Renault Mégane E-Tech or Volkswagen ID.3: the batteries compared
What the advert doesn’t say: capacity by version, the manufacturer’s warranty, and what a failure would cost.
The essentials
- Biggest battery: Volkswagen ID.3, up to 79 kWh, against 60 kWh (Renault Mégane E-Tech).
- Battery warranty: the same terms, 8 years or 100,000 miles.
- Cheapest new pack: Renault Mégane E-Tech, about €12,000, against €13,000 (Volkswagen ID.3).
- Cheapest to charge: Volkswagen ID.3, from £6.14 per 100 miles at home, against £6.52 (Renault Mégane E-Tech).
- Module-by-module repair: feasible on each of these models.
Side by side
| Criterion | Renault Mégane E-Tech | Volkswagen ID.3 |
|---|---|---|
| On sale | since 2022 | since 2020 |
| Battery capacity | 40 · 60 kWh | 45 · 52 · 58 · 59 · 77 · 79 kWh |
| Chemistry | NMC | NMC |
| Battery warranty | 8 years or 100,000 miles guaranteed capacity: 70% | 8 years or 100,000 miles guaranteed capacity: 70% |
| Repairable module by module | Yes | Yes |
| Replacing one module | €600 – €1,800 | €700 – €2,000 |
| New pack, order of magnitude | ≈ €12,000 | ≈ €13,000 |
| WLTP consumption | 3.9 – 4.0 miles/kWh | 3.7 – 4.3 miles/kWh |
| Home charging, per 100 miles | £6.52 – £8.52 | £6.14 – £8.95 |
| Battery lease | Never | Never |
| Going further |
Capacity: every version sold under that name. Warranty: terms recorded for the UK, by year of first registration. Prices: orders of magnitude recorded in France, in euros, never quotes. Charging: from the most frugal version on the cheapest tariff to the thirstiest in real-world use.
Before you choose
A table compares models; you buy a car. Capacity depends on the version, the warranty on the date of first registration, and the state of health on the life the battery has had. The checker answers for one specific car: remaining warranty, expected state of health, cost of a failure.