New Study Shows EV Batteries Can Last Over 20 Years with Minimal Degradation
New Study Shows EV Batteries are more durable than ever, according to data from over 10,000 electric vehicles (EVs). This comprehensive analysis, conducted by Geotab, a leader in connected transportation solutions, reveals that EV batteries degrade at an average rate of just 1.8% per year, extending their lifespan and reliability for both consumers and fleet operators.
Back in 2019, Geotab’s battery health analysis reported a 2.3% average annual degradation rate. However, the new study shows EV batteries now last significantly longer, with a reduced degradation rate of 1.8% annually. This improvement allows most EV batteries to potentially last 15 to 20 years or more under normal driving and climate conditions.
“This is a testament to how far EV technology has come,” said Geotab in their official report. “Drivers can now expect longer-lasting performance, which supports the long-term viability of electric mobility.”
What Affects EV Battery Lifespan?
According to the study, several factors contribute to battery degradation:- Age: All batteries lose capacity over time, but gradual loss is expected. Temperature: Extreme heat or cold can speed up degradation.
- Charging habits: Frequent DC fast charging, especially in hot weather, can reduce battery lifespan faster than slower Level 2 AC charging.
- State of charge: Keeping your EV battery charged between 20% and 80% is recommended to minimize strain.
- Battery chemistry: Different types (like NMC or LFP) offer varying levels of durability.
- Thermal management systems: Good battery cooling systems significantly protect long-term health. Best Practices to Extend Battery Life
- Geotab’s report also includes practical tips for EV owners looking to preserve battery life: Avoid full charges or deep discharges whenever possible. Limit use of DC fast charging, especially in hot conditions. Park in shaded or temperature-controlled environments to reduce thermal stress. Regularly monitor battery health through vehicle apps or diagnostics.
Why It Matters?
As electric vehicles (EVs) gain momentum globally, concerns about battery lifespan remain a key topic. However, new data provides strong reassurance: today’s EV batteries are proving to be not only environmentally friendly but also durable, reliable, and cost-effective over time.
This progress also strengthens the second-hand EV market, with batteries performing well beyond initial expectations—making pre-owned EVs a smarter and more trustworthy investment.
📊 Read the full report by Geotab here: EV Battery Health Report
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