A drop in mileage on 100% charge

[Muffin]

I have a mg zs ev trophy long range 2023 have been to my first service
Since service have put a full charge in 100% but have notice only 251 miles has come up on dashboard. Its is usually 275 have I a problem with the battery

 

[pollenface]

My guess is that the software may have been updated to show a better estimate of your range based on your previous driving behavior.

 

[Muffin]

Mostly on eco and mostly local trips is that the reason

 

[DB Go Rex]

I have a mg zs ev trophy long range 2023 have been to my first service
Since service have put a full charge in 100% but have notice only 251 miles has come up on dashboard. Its is usually 275 have I a problem with the battery

Think of the range on the display (GOM = Guess-O-Meter) not as a sworn blood oath to get those miles or a direct measurement, but similar to a 'distance to empty' display on an ICE car. i.e. there is more to range than just what you have in the tank (temperature, wind, driving style, road types)

 

[pollenface]

Mostly on eco and mostly local trips is that the reason

Fuel/battery range depends on many variables. There's no simple straight forward answer.

Driving style, luggage, other passengers, wind speed/direction, tire inflation, environmental temperature, weather, air-conditioning/heating settings.

 

[Lovemyev]

I have a mg zs ev trophy long range 2023 have been to my first service
Since service have put a full charge in 100% but have notice only 251 miles has come up on dashboard. Its is usually 275 have I a problem with the battery

Reset both of your trip recorders, now what do you get as a predicted milage ?.
“That’s better he said” ?.