Maybe you could think about monitoring direct temps at the middlepoint of a pack of 4 batteries ?
If I calculated it correctly there would be 28x DS18B20 nessesary for a 14s8p (or a 15s8p) Pack
For a 13s8p Pack it would be just 24 x DS18B20
With those DS18B20 we can monitor EACH cell and gain a lot of more security and prevent more thermal runs than before. That will give us all a lot of more safetey in our houses.
We can adjust those temp ranges more precisely than before.
But I don’t know how they all can be connected to a single baord to monitor them all and integrate them all in a firmware.
Maybe we could add more support to those DS18B20.
Let’s imagine that someone has more than 1 pack of 14s8p.
Let’s imagine someone has 3 or 4 or 5 of those packs.
That would mean he has x-times 28x DS18B20 (e.g. with 3 packs =3x28=84 DS18B20)
So let’s directly think about a DS18B20-Hub for each pack which could be connected to a Hub-Group
Let’s call them Slave-Hub (28 pcs of DS18B20) and Master-Hub where all the slaves are connected and just the slaves will me monitored.
In face I would only connect a 2wired cable from each Slave-Hub to those Master-Hubs
And all of them would have the abillity to disconnect a whole pack if those temps are too far away from regular temps…
[This question/proposal was first mentioned here: DIYBMS v4 - #5565 by Atratus
- Moderator (RW)]