Odd battery behaviour

4 comments started 2023-09-18 last 2023-09-18
GivEnergy ProductsBattery
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#1 Dean

My battery ran out at approximately 23:00 with just 6% charge left. The house load was about 150w at the time which then began to be drawn from the grid as expected. What I did not expect is the battery charge percentage to then mysteriously rise up to 12% without charging (no charge shown on graph) by 23:55. My charge period is set to 00:30 to 04:30. Anyone have any ideas ?. Thanks

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#2 TX200

Dean yes, the battery wasn't as empty as it thought it was. The percentage aka soc got corrected after the inverter was idle for a bit.

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#3 MikeCM8

i had exactly the same case last night

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#5 Dean

Okay, still at a loss to explain the sudden move of charged state by 6% upwards when it reaches its low point, with no charge drawn. To me it feels like the battery has not been that low for many months and as such incorrectly evaluated the state of charge for some inexplicable reason. Something it has not done at all with other states of charge.
I'll leave this down to a bug right now, but will monitor and raise with support if it repeats, however as yours has done the same Mike, seems like it may be a firmware bug