MG 4 vs Renault Megane E-Tech: charging compared
Charging curves overlaid, time-to-charge at every common UK charger speed, and per-network cost — modelled on each car's actual charging behaviour.
At a 150kW UK rapid (10% → 80%): the MG 4 finishes in 30m; the MG4 is within a minute.
The MG4 Long Range and the Renault Megane E-Tech EV60 sit in the same affordable C-segment territory and are often cross-shopped by UK buyers looking for £30k-or-less EVs. They charge differently though.
The MG4 peaks at 135kW DC on a 400V battery; the Megane peaks at 130kW. Both tapers are similar, but the Megane benefits from a 22kW AC onboard charger (versus the MG4's 11kW), which makes a real difference at destination chargers and on three-phase home installations. On DC rapid chargers, both finish a 10-80% top-up in around 30-35 minutes on a 150kW unit.
Real-world efficiency is similar (~270Wh/mile for the MG4 vs ~285Wh/mile for the Megane), and at-home costs are nearly identical on time-of-use tariffs. The MG4 has the larger battery (61.7 vs 60kWh usable) and a slightly longer real-world range; the Megane has the more interesting interior design and the 22kW AC advantage if you have three-phase access.
Choose the MG4 for outright cost and range; choose the Megane for cabin design and faster AC charging in specific scenarios.
Charging behaviour
- MG 4
- Renault Megane E-Tech
Time to charge by charger speed
SOC range 15% → 80%. Cells softer where the charger speed exceeds the car's peak DC — higher chargers deliver the same time.
| Car | 7kW | 22kW | 50kW | 100kW | 150kW | 250kW | 350kW | 400kW |
|---|---|---|---|---|---|---|---|---|
| MG 4 | 5h 44m avg 7kW | 3h 39m avg 11kW | 48m avg 50kW | 31m avg 78kW | 29m avg 83kW | 29m avg 83kW | 29m avg 83kW | 29m avg 83kW |
| Renault Megane E-Tech | 5h 34m avg 7kW | 1h 46m avg 22kW | 47m avg 50kW | 30m avg 79kW | 28m avg 83kW | 28m avg 83kW | 28m avg 83kW | 28m avg 83kW |
Public network cost
15% → 80% session at PAYG rates, cheapest 5 rapid networks.
| Network | 4 | Megane E-Tech |
|---|---|---|
| Tesla Supercharger 58.0p/kWh | £23.26 | £22.62 |
| Pod Point 62.0p/kWh | £24.86 | £24.18 |
| Believ 66.0p/kWh | £26.47 | £25.74 |
| SWARCO eVolt 75.0p/kWh | £30.08 | £29.25 |
| Allego 78.0p/kWh | £31.28 | £30.42 |
Home charging cost
Full 0% → 100% on each common UK tariff, cheapest rate slot.
| Tariff | 4 | Megane E-Tech |
|---|---|---|
| British Gas Electric Driver 9.5p/kWh (Off-peak) | £5.86 | £5.70 |
| EDF GoElectric Overnight 9.0p/kWh (Off-peak) | £5.55 | £5.40 |
| E.ON Next Drive 6.7p/kWh (Off-peak) | £4.13 | £4.02 |
| Intelligent Octopus Go 6.9p/kWh (Off-peak) | £4.26 | £4.14 |
| Octopus Go 8.5p/kWh (Off-peak) | £5.25 | £5.10 |
| OVO Charge Anytime 7.0p/kWh (EV charging slot) | £4.32 | £4.20 |
| Standard Variable Price Cap 27.8p/kWh (Standard) | £17.15 | £16.68 |
Cost per mile
Real-world Wh/mile efficiency × representative tariffs.
| Scenario | 4 | Megane E-Tech |
|---|---|---|
| Home smart off-peak | 1.8p/mile | 1.9p/mile |
| Tesla Supercharger | 15.7p/mile | 16.5p/mile |
| BP Pulse PAYG | 24.0p/mile | 25.4p/mile |
Considering any of these cars?
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Common questions
Why does the Megane's 22kW AC matter if I have a 7kW home charger?
It doesn't — single-phase home chargers cap at 7kW. The 22kW advantage only shows on three-phase destination chargers, which are common in supermarket car parks and some workplaces.
Which is the better long-distance car?
The MG4. Marginally larger battery and similar efficiency means around 220 miles real-world range vs 200 for the Megane.
Are both eligible for OZEV grants?
The OZEV grant for home chargers is closed for most homeowners but available for renters and flat-dwellers — both cars qualify for the grant if you fit a charger.