How long does it take to charge an electric car?

Understanding how long it takes to charge an electric car is key to making the most of EV ownership. Charging times vary significantly based on several factors, from the size of your car's battery to the type of charger you use. Getting to grips with these variables allows you to optimise your charging strategy for convenience, cost, and battery longevity.

Understanding how long your EV takes to charge is crucial for efficient ownership. Fuse Energy helps you manage your home energy, including your electric vehicle, with clear insights and smart tools. Click here to switch to Fuse Energy today.

Understanding EV charging times

Electric vehicle (EV) charging isn't a one-size-fits-all process. The duration depends on a few core elements, which, once understood, demystify the entire experience.

The basics of electric car batteries

Electric cars are powered by large lithium-ion batteries, similar to those in your phone or laptop, but on a much grander scale. Their capacity is measured in kilowatt-hours (kWh). A higher kWh figure means a larger battery, offering a longer driving range but generally requiring more energy and time to charge fully. Most electric vehicles in the UK market have battery capacities ranging from around 20 kWh to over 100 kWh, with 40-60 kWh being common for many models.

Key factors influencing charging speed

Several factors determine how quickly your EV charges:

• Battery size (kWh): Larger batteries naturally take longer to fill.
• Charger type and power output (kW): The higher the power output of the charger, the faster your car will charge.
• Vehicle's maximum charging rate: Your car can only accept power up to its onboard charger's limit, regardless of how powerful the charging station is.
• State of charge (SoC): Charging is typically fastest when the battery is between 20% and 80% and slows down significantly as it approaches full to protect battery health.
• Temperature: Extreme cold or heat can affect charging efficiency and speed.

Types of EV chargers and their typical charging times

In the UK, EV chargers are categorised by their power output and location, significantly impacting charging duration.

Home charging (slow and fast)

Most EV owners do the majority of their charging at home, often overnight.

• Slow chargers (3-7.9 kW): These are typically standard domestic sockets or dedicated wall boxes, often rated at 3.6 kW or 7.4 kW for home use. For a typical 60 kWh battery, a 3.6 kW home charger would take approximately 16-17 hours for a full charge (from empty to 100%). This is ideal for overnight charging.
• Fast chargers (7-22 kW): These are common home wall boxes (often 7 kW) or public AC charging points (up to 22 kW) . A 7 kW home charger can charge a 60 kWh battery in around 8-9 hours. A 22 kW charger, often found in public car parks, can charge a 60 kWh battery in about 3 hours, though many cars cannot accept 22 kW AC.

Public charging (rapid and ultra-rapid)

For longer journeys or when you need a quick top-up, public rapid chargers are essential.

• Rapid chargers (50-150 kW): These DC chargers can significantly reduce charging times. A 50 kW rapid charger could add 80% charge to a 60 kWh battery in roughly 45-60 minutes, depending on the car's charging curve.
• Ultra-rapid chargers (100 kW+): The fastest public chargers, often found at motorway service stations, deliver 100 kW or more, with some reaching 350 kW. Ultra-rapid chargers can charge a 60 kWh battery to 80% in as little as 20-30 minutes, provided the vehicle can accept such high power.

Practical charging scenarios for UK drivers

Let's look at some common charging situations:

Daily commute charging

If your average daily trip is around 30-37 miles, a 7 kW home charger can easily replenish this overnight in just a few hours. This allows you to start each day with sufficient range without needing to visit public charging points. Many homeowners often pair this with a smart meter installation to track usage.

Weekly top-ups

For higher mileage drivers, or those without regular home charging, a weekly rapid charge session (e.g., 30 minutes at a 50 kW charger) can keep the battery topped up. This can be integrated into a weekly shopping trip or other errands.

Long journeys and public charging

Plan your route to include ultra-rapid charging stops every 2-3 hours of driving. A 20-30 minute break can add hundreds of miles of range, making longer trips manageable and reducing range anxiety. Many navigation systems in EVs can help plan these stops automatically.

Optimising your EV charging for cost and convenience

To make the most of your EV, consider these tips:

Smart charging strategies

• Charge to 80% for daily use: This is quicker and better for battery health than always charging to 100%.
• Utilise off-peak electricity tariffs: If you have a smart meter and a suitable tariff, charging overnight can be significantly cheaper.
• Pre-condition your battery: Some EVs can warm their battery before charging in cold weather, improving charging speed.
• Use smart charging features: Many EVs and home chargers allow you to schedule charging to take advantage of cheaper rates or renewable energy availability.

Fuse Energy provides the tools and insights to help you manage your home energy, including your EV charging, ensuring you have "power to play with" without worrying about the bill. You can also explore options for an EV charger installation for your home.

Battery health considerations

While modern EV batteries are robust, optimal charging practices can extend their life. Avoiding frequent full discharges and charges to 100%, especially with rapid chargers, can help maintain battery health over the long term. While frequent rapid charging can cause slightly more degradation, the impact is generally minimal for modern EVs, as battery management systems are designed to protect the battery.

Common questions about electric car charging

Can you charge an electric car in 30 minutes?

Yes, with rapid or ultra-rapid DC chargers, it is possible to add a significant amount of range to an electric car in 30 minutes. For example, a 150 kW ultra-rapid charger can typically add enough charge to a 60 kWh battery to reach 80% in around 20-30 minutes. However, this depends on the car's maximum charging rate and the current state of charge.

Is rapid charging bad for EV batteries?

While frequent rapid charging can cause slightly more degradation to an EV battery over its lifetime compared to slower AC charging, the impact is generally minimal for modern EVs. Battery management systems are designed to protect the battery, and manufacturers build in safeguards. For most drivers, the convenience of rapid charging for longer journeys outweighs the minor long-term effect on battery health. It's generally recommended to use rapid charging when needed, but rely on slower home charging for daily top-ups.

How many kWh does it take to charge an electric car?

The amount of kWh it takes to charge an electric car depends entirely on its battery capacity and how much charge it needs. You can estimate the charging time by dividing the battery size (in kWh) by the charging power (in kW) and accounting for charging efficiency, which is typically between 80% and 95%. For example, a car with a 60 kWh battery will require 60 kWh to charge from empty to full. However, most drivers don't charge from 0% to 100% every time. A typical charge from 20% to 80% on a 60 kWh battery would require approximately 36 kWh, taking into account the 60% charge needed (60 kWh * 0.6) and efficiency losses.

Ready to make the switch?

Understanding EV charging times is a crucial step towards confident electric car ownership. Fuse Energy is here to empower you with the energy solutions you need to make the most of your EV. We offer clear pricing, real-time usage data through our app, and 24/7 human customer support to help you manage your home energy effectively. Switching to Fuse Energy is quick and easy, designed to put you in control of your energy bills from day one. Click here to switch to Fuse Energy today.