charging and travel times in our Supertest

The MG 5 Extended Autonomy is meant to be versatile. He still needs to walk the road in peace. This is the subject of this probe which is part of Supertest.

The Supertest, what is it? This is a new test format of Automobile-Propre.com that follows the first impressions collected during the first administration. It is a deepening worthy of the greatest speleologists, carried out over long distances and always on the same route according to a precise protocol that is intended to be repeated with each new one. We started this exercise with plug-in hybrids and now we are also applying an evolution dedicated to electrics. The goal? Gather comprehensive information from a long-term test in real conditions!

Feel free to suggest other questions in the comments for this new section!

Having gone through our various test benches, the MG 5 shows a relative excellence. With its 57 kWh battery, the break promises a mixed autonomy of 358 km on our usual loop and 255 km of autonomy on a long journey exclusively on the motorway. It is correct and that puts it in the good average of the segment. However, it has a maximum charging power of 87 kW in fast terminals, which is significantly lower than the competition. What is destroying its diversity?

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Test – MG 5 Extended Autonomy: consumption, autonomy and measured performance in our Supertest

MG 5 recharging curve: a useful full of 35 minutes

With such a recharging power, the MG 5 promises a full charge from 0 to 80% in 40 minutes with its peak announced at 87 kW of power. A power that exceeds a little because during our recharging and acquisition curve test, we recorded a maximum of 90 kW. It is placed at the same level as the MG ZS EV, which fails to reach the indicated value of 92 kW.

From the start of charging, the power rises to its maximum and forms a small plateau up to 40% charge, when a first step is felt. The curve gradually falls at 80% load, where the power is 52 kW. This is correct in absolute terms, but also in relative terms, because it represents almost 42.2% lower than the maximum power announced. By way of comparison, a Renault Megane e-Tech has a reduction of 68.7%!

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Renault Megane e-Tech test: charging and travel times from our Supertest

The curve is not so bright then, because the power drops quickly, reaching 21 kW at 90% and 7 kW at 95%. You have to wait 11 minutes to reach 90% and the full tank to 100% will be executed in 1h13. But again, it’s better than what we observed in the MG ZS EV. Also, note that the break shows a capricious compatibility with Efacec terminals in the Allego network, but to a lesser extent compared to ZS. With other operators, however, there is no problem, even with a Tesla Supercharger!

Typical recharge curve
10 to 80% 80 to 100% 10 to 100%
Charging time (in min) 35 38 73
Gained autonomy (in km) 178 51 229

Autonomy recovered: 158 km in 30 minutes

In a long journey on the motorway exclusively, we noticed a total autonomy of 255 km, or 178 km of “useful” autonomy with a full tank of 10-80% as it is always recommended to do. But the autonomy gained through recharging time is what interests drivers the most. So here is a table showing these values ​​in 15-minute increments from a 10% SoC. A simple routine stop at the station while taking time to drink coffee saves almost 90 km of autonomy.

Autonomy regained
Charging time (in min) 15 30 45 60
Gained autonomy (in km) 89 158 201 216

How much do MG 5 refills cost?

Apart from Total Énergie and a few other less current operators, charging per minute is no longer relevant on motorways. Ionity recently changed its tone, simplifying the calculations, although that did not always prove to be the most attractive solution. Either way, let’s do it. During our various tests, the MG 5 consumed an average of 43.2 kWh according to the display screen of the terminals between 10 and 80%. In Ionity, the useful load represents €29.81 (€0.69/kWh). In Fastned, the note falls to €25.49, while it takes €19.01 in Electra.

On this average journey, we made three top-ups for a total cost of €47.1 excluding operator fees. At the Darvault service area (430 km away), where we last recharged, this represents a cost of €10.95/100 km. Depending on the solution chosen to find the start of the SoC, this will bring the total cost price between €11/100 km (charging at home) or €13.30/100 km (for example charging the Electra). Remember that AC charging is made easier with a power of 11 kW as standard.

Route planner: no on-board solution

The latest addition to the range, the MG 5 still doesn’t offer a route planner. This is really the only real flaw in this, because drivers should do a careful calculation before starting and trust their estimates. Otherwise use applications like ABRP or Chargemap, both of which show similar predictions. For this 500 km journey, both systems provide three different stations for a 1h10 recharge in total.

For our part, many solutions are available to us. The first is to follow one or other of the applications by planning our usual stops (Fastned station in Saint-Ambreuil, Ionity stations in Maison-Dieu and Darvault). We also thought of a more daring roadmap, which would allow us to reach the Lochères area on a full tank, with almost 3% battery left on arrival. Ambitious, what saves us a total of 5 minutes cooldown.

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ABRP and OBD2 box: the ideal solution for your long journey in an electric car?

In the end we decided to make three stops, pushing the first to the Electra station in Beaune. A new intermediate solution, which greatly facilitates travel in the other direction. In the usual 4h20 drive, we add 55 minutes of recharging in total. With our flat rate of 4 minutes per stop (evolution time and launch / recharge stop), the total time for this 500 km journey amounted to exactly 5h27. This is finally what we should expect from a compact electric station wagon with a battery of less than 60 kWh and, here it becomes more interesting, faster than a MG ZS EV.

What is Supertest?

Lovers of numbers and allergic to official data sheets, Supertest, the new test format of Automobile-Propre, is made for you, bringing the data collected during the test to real ones. conditions and according to a transparent and precise protocol. We will add them on Wednesday after publishing the second part dedicated to MG 5 in our summary article allows the comparison of the values ​​detected in the tested models, which will make all the values ​​in the header.

If you want to go further, do not hesitate to consult our tests and exchange with the community in our discussion forum.

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