Frequently asked questions
How long will a battery last on an electric car
The warranties of the batteries can be anything from 5 to 10 years. Most new cars have a warranty of 8 years or 160,000 kilometers. Tesla now has an unlimited warranty on the 85 kWh battery on Tesla Model S (more info).
But keep in mind that this is the warranty, and no indication of the lifespan of the batteries. Studies have shown that batteries last longer than most cars. It is not uncommon with batteries having lost less than 10% of its original capacity after 300,000 km.
How much does a new battery cost?
The price of batteries for electric vehicles is dropping sharply. From 2010 till 2016, the prices of batteries has dropped by 65%. In 2016, the price of Li-Ion batteries is US$145 / kWh and expected to drop to US$ 100 / kWh by 2022. After all, if you buy a car in 2017, you do not need a new battery until 2025 at the earliest. A 60 kWh battery would then cost US$ 6,000 (THB 210,000) when you might need it in 2025.
When calculating the cost of a battery, it is also important to account for the money saved on engine repair and maintenance and not least, the cost of fuel. With an electric vehicle, you do not need to change oil, replace the timing belt and many other expensive costs.
What happens if I drive an electric vehicle into a flooded area?
Cars have had batteries in them for a very long time, and they have circuit breakers that prevent a problem if the car got into deep water. Sure, a normal car has only 12-volt battery system while a battery on an electric car has more than 200 volt batteries. The manufacturers of electric vehicles have taken measures to avoid a dangerous situation if the batteries get in contact with water. In Thailand, flooding is very common and it is natural to think of this as a problem, but keep in mind that hybrid cars are very popular in Thailand. These hybrid cars have battery voltage like on a fully battery powered car. As an example, a 2010 Toyota Prius has a battery voltage of 201 volt, almost the same as a home. It just doesn't have that many amps, but is just as dangerous.
How much does it cost to "fill up" an electric vehicle?
Many people think electric is expensive in Thailand and therefore also expensive to use an electric car. Below is a table with average cost of "filling up" an electric car compared to a regular gasoline car.
Energy cost to drive 100 km Dist/Unit Consumption per 100 km Price Cost Electric vehicle 5.5 kWh/km 18 kWh ฿ 4.62 ฿ 83 Gasoline vehicle 0.6 L/10 km 6 liter ฿ 25.00 ฿ 150