Decreasing Range of MG4

[siteguru]

Regarding range, EVM (Electric Vehicle Man) did a video on this topic recently on YouTube. His general rule of thumb is ..

Average expected range is WLTP minus 25%
Summer: add 20%
Winter: subtract 20%

Example:
WLTP - 280 miles
Average - 210 miles (70 miles is 25% of 280)
Summer - 252 miles (42 miles is 20% of 210)
Winter - 168 miles (ditto)

If I transpose this to the SE SR:
WLTP - 218 miles
Average - 163 miles (55 miles is 25% of 218, with rounding)
Summer - 196 miles (33 miles is 20% of 163)
Winter - 130 miles (ditto)

Seems a reasonable RoT to go by.

Obviously degradation may have a further impact.

 

[gary333]

My son is about to purchase a 6 year old Hyundai Ioniq which are renowned for battery efficiency, well into the 4.. it will be interesting to compare figures once he gets some miles on it. Its a 38kWh battery, 6 years old and done c34k miles. SoH battery check says 100% !

My last car was an Ioniq 38. Over more than 55,000 miles it averaged about 4.5mi/kwh. They can easily get over 5mi/kwh average in summer (not at motorway speeds though).

On my MG4 the average across the last 25,000 miles is around 3.5mi/kwh.

Unfortunately, charging speed is problematic on the Ioniq 38, with it very rarely going above 42Kw. However, if you are keeping it under 200 miles for most journeys they are brill and IMO much better all round car than the MG4.

The MG4 does though shine in one key field, charging speed. When I'm doing 400-500 miles in a day, the MG4 is much less hassle than the Ioniq, which was a pain in the backside. If I wasn't doing longer journeys I'd have chosen the Ioniq every time.

 

[T1 Terry]

Regarding range, EVM (Electric Vehicle Man) did a video on this topic recently on YouTube. His general rule of thumb is ..

Average expected range is WLTP minus 25%
Summer: add 20%
Winter: subtract 20%

Example:
WLTP - 280 miles
Average - 210 miles (70 miles is 25% of 280)
Summer - 252 miles (42 miles is 20% of 210)
Winter - 168 miles (ditto)

If I transpose this to the SE SR:
WLTP - 218 miles
Average - 163 miles (55 miles is 25% of 218, with rounding)
Summer - 196 miles (33 miles is 20% of 163)
Winter - 130 miles (ditto)

Seems a reasonable RoT to go by.

Obviously degradation may have a further impact.

The 51 gets 320km to a charge on average, in a strong headwind and no tailwind on the return, I squeaked home on 200kms, but the estimated battery capacity was around 5% from memory ......
The claimed dreamland figure is 408kms

T1 Terry

 

[siteguru]

320 is 78% of 408, so the RoT seems to follow, thereabouts.

But remember that these are all averages .. specific journeys will give different results as the conditions will never be consistent.

 

[mikgle]

My last car was an Ioniq 38. Over more than 55,000 miles it averaged about 4.5mi/kwh. They can easily get over 5mi/kwh average in summer (not at motorway speeds though).

On my MG4 the average across the last 25,000 miles is around 3.5mi/kwh.

Unfortunately, charging speed is problematic on the Ioniq 38, with it very rarely going above 42Kw. However, if you are keeping it under 200 miles for most journeys they are brill and IMO much better all round car than the MG4.

The MG4 does though shine in one key field, charging speed. When I'm doing 400-500 miles in a day, the MG4 is much less hassle than the Ioniq, which was a pain in the backside. If I wasn't doing longer journeys I'd have chosen the Ioniq every time.

Yes he's aware of that but doesn't do many long trips. TBH I rarely have more than 50kW charging speed on my mg4 on the rare occasions I have used public chargers, however we're doing the North Coast 500 this summer so will get to use a few!

 

[T1 Terry]

320 is 78% of 408, so the RoT seems to follow, thereabouts.

But remember that these are all averages .. specific journeys will give different results as the conditions will never be consistent.

This is the regular trip down to Adelaide, 110km/h freeway for most of the trip and a lot of hills, the Gen 2 Prius would scream the motor rpm if we tried to maintain speed up the hills, the 51 doesn't seem to notice them much, makes the trip so much nicer, we do drop back to 90km/h for the first big climb, about 3/4 way up it drops back to 90km/h anyway when it goes through the tunnel, so not a big deal

T1 Terry

 

[gary333]

Yes he's aware of that but doesn't do many long trips. TBH I rarely have more than 50kW charging speed on my mg4 on the rare occasions I have used public chargers, however we're doing the North Coast 500 this summer so will get to use a few!

Thankfully I near enough always get between 135-142kw on mine after being connected to charger for a minute or so for the bulk of the charging curve.

Unplugged this morning after getting 32.77kWh in 15 mins. Equates to average rate of 131kw for session. Makes these longer journeys much more pleasurable.

I had time to waste yesterday so I charged to around 98% on a Supercharger (from I think under 20%). It took 44 minutes take in 50.68kwh so even accounting for me going to the higher states of charge I am pleased it still averaged 69kw overall.

 

[Rolfe]

Yes he's aware of that but doesn't do many long trips. TBH I rarely have more than 50kW charging speed on my mg4 on the rare occasions I have used public chargers, however we're doing the North Coast 500 this summer so will get to use a few!

Most of the chargers on that route are only 50 kw anyway.

 

[mikgle]

Most of the chargers on that route are only 50 kw anyway.

Well we won't be rushing anyhow.. know of a decent B&B in Ullapool?

 

[siteguru]

There are lots .. none will be particularly cheap though (depending on your frame of reference).

 

[T1 Terry]

Well we won't be rushing anyhow.. know of a decent B&B in Ullapool?

You people have such strange names for places, it's like you are half a world away ....

T1 Terry

 

[mikgle]

There are lots .. none will be particularly cheap though (depending on your frame of reference).

Is anything particularly cheap in Scotland?

 

[mikgle]

You people have such strange names for places, it's like you are half a world away ....

T1 Terry

Blame the vikings..

 

[T1 Terry]

Is anything particularly cheap in Scotland?

You'd have to be Scottish to know the "I no be paying for that" rules to get it at a better price ..... speaking in a language no one but another Scott would understand it probably part of it as well .... a bit like the Masons I guess

T1 Terry

 

[T1 Terry]

Blame the vikings..

Seriously, after all these yrs you can think of better names for places?

T1 Terry

 

[siteguru]

You people have such strange names for places, it's like you are half a world away ....

T1 Terry

Pot. Kettle. Black?

 

[Rolfe]

Blame the vikings..

Paradoxically, the places where Gaelic is commonly spoken mainly have Norse place-names, because they were Viking colonies when the places were being named, whereas places where English is the norm are absolutely crawling with Gaelic-origin place-names.

 

[Rolfe]

Well we won't be rushing anyhow.. know of a decent B&B in Ullapool?

I was sleeping in my car, so no. Saves me a bloody fortune, not to mention the freedom.