EV Charging GuideEV Models & SpecsMG4 Extended Range Charging Guide: Times, Speeds & Tips
MG4 Extended Range Charging Guide: Times, Speeds & Tips
Complete charging guide for the MG4 Extended Range with 77 kWh battery and 135 kW DC charging. Unusual late-peak charging curve analysis, outstanding value proposition, and practical tips.
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MG MG4 Extended Range
Usable battery
74.4 kWh
Max AC
11 kW
Max DC
135 kW
Consumption
14 kWh/100km
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The MG4 Extended Range packs a generous 77 kWh gross (74.4 kWh usable) battery into one of the most affordable electric hatchbacks on the European market. With a consumption of just 14 kWh/100 km, this translates to an impressive estimated range of around 531 km — territory usually reserved for far pricier EVs. The rear-drive MG4 tops out at 11 kW AC and 135 kW DC, making it a well-rounded package for daily commutes and occasional road trips alike.
Charging Guide Mg4
Built on SAIC's MSP (Modular Scalable Platform), the MG4 represents the Chinese-British brand's serious push into the European EV market. The platform was designed from the ground up for electric vehicles, with an ultra-flat battery pack that gives the MG4 a low centre of gravity and surprisingly sporty handling for a budget hatchback. The Extended Range variant sits at the top of the lineup, offering the largest battery and longest range.
What makes the MG4's charging story particularly interesting is its unusual DC charging curve. Unlike most EVs that peak early and taper steadily, the MG4 reaches its highest power relatively late in the charging session — a quirk that affects how you should plan your charging stops. Understanding this curve is key to getting the most out of the car on longer journeys.
AC Charging Times: Home and Public Stations
From a standard 2.3 kW household outlet, a full 10-100% charge of the MG4's 74.4 kWh usable battery takes approximately 32 hours. While not practical as a primary charging method, overnight outlet charging still adds meaningful range thanks to the car's low consumption: 10 hours on a domestic plug yields about 23 kWh, enough for roughly 164 km of driving — a full week of average commuting for many owners.
An 11 kW wallbox transforms the MG4 into a charge-and-forget daily driver. A complete 10-100% charge takes around 6 hours 45 minutes, easily accomplished overnight. For most MG4 owners, this means plugging in each evening and starting every morning with over 500 km of available range — more than enough to make range anxiety a thing of the past. The MG iSMART app lets you schedule charging during off-peak electricity hours.
At public AC stations, the MG4's 11 kW onboard charger makes good use of 22 kW public posts (drawing its maximum 11 kW). An hour of public AC charging adds about 11 kWh, translating to roughly 79 km of range. A typical 3-hour shopping or dining stop yields around 237 km — more than enough to top up for a return journey or extend a weekend trip.
DC Fast Charging: Curve and Performance
The MG4 Extended Range has one of the most unusual DC charging curves on the market. Rather than peaking early, the MG4 ramps steadily and hits its peak of approximately 139 kW remarkably late — around 52% SOC. This is almost the reverse of most EVs, which are already tapering significantly at that point. The power then drops to around 103 kW at 58% SOC and further to about 69 kW as it approaches 80%.
This unusual flat-then-late-peak profile means a 10-80% DC session takes roughly 35 minutes. The practical implication is that the MG4 doesn't punish you as severely for arriving at a fast charger with 30-40% SOC, since it's still ramping up at that point. However, the relatively modest peak of 135-139 kW means it won't match the blistering charge speeds of premium EVs — it trades raw speed for a uniquely consistent mid-range power delivery.
For road trips, the MG4's curve shape suggests a slightly different strategy than most EVs. Instead of the usual "charge from 10% to 50% and go" approach, the MG4 actually delivers its best power between 30-55% SOC. On a long motorway drive, consider charging from 20% to 65% at each stop — you'll spend most of the session in the car's power sweet spot. For a trip like London to Edinburgh (650 km), plan for two stops of about 25 minutes each.
Real-World Charging Tips for the MG4 Extended Range
The MG4 does not have an active battery preconditioning system for fast charging, which means DC charging performance can drop noticeably in cold weather. In winter, try to fast-charge after a sustained motorway drive (at least 30-45 minutes) so the battery has warmed up naturally. The MG iSMART app allows you to precondition the cabin while plugged in at home, saving battery energy for driving.
Keep an eye on MG software updates, as the brand has been actively improving the car's charging performance and features through OTA updates. The MG4's charging curve has already seen minor improvements since launch. Set your daily charge limit to 80% for regular use and reserve 100% charges for days when you know you'll need maximum range.
On the motorway at 120-130 km/h, expect consumption to rise to 18-20 kWh/100 km, reducing real-world range to around 370-410 km. The MG4's rear-drive setup provides entertaining handling but also means the rear tyres wear faster if you exploit the car's surprising agility. For maximum efficiency on longer trips, cruise at 110 km/h where consumption stays closer to 15-16 kWh/100 km, giving you a realistic motorway range of about 465-495 km between stops.
Plan Your MG4 Extended Range Charges with Plan EV Charge
Plan EV Charge accurately models the MG4's distinctive late-peak charging curve, so you can see exactly how power ramps up through the session rather than just relying on average figures. Enter your starting SOC and target to see realistic charge times that account for the MG4's unique power delivery profile — essential for accurate trip planning with this car.
Use the trip planner to map out multi-stop journeys and find the optimal SOC window for each charging session. Because the MG4 charges differently from most EVs, the calculator helps you identify whether a 20-65% or 10-80% strategy works best for your specific route and charger spacing. Compare the MG4 against competitors like the VW ID.3 or Peugeot e-208 to see how its unusual curve stacks up.
Estimate your monthly charging costs by entering your electricity rate and typical weekly mileage. With the MG4's excellent 14 kWh/100 km efficiency, you may be surprised at how little it costs to run — especially if you charge primarily at home on an off-peak tariff. The cost comparison tool shows exactly how much you save versus petrol, making the MG4's value proposition even more compelling.
