How accurate are the "Current Journey" Stats or is my battery goosed

[Mcgrst]

I noticed this earlier in the year and been waiting on long drive to confirm, if those dash stats are correct then my battery has quite a lot less capacity than it should.
The car is a 2023 ZS facelift, short range LFP battery.

On a long run I'm only getting an actual battery capacity of about 46kw which is down from 48.5 last year (which is the earliest I can find a photo off). These were all from 100% charge when setting off.

	Distance (miles)	Efficiency (m/kwh)	pct Remaining	Actual Consumption (KWh)	Effective Capacity
30/09/2024	96.5	3.5	40%	27.6	46.0
30/07/2024	136.4	3.5	16%	39.0	46.4
07/07/2023	127.4	3.5	25%	36.4	48.5

 

[Robf]

Have you balaced battery lately? Lots of info on site if not, just use the search function top right.

 

[Mcgrst]

Yeah, in all those cases the car has been plugged in until it switches itself off.

 

[peterseddon]

Get yourself an OBD-II diagnostic dongle and download eZS app. Plug it into the diagnostic port under the right side of the steering wheel and run the app and it will tell you your battery state of health (SOH) and cell voltages.

 

[Mcgrst]

I went back and compared my calculated actual to the published available battery power and it's only about 5% down. When I put it like that it's not really worth worrying about and I assume the read outs are accurate just got a bit worried for a minute.


I'll check the OBD results but from another thread it's not working properly with LFP batteries.