Unlike gasoline cars, electric cars have a complex structure that requires users to have knowledge of charging, optimizing charging time, and calculating travel distances in order to use electric cars efficiently.
The battery pack is the most crucial component of an electric car. Electric car batteries are expensive and prone to degradation, so they require proper maintenance and charging.
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Should you charge an electric car battery to 100%?
According to experts, charging an electric car battery to 100% or frequently draining it to empty is not beneficial for the battery’s lifespan.
The optimal level is around 80% of the battery’s capacity, but you can still charge it to 100% if you need to travel a long distance the next day.
When the battery is fully charged to 100%, it heats up. Temperature significantly affects the performance, safety, and life cycle of lithium-ion batteries. It can alter the solid electrolyte interphase (SEI) layer, leading to decreased protection of the positive electrode and affecting normal chemical reactions within the battery. Temperature can also create cracks and gaps, causing unwanted chemical reactions that degrade and damage the battery over time.
Should you charge an electric car battery every night?
Unless you frequently travel long distances, it is not necessary to charge an electric car battery every night. Regularly charging the battery overnight, especially using fast charging, can accelerate battery degradation and increase the risk of damage.
If you charge the battery overnight, it is recommended to use a slow charger to reduce the charging cycle from 0-100%. Additionally, you should only charge the battery to 80% or enough for your daily needs before disconnecting the charger. This way, you can ensure the battery’s lifespan and maintain the vehicle’s operating range.
How long can an electric car stay without being charged?
An electric car with a fully charged battery can stay parked for a few days or even 1-2 months. However, if the duration is longer, it is advisable to consult the user manual to ensure battery safety.
It is not recommended to leave your electric car with a 0% battery for an extended period as it can lead to battery degradation. You should regularly maintain the battery at a level between 20-80%.
The cost of battery replacement for electric cars
The cost of battery replacement for electric cars varies depending on the model and manufacturer. According to a study by the U.S. Department of Energy in 2021, the estimated cost of lithium-ion batteries for electric cars is around $157/kWh.
For example, the cost of battery replacement for BMW i3 and Chevrolet Volt is around $16,000. For Tesla Model 3, it is around $15,799. In Vietnam, the cost of battery replacement for VinFast VF 8 is 384 million VND, and for VinFast VF 9, it can go up to 493 million VND.
Lithium and other elements used in batteries are scarce globally, which explains the high cost of batteries. However, understanding how to protect and prevent damage to the battery can slow down the degradation process.
TH (Tuoitrethudo)
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