Maximum SOC bei LFP?

1

Dear Betrium Team,

Would it be possible to incorporate a feature in a future version of Watchmon to limit the state of charge (SOC)? Specifically, I am suggesting a function that allows setting a maximum SOC (e.g., Max SOC = x), which would only be active when a digital input is switched.

The reason for this request is that maintaining high charge levels in LFP batteries over extended periods can be detrimental. My battery has a capacity of around 70 kWh, and during the summer, it rarely gets fully discharged. I believe this feature could also be helpful for many other users.

Thank you for considering this request!

https://iopscience.iop.org/article/10.1149/1945-7111/ad6cbd/pdf

2

Hi thedoctor9,

You can actually already do this with this switch, you can simply turn it on when you want, and turn it off when you don’t

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I would advise against this though. You can only infer SoC on a cell up near the top of charge, so you can only balance up there, and your SoC will drift without recalibrating at the top (when balance is done)

3

Thank you for the information! I have already found the switch, and that’s why I’d like to connect it to a switch input. This way, I could automate a full charge once a week or as needed when the car’s battery is low. I’m using Loxone for home automation.