3.5kW vs 7kW vs 22kW Charger: Which One is Right for You?
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3.5kW vs 7kW vs 22kW Charger: Which One Is Right for You?
Choosing a charger for your electric vehicle and unsure whether to go with 3.5kW, 7kW or even 22kW? Don't worry — we’ll break it down in a clear and simple way.
More power doesn’t always mean better. In fact, for most drivers, a 3.5kW (16A) portable charger is the most balanced, cost-effective, and compatible option for home use in Europe.
📊 Technical Comparison: 3.5kW vs 7kW vs 22kW
| 3.5kW (16A) | 7kW (32A) | 22kW (Three-phase) | |
|---|---|---|---|
| Installation | Schuko socket | Wallbox + dedicated line | Three-phase setup + high-powered Wallbox |
| Average charging speed | +25 km/hour | +50 km/hour | +100 km/hour |
| Required contracted power | 3.45–6.9 kVA (standard) | > 6.9 kVA | > 13.8 kVA (three-phase) |
| Installation cost | None | High (electrician + equipment) | Very high (special infrastructure) |
| Mobility | 100% portable | Fixed | Fixed |
| Common home usage | ✔️ Ideal | ⚠️ Limited without upgrades | ❌ Not feasible for most homes |
⚠️ Don’t Fall for the “More Power is Better” Myth
More powerful chargers aren’t always the better choice — and many homes can't handle them. Here are some key drawbacks:
- Expensive and complex installations
- Increased risk of circuit overloads when using other appliances
- Faster battery wear over time with frequent fast charging
- Higher electricity bills due to increased contracted power
✅ Real Advantages of a 3.5kW (16A) Charger
- Simple setup: uses your existing Schuko socket
- Works in any home — no electrical upgrades needed
- Charges overnight while you sleep
- Perfect for daily commutes up to 250 km
- Portable: take it anywhere you go
- Gentler on your battery over time
📈 What If You Need Faster Charging?
For long trips, public fast-charging stations are available. But at home, a 3.5kW charger is the most convenient and economical solution for everyday use — with no complications.
❓ Frequently Asked Questions
Is a 3.5kW charger enough for daily use?
Yes. It can charge up to 250 km overnight — more than enough for most drivers.
Does fast charging damage the battery?
Over time, yes. Frequent use of 22kW or higher charging can increase long-term battery degradation.
Can I install a 7kW charger at home?
Only if your electrical system supports it and you hire a qualified electrician. Not all homes are eligible.
🚀 Conclusion
For 90% of users, the 3.5kW (16A) portable charger is more than enough. It’s affordable, portable, compatible with standard sockets, and protects your battery health.
Make the smart choice: charge at home safely, easily, and without hassle.
✔️ No installation • ✔️ Portable and safe • ✔️ Compatible with 99% of Type 2 EVs