious but if I want to connect to the RS232 interface, can I connect directly to the batteries RS232 port using the ESP32 as that has a UART Bus protocol or do I need to get something else? 

14 minutes ago, Antonio de Sa said:

regarding the 10 years guarantee, I did not ask about the 80% capacity

Yep, these are the finer details that are rarely talked about and it's not always clear what is being referred to. Just take the below as an example, I'm not picking on LBSA, there are others that are affected, like Shoto, Navitas and others, probably all that use the seplos even though the hubble seems to exhibit similar behavior.

Here they guarantee 70% capacity after 7000 cycles @ 100% DoD etc. etc. this is where accurate cycle count will be important.

Their general warranty page then gets a little more confusing as they talk about cycles vs cycles on bms display, already showing a discrepancy. They've halved the cycles on the display which seems ok at first, but this should be 1/5 for 100%DoD battery because at 9000 cycles on the display you are actually at 1800 'real' cycles at 100% DoD if it is counting every 20% as a cycle... that is a massive difference. They also don't address the capacity guarantee.

N.B.: Take note of the last point on the list above... DO NOT CHANGE YOUR BMS PARAMETERS or it will void your warranty.

Good that you have all of your data to back yourself in the unlikely event of a warranty claim, it's always best to have as much info as possible.

4 minutes ago, Sc00bs said:

So I found this integration for the Pace BMS https://github.com/Tertiush/bmspace which I believe was put together by @tertiuscpt 

I have been wondering if it is going to be possible to get it running on an ESP32 with ESPhome using the RS232 interface on the battery, as my HA box is miles away from my batteries. 

Also, sorry if this questions seems obvious but if I want to connect to the RS232 interface, can I connect directly to the batteries RS232 port using the ESP32 as that has a UART Bus protocol or do I need to get something else? 

This is way over my head @Sc00bs, sorry. I have only set up basic RS485-USB comms using supplied software on my PC, nothing more than that.

3 hours ago, Sc00bs said:

So I found this integration for the Pace BMS https://github.com/Tertiush/bmspace which I believe was put together by @tertiuscpt 

I have been wondering if it is going to be possible to get it running on an ESP32 with ESPhome using the RS232 interface on the battery, as my HA box is miles away from my batteries. 

Also, sorry if this questions seems obvious but if I want to connect to the RS232 interface, can I connect directly to the batteries RS232 port using the ESP32 as that has a UART Bus protocol or do I need to get something else? 

Looks like I am going to need a TTL-RS232 converter, will see if I can work the rest out 🙂 

5 hours ago, jumper said:

Looks like the BSL might be a Pace BMS, it's not listed with the seplos batteries: https://solar-assistant.io/shop/products/pace_rs232

The fact that you they access the BMS on the BSL's using PBMS Tools may be a clue, lol. 

@jumper So you accessed using the RS485 port on your PC?

That is interesting and will make my life easier as I already have an RS485 board for an ESP32

Edited July 10, 20232 yr by Sc00bs

1 hour ago, Sc00bs said:

@jumper So you accessed using the RS485 port on your PC?

Yes, I access using the USB port on PC with USBtoRS485 converter wired to a RJ45 plug into the RS485A port on the seplos BMS. I'm not sure if it works on the Pace BMS.