How long does it take to charge an electric car at a supermarket?

[ORowan]

Charging an electric car at a supermarket typically takes 30 to 45 minutes to add a significant amount of range. This is because most supermarket installations are rapid (50kW) or ultra-rapid (100-150kW) chargers, designed for a fast top-up while you shop.

The specific time depends on your car's battery capacity and acceptance rate, and the charger's power output. For example, a typical EV with a 60kWh battery connected to a common 50kW rapid charger can gain approximately 100-120 miles of range in about 30-40 minutes. A more powerful 150kW charger could add up to 200 miles in the same timeframe, provided your vehicle can accept that rate.

It's crucial to understand the charging curve. Most EVs charge fastest when the battery is at a low state of charge, slowing down as it fills up to protect the battery. The often-cited "20% to 80%" charge is the sweet spot for speed, which aligns perfectly with a grocery run duration.

The table below outlines estimated charging times for different supermarket charger types for a common EV model:

Charger Type (Power)	Typical Location	Estimated Time (20% to 80% for a ~60kWh battery)	Approx. Range Added
Rapid (50kW)	Most common at supermarkets	35-50 minutes	100-120 miles
Ultra-Rapid (100-150kW)	Larger supermarket hubs	20-30 minutes	150-200+ miles
Fast (7-22kW)	Occasionally found, for longer stays	2-4 hours	25-80 miles

Several factors influence your actual charging time:

• Your Car's Maximum Charge Rate: A car limited to 50kW won't charge faster on a 150kW unit.
• Battery State of Charge: A nearly full battery charges much slower.
• Shared Power Units: Some dual chargers split power if two cars are plugged in simultaneously.
• Temperature: Very cold batteries charge more slowly until they warm up.

Costs are usually pay-as-you-go via an app, with sessions often priced per kWh consumed or by a connection fee plus time. Industry data shows supermarket charging can be competitive with public network pricing, sometimes offered as a loss-leader to attract customers.

For the fastest experience, plan your stop when your battery is below 50%. Use an app like Zap-Map to check the live status and power of a specific supermarket charger before you go. This ensures you don't arrive to find a slower unit or a queue, turning a quick stop into a long wait.

[LeCarlos]

As someone who uses supermarket charging weekly, it slots right into my routine. I do my big shop on Saturdays. I plug into their 50kW charger as I enter, and by the time I’ve loaded the groceries 40 minutes later, the car’s gained over 100 miles. It’s never been the sole way I charge, but it perfectly offsets the drain from my weekday commute. The key is to have a membership for the charging network they use—it makes payment seamless. I never aim for 100%; getting to 80-85% is the time-efficient sweet spot.

[Bentley]

Let’s talk about what this actually feels like for a family. We drive a mid-size electric SUV. On a Sunday, after soccer practice, we’ll stop at a large supermarket that has 150kW chargers. While my partner takes the kids inside to grab dinner ingredients and a treat, I might stay with the car for 20 minutes. In that short window, we can add nearly 150 miles of range. It alleviates any "range anxiety" for the upcoming week. The cost appears on my monthly charging app statement, and it’s often similar to home charging rates. For us, it’s less about a full charge and more about convenient, predictable top-ups that integrate with our existing errands.

[Talia]

The time is dictated by hardware. Most supermarket chargers are DC rapid units. Your car has an onboard charger for AC (like home charging) and a system to handle DC directly. Rapid chargers bypass the car's slower onboard charger, supplying DC straight to the battery. The real-world limit is your car's maximum DC acceptance rate. My car, for instance, can take up to 170kW. So on a 150kW supermarket unit, I’m getting near the max speed. But if the battery is cold or nearly full, the car’s software throttles the rate to preserve long-term health. Always check your vehicle’s manual for its peak DC charging capability—that’s your true time ceiling.

[Declan]

From a planning perspective, viewing supermarket charging as a "range top-up" service is most useful. Don't compare it to filling a gas tank or a full overnight charge. The business model for supermarkets is to attract customers with a valuable service; their chosen charging speed reflects typical dwell times. Older or more basic EVs might only accept 50kW, making a 40-minute stop ideal. Newer models on 150kW+ chargers can achieve useful gains in under half an hour. To optimize, I always check the real-time status on a map app before routing there—it shows the power rating and if it’s in use. This integration into a trip for another purpose makes the effective "charging time" feel almost zero, as you’re accomplishing a necessary task concurrently.