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Topup / phantom charge

Discussion in 'The UK and Ireland' started by VanillaAir_UK, May 6, 2020.

  1. VanillaAir_UK

    VanillaAir_UK Moderator UK and Ireland

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    Following on from a stale old thread, I thought that I would follow on here regarding phantom top up charges.

    When I originally posted, I had thought that it was topping up to keep battery at set charge limit. However, today I did a solar PV topup for a couple of hours to 55% SOC. That completed at 14:57 / 55%. I then reduced the charge limit to 50% to specifically prevent these little top ups previously noticed when solar may not have covered the full power draw. So it was my surprise that at 15:31 I get a charge complete at 55% notification - oddly no associated charge start notification. It must have been quite brief as my 5 minute data logger failed to detect it at 15:30 but it draw enough to make a small blip on the 5 minute average 15:30-15:35.

    Double checking app and TeslaFi, charge limit was as expected 50%. So not a case of keeping battery topped up to 55%.

    So what's going on then? The only thing I can think of is some form of pre conditioning kicking in, but with cabin overheat controls turned off, so you might think that it wouldn't do any form of conditioning/cooling.
     
  2. NorfolkMustard

    NorfolkMustard Active Member

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    Topping up its 12v perhaps.
     
  3. VanillaAir_UK

    VanillaAir_UK Moderator UK and Ireland

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    Follow on, just checked TeslaFi, no charge notification but 15:31 coincided with a sleep / idle transition. It had only been snoozing for 4 minutes having previously been idle for 29 minutes since end of expected charge.
     
  4. VanillaAir_UK

    VanillaAir_UK Moderator UK and Ireland

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    Hmmm, I wonder if that would explain sleep/idle cycling and may be indicative of a 12v battery issue that requires frequent topups. Oddly, this only happens during several daylight hours. It gets a good old sleep at night although it was a bit of an insomniac last night but I guess it was busy playing lets download 2020.12.11.2.
     
  5. NorfolkMustard

    NorfolkMustard Active Member

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    Looks like mine was doing similar last night - charging started at 1am and finished around 4:45

    then it took a slurp of power at 5:45 and another slightly longer one just before 7am

    [​IMG]
     
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