July 31, 20242 yr Hello My installer recently updated the FW on my Volta Stage 1 batteries, and (now that we had a sunny day in CT) I'm seeing some slightly strange behaviour. I would appreciate it if someone might share if they're seeing the same thing, and whether it's an expected change. Previously, on a sunny day, the batteries would reach 100% and then the Production power would drop away to match the house requirements: After the update, the batteries reach 99% (never 100%) and keeps drawing all available Production power: I chatted with the installer who told me that Volta's very rarely reach 100% and tend to get to 99% and float there.This is not in line with what I've seen from my batteries in the year and a bit I've had them. Also, I do't _think_ drawing all available production qualifies as floating, but perhaps I'm misunderstanding. I took a look at the BMS info, but I don't really know much about how to read it yet. I only recently got the cable (I am confused by the very high cycle count after 14 months...). If anyone might have any thoughts on this behaviour, I'd appreciate your thoughts. Is it just how the new FW behaves? Maybe the FW update was supposed to be accompanied by changes to the inverter settings? What happens to that extra power? Does the BMS just offload it somehow? Is it possible this could be damaging my batteries? If i were to get one of those meters where you feed back excess power into the grid, I guess this current setup would never have any excess power since the batteries grab everything they can. Thanks very much Edited July 31, 20242 yr by splunker tidying up
July 31, 20242 yr The battery is not full that's why it keeps charging. The 2 graphs you provided have different starting SOC of the batteries so in the first picture, it got full faster. I don't think you have anything to worry about.
July 31, 20242 yr Author 13 hours ago, phidz said: The battery is not full that's why it keeps charging. The 2 graphs you provided have different starting SOC of the batteries so in the first picture, it got full faster. I don't think you have anything to worry about. Thanks @phidz. Ya it never reaches 100%, despite there being more than enough power coming In. It's not the first time it's happened since the update. How does the starting SOC influence the reaching of 100%? Thanks again Edited August 1, 20242 yr by splunker
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