kWh Result after 1000 miles MG4 Trophy

[Paul V Smith]

After traveling 500 miles on the motorway, speeds up to 70mph and 500 miles urban driving 20-60mph I have recorded an overall average of 3.7kWh.

I travel 100 each week to work which is costing me just over £2, getting 4-4.2 miles per kWh @8.5p on my overnight Octopus Tariff.

Therefore I get around 235 mile range on the motorway and around 256-265 locally with my Trophy.

My old VW ID.3 gave me very similar results. How are you all finding your MG4, are you getting better or worse.

 

[OJEastwood]

Are those figures the Miles per kWh?

 

[wiz043]

Are those figures the Miles per kWh?

Yep....3.7kw x 51kw usable (approx)= 189 miles average range if the car is a SR model.

 

[Paul V Smith]

Are those figures the Miles per kWh?

Yes miles per each kWh

 

[Paul V Smith]

Yep....3.7kw x 51kw usable (approx)= 189 miles average range if the car is a SR model.

I get 256-265 ish miles driving local and around 235 on the motorway, with my Trophy 64kW battery

 

[Paul V Smith]

Yep....3.7kw x 51kw usable (approx)= 189 miles average range if the car is a SR model.

I have edited my thread, hope it makes sense

 

[wiz043]

I have edited my thread, hope it makes sense

Of course it makes sense.
Sorry ....wrong assumption re model.

 

[OJEastwood]

Yes miles per each kWh

Thanks, just wanted to double check. It also might help those new to EV terminology and whatnot.

Those numbers aren't too bad at all though!

 

[BugEyed]

I get 256-265 ish miles driving local and around 235 on the motorway, with my Trophy 64kW battery

Sorry to nit pick, but do you actually get 235 miles between charges on the motorway? @3.7miles/kWh that's the whole 64kWh of the battery including the inaccessible buffers and assuming that you run from 100% to 0%. On my SR I am getting 3.6miles/kWh on the motorway (lower gearing, no active grille, less efficient battery tech or just worse driving?) but that's only 170 miles (under 10% battery remaining) at most until serious range anxiety kicks in.
Previously with less than half the battery in a LEAF30 (about 22kWh remaining) the greater efficiency (4.4 miles/kWh) meant I could get 90 miles before similar anxiety. I'm unsure why the MG4 efficiency is so poor - the PTC heater and wide tyres are my current guesses (I am ignoring the rear undertray issue).
Now that it's winter a grille block will be on the agenda if the car isn't rejected for the current faults.

 

[Paul V Smith]

Sorry to nit pick, but do you actually get 235 miles between charges on the motorway? @3.7miles/kWh that's the whole 64kWh of the battery including the inaccessible buffers and assuming that you run from 100% to 0%. On my SR I am getting 3.6miles/kWh on the motorway (lower gearing, no active grille, less efficient battery tech or just worse driving?) but that's only 170 miles (under 10% battery remaining) at most until serious range anxiety kicks in.
Previously with less than half the battery in a LEAF30 (about 22kWh remaining) the greater efficiency (4.4 miles/kWh) meant I could get 90 miles before similar anxiety. I'm unsure why the MG4 efficiency is so poor - the PTC heater and wide tyres are my current guesses (I am ignoring the rear undertray issue).
Now that it's winter a grille block will be on the agenda if the car isn't rejected for the current faults.

When I used the motorway I did a 200 miles stretch and topped up the battery by 20% before getting to my final 230 mile destination, it showed I had 36 miles left on the clock. I would never take the battery down to near zero.

 

[siteguru]

But what was the starting SoC (%) and the SoC (%) before you added 20%? That difference times the usable range of the battery gives you the kWh used. 200 / used kWh = miles per kWh.

Example:
Start = 100%
End = 10%
Used = 90%
kWh used = 0.9 x 61.7 (for the LR battery) = 55.53 kWh
Efficiency = 200 / 55.53 = 3.6 miles per kWh

And if you had 10% SoC remaining and 36 miles range showing before top-up, that all ties in.

Edit: no, I didn't manipulate the example ... I picked random figures and it actually just worked out that way.

 

[Paul V Smith]

But what was the starting SoC (%) and the SoC (%) before you added 20%? That difference times the usable range of the battery gives you the kWh used. 200 / used kWh = miles per kWh.

Example:
Start = 100%
End = 10%
Used = 90%
kWh used = 0.9 x 61.7 (for the LR battery) = 55.53 kWh
Efficiency = 200 / 55.53 = 3.6 miles per kWh

And if you had 10% SoC remaining and 36 miles range showing before top-up, that all ties in.

Started with 100% home charged, not sure what percentage was remaining after 200 miles. Possible around 14-17%. I do this run a few times a year so will check next time.

 

[tsedge]

Efficiency is correlated with speed, so if you want more miles per kWh or further range, drive more slowly. This makes a much bigger difference in EVs.

The MG4 isn’t the best or worst for efficiency. Just saw a video review of a Ford Mustang Mach-E (£50k+ car with 98kWh battery) where the owner is struggling to get much over 200 miles in range!

 

[Paul V Smith]

Efficiency is correlated with speed, so if you want more miles per kWh or further range, drive more slowly. This makes a much bigger difference in EVs.

The MG4 isn’t the best or worst for efficiency. Just saw a video review of a Ford Mustang Mach-E (£50k+ car with 98kWh battery) where the owner is struggling to get much over 200 miles in range!

Ouch, but clearly a wealthy person, who probably don't care.

 

[siteguru]

Petrol Ped has one as a loaner and he implies that he's getting ~300 miles from a full charge. Assuming a usable capacity of 75 kWh, and that's a 90% usage (100% to 10%) that would give 67.5 kWh used. So 300 miles would give an efficiency of 4.4 miles per kWh

 

[Dan C]

After traveling 500 miles on the motorway, speeds up to 70mph and 500 miles urban driving 20-60mph I have recorded an overall average of 3.7kWh.

I travel 100 each week to work which is costing me just over £2, getting 4-4.2 miles per kWh @8.5p on my overnight Octopus Tariff.

Therefore I get around 235 mile range on the motorway and around 256-265 locally with my Trophy.

My old VW ID.3 gave me very similar results. How are you all finding your MG4, are you getting better or worse.

I’ve been finding I’ve averaged 3.3miles KwH over the the last 700miles, most of my journeys are only 1 or 2 miles which seam to effect the miles per KWH rate badly ( as low as 2 miles per KWh, this is because the car is trying to heat the cabin rapidly to behind with, on longer trips once the cabin reaches its set point temperature the heater can ease off and efficiency improve )

I’ll be curious to see what the efficiency is like in mild weather / summer, it’s a shame not many other cars can match the Kona / Niro / model 3 facelift efficiency ratings but they use all heat pumps.

 

[BrenEV]

Petrol Ped has one as a loaner and he implies that he's getting ~300 miles from a full charge. Assuming a usable capacity of 75 kWh, and that's a 90% usage (100% to 10%) that would give 67.5 kWh used. So 300 miles would give an efficiency of 4.4 miles per kWh

Where did he say that ?

In his YouTube video he stated he did a 160 mile journey which used 70% of the battery.

 

[siteguru]

Maybe I misheard.

 

[BrenEV]

Maybe I misheard.

Came across a bit accusatory there, sorry mate.

 

[wiz043]

Where did he say that ?

In his YouTube video he stated he did a 160 mile journey which used 70% of the battery.

That's around 3.75 mpk which is pretty good.