MG5 Battery SOH on Car Scanner

[Alb]

Out of idle curiosity, I did a quick check yesterday:

The car is 3Yrs & 7Mths old so when do you think it's going to make the first drop?

 

[Gomev]

Amazing it hasn't already. Whatever you are doing it's working.

 

[Jomarkh]

This my last SOH reading.

 

[MickeySw]

Out of idle curiosity, I did a quick check yesterday:


The car is 3Yrs & 7Mths old so when do you think it's going to make the first drop?

Two thoughts cross my mind
1) Whatever you doing to preserve SoH is working

2) if it’s too good to be true…
I would do a battery capacity calibration charge and take note of the power used by the EVSE during the whole procedure..

 

[Jaumg]

Two thoughts cross my mind
1) Whatever you doing to preserve SoH is working

2) if it’s too good to be true…
I would do a battery capacity calibration charge and take note of the power used by the EVSE during the whole procedure..

This will give a strange result without taking into consideration charging losses, unless anyone knows exactly how to work them out

 

[MickeySw]

This will give a strange result without taking into consideration charging losses, unless anyone knows exactly how to work them out

A successful battery capacity calibration will re-calculate SoH.

Agreed, taking note of the EVSE’s consumption is just a rough guide, not an exact science.

 

[ayres]

Which app is this using? Got my service in 2 days so be interested to compare the readings. Last reading was 93% so hoping it hasn’t dropped to much from that.

 

[Alb]

The App is called Car Scanner:

Car Scanner ELM OBD2 - Apps on Google Play

Trip computer+car diagnostic tool with widest variety of features and dashboard!

play.google.com

Not sure about Apple but I'm sure they will have a version too.

 

[Jaumg]

Which app is this using? Got my service in 2 days so be interested to compare the readings. Last reading was 93% so hoping it hasn’t dropped to much from that.

You'll also need a compatible ODB II dongle. Searching the forum will bring up some recommendations

 

[elenuial]

Hello.
I am seeing some weird readings with my car. At full charge (100% on the display) I get SOH at 98% (ok for a 2 year 28000 miles MG5 LR), but I don't understand why does it show SOC 92.1% and SOC display 94.73% if the car is fully charged and showing 100% on the dash.
Thanks

 

[MickeySw]

I don't understand why does it show SOC 92.1% and SOC display 94.73% if the car is fully charged and showing 100% on the dash.

Have you selected the correct profile?

 

[kevin ellard]

Have you selected the correct profile?

As a matter of interest - what do we think is the correct profile for a MG5 Trophy?

 

[Joe Boatman]

My 2021 MG5 Exclusive 53kWh battery is 98% after 30,000 miles

 

[elenuial]

Seems like in this other thread, they mention that the difference has to do with full battery capacity vs usable one.

Thread 'SOC different between car and OBDII scanner report'

Apr 27, 2024

Having finally resolved exactly why I could not see any results using Car Scanner Pro and OBDII dongle (I had selected the wrong profile in the app!!) I now see a strange anomalous difference between the car's own display and the data in the app.

Specifically, the car shows my State of Charge as 100% (it's just finished charging) but the app shows it as 95% or less. Anybody any idea why this difference?

I should perhaps add that battery state of health is shown as 98.4%, which it has been since its first service more than 12 months ago.

TIA.

• emmrecs
• battery charging electric mg5 scanner soc
• Replies: 29
• Forum: MG5 EV Forum

 

[Wibble]

Where is the OBD port?

 

[Alb]

Under the dash to the left of the steering wheel.

 

[deviousrich]

Just got myself a dongle, daft questions. How do you see those dashboards shown in this thread?

I've applied this car profile but can't see dashboards that show those battery settings?

My car is the non facelift mg5 long range

 

[MickeySw]

What dongle are you using? Does it connect to the phone and the car?

 

[deviousrich]

Sorry I should have said. It's a cheep bluetooth dongle. I do get some stats coming back and if I go into all sensors I can see soh for example, but I don't have anything on the dashboard page.

I think i can make a dashboard, but the ones shown seemed very nice and I couldn't see them anywhere?

 

[Gomev]

Sorry I should have said. It's a cheep bluetooth dongle. I do get some stats coming back and if I go into all sensors I can see soh for example, but I don't have anything on the dashboard page.

I think i can make a dashboard, but the ones shown seemed very nice and I couldn't see them anywhere?

I think I made my own dashboard by adding different items to it in the Car Scanner app. Long time since I set it up so possibly I'm thinking of something else.