Anyone got a Battery SOC Algorithm ?

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You got me interested, so I did a bit of Googling.

This is interesting, but it might be a little complex to code! https://www.researchgate.net/publication...easurement

Thanks - I'll take a proper look at that tomorrow
I also searched and came up with a number of University projects/papers with various algorithms to play with 
I was secretly hoping that someone would have coded it all up into a neat little Node-Red flow