Feature request: Show stats on battery efficiency
I appreciate the data we on Solar man and, with the new dongle project, I'd appreciate nerdy stats about things like the battery roundtrip efficiency.
I also want to know what efficiency should be expected, and maybe the inverter could log a warning if the efficiency is well below what the expected chemistry should be getting. E.g. help a customer know if the setup is wrong or the battery could be quite poor. It'd also be good to see inverter manufactures maybe share and publish stats about which batteries work better than others.
For example, my current Dyness setup doesn't seem to be living up exceptions for LiFePO4, or LFP (shorter)... I'm only getting about 88%. I would've expected 91%, given many articles reference 92% as the round trip efficiency for LFP. Minus 1% more for the ~1.5m 25mm2 DC wire and fuse, and 88% is still 3% less than I thought :-/
Maybe share this with the new developers as a rough way to calculate (python code example). E.g. for my month so far:
As you can see form the above, I do factor in SoC and capacity given that's some charge remaining that was not yet discharged.
Based on monthly reading from the site:
