Geotab created the EV Battery Degradation Tool to assess how batteries have been holding up and to consider the relative importance of the above factors on EV battery life under real-world conditions. See also: J1939: Why having electric trucks and buses speak the same language is good for fleets Introducing the EV Battery Degradation Tool While there has been plenty of research done on battery health, there has been very little data following the real-world performance of EVs over time, let alone comparisons across different makes and models.
Operating at high and low state of charge.Common factors impacting Lithium-ion battery health: Keep in mind, this is not the same as vehicle range (distance the vehicle can travel on those kWhs), which will fluctuate on a daily or trip-by-trip basis, depending on a number of factors including charge level, topography, temperature, auxiliary use, driving habits and passenger or cargo load. For example, a 60 kWh battery that has 90% SOH would effectively act like a 54 kWh battery. Batteries start their life with 100% SOH and over time they deteriorate. As a result, power degradation is rarely observable in EVs and only the loss of the battery’s ability to store energy matters.Ī battery’s condition is called its state of health (SOH). The batteries in EVs can generally deliver more power than the powertrain components can handle. See also: Preparing for EVs: Charge the North EV study findings for fleet operators What is EV battery degradation?īattery degradation is a natural process that permanently reduces the amount of energy a battery can store, or the amount of power it can deliver.
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However, most of us would find more comfort knowing how quickly our batteries are expected to degrade, and how to minimize this loss. Since 2010, the price of an average Lithium-ion battery pack has dropped by over 80%.Īn automaker’s guarantee of their battery technology and the promise of decreasing costs should inspire some confidence. Warranties are reassuring, and so too is the fact that battery costs are decreasing significantly year over year. Typically, battery coverage is 8 years or 100,000 miles, but this will vary by manufacturer and country.
What you may find instead are assurances that batteries are covered by warranty should something go wrong. You might have noticed that it is tough to get a straight answer to questions about an EV’s battery lifespan.
See also: Podcast: EV myths and management with Charlotte Argue How long will an EV battery last? As the battery is an EV’s most expensive component, the degree of degradation will affect the vehicle’s residual value (which helps answer the cost question from above), and will also have a direct impact on maximum usable range over time. These three questions are probably at the top of your list:įrom a life-cycle perspective, battery performance and health really are the key to it all. If you’re thinking about buying an electric vehicle (EV), there are some important factors to consider.
See also: To what degree does temperature impact EV range? The importance of EV batteries Read on to learn about EV battery health and get key takeaways on real-world battery performance. Geotab developed the tool based on an analysis of 6,300 fleet and consumer electric vehicles.
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How long does an electric car battery last? Use the free EV Battery Degradation Tool to compare the average battery degradation over time for different vehicle makes and model years.
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