Level 2 Charging Dips

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just want to add my experience here as well. look at this curve. noticed this the other day. has only happened once

1631279520619.png


I didn't really think much of it because I see this most regularly.

1631279658467.png
First graph looked like some kind of slow degradation/recovery. Recovery phase seems pretty sharp?. Might be what was suggested with cell rebalancing and when that process is done, back to full charging power.
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ncaadam

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First graph looked like some kind of slow degradation/recovery. Recovery phase seems pretty sharp?. Might be what was suggested with cell rebalancing and when that process is done, back to full charging power.
I had a theory that it was correlated with our AC & furnace running. We have a smart thermostat so i was going to try and line up the timestamps. However, as you can tell, the timestamps aren't particularly useful on the Grizzl-E portal ?
 

theo1000

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Interesting. I wonder if that could be a function of the AC compressor kicking on. At start up AC compressors have high amp draw and maybe it is drawing from the EVSE rather than the HV battery. Doesn't make sense though as it is so regular. Don't recall seeing anyhting like that on my Voly or I3 or Etron.
 

ncaadam

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Interesting. I wonder if that could be a function of the AC compressor kicking on. At start up AC compressors have high amp draw and maybe it is drawing from the EVSE rather than the HV battery. Doesn't make sense though as it is so regular. Don't recall seeing anyhting like that on my Voly or I3 or Etron.
Yea. it was kinda a half-assed theory really. We do have a two stage furnace and stuff that would show a gradual increase in usage, but we have plenty of spare amperage in our system. I highly doubt this is the culprit.

Much more likely the car :)
 
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We really need to have an OpenMachE project on GitHub or something. Too many things to fix and understand! ?
 


ncaadam

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Yah! the car AC not home one. It kicks on every so often to cool the battery down...
lol makes way more sense. my idea was our home AC :oops:
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