Why are EV batteries so heavy?
ev batteries are the primary source of power for electric vehicles and need to hold much more energy than a traditional car battery with a combustion engine. Because they contain so much more energy, they are considerably larger and heavier than conventional car batteries. Data collected from thousands of evs on the road reveals that today’s batteries typically retain 80-90% of their original capacity after 8-10 years or 100,000+ miles. This gradual capacity loss doesn’t render the vehicle unusable; it simply reduces maximum range slightly over time.As EVs get older, the batteries progressively degrade. It is expected that at around 75% of the battery’s original capacity, it has reached the end of its life in an EV. In reality what this means is that if the car was sold with 400 km driving range, at the end of its useful life it could be down to around 300 km.Whilst lithium ion batteries do lose charge when the car is parked for an extended period, the good news is that this is usually a very minimal amount of the overall charge. Most electric cars can expect to lose only lose a few percent of their charge a month if sitting idle.
Is an EV battery heavier than an engine?
While EV batteries are heavier, their motors are much smaller and lighter than an internal combustion engine. To further make up for the additional weight that the EV battery brings, EVs replace traditional components with lightweight materials. In fact, EVs are known to be tougher on tires, with studies indicating that tires may wear out faster on electric cars compared to when mounted on gas-powered vehicles. Why is that? The obvious answer is weight, which largely comes from the EV battery.