SoC versus Capacity

2 comments started 2023-10-30 last 2023-10-31
GivEnergy ProductsBattery
P
#1 pacemaker

Hi All

9.52 kWh battery, AC coupled

Finally for first time in a long long while - last night my battery hit 5% where it stopped discharging, I effectively exhausted it.

Overnight I charge from grid to 100%, so last night it charged 95% to get there, at 8.4 kWh imported.

Based on my maths, that looks like I have 8.8 kWh capacity at 100%. I've only had it since January, that can't be degradation can it? I'm still on 3007 so none of the recalibrating happening that came with 3008/3009.

Anything I can check or do?

G
#2 geoffreycoan

pacemaker you almost certainly need a firmware upgrade and the battery recalibrated as the soc has been measured wrongly on the older firmware (or never calibrated in the first place)

GivEnergy support if there isn’t an upgrade button showing in the portal