Predbat gets discussed a lot on this forum and there’s a mini ‘support group’ on https://community.givenergy.cloud/d/3696-first-night-live-on-predbat/ (1600 posts and counting)

Gary does Solar’ on YouTube has just released an interview with Trefor Southwell (author of Predbat) where he gives a great introduction to Predbat, how it came about, what it needs, etc

https://youtu.be/cvfqORGsZ0g