Electric vehicle (EV) batteries are the crucial component to powering electric cars. They store energy from the electric grid or from regenerative braking and provide the energy necessary to run the electric motor. The size, capacity, and number of battery cells determine the range of an electric vehicle, with larger and higher capacity batteries providing a longer range. There is ongoing research to improve the performance and reduce the cost of EV batteries, making electric vehicles increasingly competitive with traditional gasoline-powered vehicles.

With so much of an EV’s functionality relying on the car’s battery, it is natural for drivers of gasoline-powered vehicles to have some questions when thinking about switching to EVs. These are some common questions that employees have about EV batteries: 

1. How long will the battery last?

According to industry expectations, on average EV batteries last between 100,000 and 200,000 miles, or about 15 to 20 years. That is actually more than the current life expectancy of a car - in other words, EV batteries are expected to outlast the vehicle they are in! However, It's important to keep in mind that this can be affected by factors such as aggressive driving, heavy loads, and extreme temperatures, which can all decrease the actual battery life.

2. Are the batteries safe?

The safety of EV batteries has been a topic of concern, but they are designed to meet rigorous safety standards and are considered very safe. The lithium-ion batteries in modern EVs have multiple layers of protection against overcharging, overheating, and collision damage, which reduce the risk of incidents such as fires. However, like any complex system, EV batteries can malfunction or fail, so it's important to follow the manufacturer's guidelines for maintenance and usage to ensure their safety. EV battery safety is also continuing to improve! There is current work being done to implement new battery types like lithium iron phosphate (LFP), which offers many benefits such as lower cost and longer life in addition to being 5 times less likely to combust in cases of damage or extreme temperatures.

3. How much do the batteries cost?

The transition of company fleets from traditional gasoline-powered vehicles to electric vehicles (EVs) often brings with it a lot of questions. These are the top 3 questions we have fielded from employees about electric cars:

1. How do I charge the car?

Charging an EV’s battery is not that different than filling up a traditional car’s tank with gasoline. To charge an EV, simply plug it into a charging station or wall outlet using the charging cord provided with the vehicle. Some newer EVs even come equipped with wireless charging capabilities. 

It's important to note that the charging time can vary based on the type of EV, the battery capacity, and the charging station used:

• Level 1 charging: This is the slowest type of charging and uses a standard 120-volt household outlet. It can take as long as 20 hours to charge an EV battery to full capacity.

• Level 2 charging: This type of charging uses a dedicated 240-volt charging station and can take anywhere from 4 to 8 hours to charge an EV battery to full capacity.

• Level 3 charging (Fast Charging): This type of charging uses a specialized charging station that provides a high-voltage, direct-current (DC) electrical charge to the battery. It can take as little as 30 minutes to charge an EV battery to 80% capacity.

2. What is involved with maintaining an electric car?

EVs generally have lower maintenance requirements compared to traditional gasoline-powered vehicles. Some of the key contributing factors include:

• Fewer moving parts: EVs have fewer mechanical parts, which means fewer parts that can break down or need repairs.

• No oil changes: EVs don't have engines with oil, so there's no need to change it.

• No transmission: EVs have a single-speed transmission, which is simpler and more reliable than the multi-speed transmissions found in gasoline-powered cars.

• No exhaust system: EVs don't have exhaust systems, which can be a major source of problems and repairs for gasoline-powered cars.

• No spark plugs or air filters: EVs don't have spark plugs or air filters, which can be expensive to replace in gasoline-powered cars.

That being said, EVs do have some maintenance requirements of their own. For example, the battery and charging system will need to be checked and potentially replaced after a certain number of years, and the brakes may need to be replaced more frequently due to the regenerative braking system used in electric cars.

In general, EVs can offer significant savings in terms of maintenance costs, but the actual costs will depend on factors such as the specific model, driving conditions, and the age of the vehicle. (source: AFDC)

3. How far can an electric car travel on a single charge? 

The distance an EV can travel on a single full battery charge is known as its range. The range of different electric cars can vary greatly depending on several factors, including the model and make of the vehicle, the battery capacity, the driving conditions, and the way the car is driven.

Typically, the range of modern electric cars starts at around 100 miles and can go up to 400 miles. For example, the Tesla Model S, which has a large battery capacity, can travel up to 373 miles on a single charge, while smaller electric cars like the Nissan Leaf can have a range of around 150 miles.

It's important to keep in mind that a specific EV’s actual range can be affected by a variety of factors such as climate, terrain, the use of air conditioning or heating, and how fast the car is driven.