How Fast Does a Level 2 Charger Charge?
June 13, 2026
EV Charger Installation Services | Working Hours: 24/7 | (437) 218-8177 | 4548 Dufferin St #111, Toronto
EV Charger Installation Services | Working Hours: 24/7 | (437) 218-8177 | 4548 Dufferin St #111, Toronto
A Level 2 charger adds about 32 to 72 km (20 to 45 miles) of range per hour, delivering roughly 9.6 kW to 19.2 kW of power. That fully charges most EVs in 4 to 10 hours — about 5 to 7 times faster than a standard Level 1 wall outlet. Your exact speed depends on three things: your charger’s amperage, your car’s onboard charger limit, and your battery size.
Level 2 chargers all run on 240 volts, but they pull different amperage — and that’s what sets your real-world speed. Here’s how the common amperage levels translate to charging power and range per hour:
Charger Amperage | Power Output | Range Added per Hour |
16 amp | ~3.8 kW | ~16–24 km (10–15 mi) |
24 amp | ~5.8 kW | ~24–32 km (15–20 mi) |
32 amp | ~7.7 kW | ~40–48 km (25–30 mi) |
40 amp | ~9.6 kW | ~48–64 km (30–40 mi) |
48 amp | ~11.5 kW | ~64–72 km (40–45 mi) |
A 48-amp charger nearly doubles the speed of a basic 16-amp unit. Most home installs land at 40 amps (9.6 kW), which adds a full day’s typical driving in about an hour.
Charging time depends on your battery size divided by your charger’s power. A typical 60 kWh battery on a 7.2 kW Level 2 charger takes about 8 to 9 hours to go from empty to full. A smaller 40 kWh battery finishes in roughly 5 to 6 hours, while a large 100 kWh battery can take 10 to 12 hours.
In practice, you rarely charge from empty. Most EV owners plug in overnight and top up the 30 to 60 km they drove that day — which takes well under an hour on a Level 2 charger. You can see exactly what those top-ups cost with our EV charging cost calculator.
In one hour, a Level 2 charger delivers between 3.8 kWh and 11.5 kWh of energy, depending on its amperage. For most EVs, that adds 32 to 72 km of range. A 40-amp home charger — the most common setup — puts back around 9.6 kWh per hour, enough range for the average daily commute in a single hour of charging.
Three factors decide how fast your EV actually charges, and the slowest one sets your ceiling:
Charger Amperage — A 240-volt circuit can be wired for 16 up to 48 amps. More amps means more power, but the charger can only deliver what the circuit and breaker are rated for.
Your Car’s Onboard Charger — This is the part most people miss. Every EV has a built-in onboard charger that caps how much AC power it can accept. Even on a 19.2 kW charger, a car with a 7.2 kW onboard limit will only charge at 7.2 kW. This is the #1 reason two cars on the same charger charge at different speeds.
Battery Size and State of Charge — A bigger battery takes longer to fill. Charging also slows as the battery nears full (past about 80%), so the last 20% always takes proportionally longer.
If your Level 2 charger feels slow, it’s almost always one of these:
Your car’s onboard charger caps the speed — a 7.2 kW onboard limit can’t use a 48-amp charger’s full output. The circuit amperage may be lower than you think; a charger plugged into a 20-amp circuit charges far slower than one on a 50-amp circuit. Cold weather temporarily reduces charging speed while the battery warms. And charging past 80% naturally slows down to protect the battery.
If your charger is wired below its potential, an electrician can confirm whether your panel supports a higher-amperage circuit. Our guide on whether home EV chargers need a professional to install them covers what’s involved.
A Level 2 charger runs on 240 volts in North America (often called 220 or 230 — they refer to the same standard residential circuit). This is the same type of circuit that powers an electric dryer or oven. A Level 1 charger, by contrast, uses a standard 120-volt household outlet, which is why it’s so much slower.
Charger Level | Voltage | Range per Hour | Best For |
Level 1 | 120V | 6–8 km (4–5 mi) | Overnight trickle, plug-in hybrids |
Level 2 | 240V | 32–72 km (20–45 mi) | Daily home & workplace charging |
Level 3 (DC Fast) | 400V+ | 240+ km in ~30 min | Road trips, quick top-ups |
Level 2 is the sweet spot for daily use — far faster than Level 1, and far cheaper and gentler on your battery than relying on DC fast chargers.
A Tesla charges on Level 2 at up to 11.5 kW (48 amps) using a Tesla Wall Connector, adding roughly 64 to 72 km of range per hour. Tesla’s onboard charger accepts more power than many other EVs, so Teslas often charge faster on the same circuit. With a NACS or J1772 connection, a Tesla fully charges overnight on a standard home Level 2 setup.
No. Level 2 charging is gentle and designed for daily use — it’s the recommended way to charge at home. Because it delivers AC power at a moderate rate, it puts far less stress on the battery than DC fast charging. Frequent DC fast charging can accelerate battery wear over time, so using Level 2 for everyday charging actually helps your battery last longer.
A Level 2 charger adds 32 to 72 km of range per hour and fully charges most EVs in 4 to 10 hours — making it the best choice for daily home charging. Your real speed comes down to your charger’s amperage and your car’s onboard charger limit, so matching the two is key to getting the fastest charge.
Thinking about a faster home setup? A properly installed 40- or 48-amp Level 2 charger gives you the quickest safe charging your car can handle. Contact Toronto EV Experts to find out what your home panel supports.
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