World’s largest independent EV battery study launched, smaller vehicles show faster degradation

The battery tests underpinning the report are AVILOO's independent FLASH Tests which calculates battery health using trained models.AVILOOAn Austria-based company has launched the world’s largest independent study of battery health in used electric vehicles. AVILOO’s new study involves data from used electric vehicles tested via its independent AVILOO FLASH Test. For each model, AVILOO calculates the median State of Health at three mileage milestones – 31,000 miles (50,000 km), 62,000 miles (100,000 km) and 93,000 miles 150,000 km – along with the range expected to cover 99% of vehicles at each point. AVILOO Certified EV Battery Report “The truth in this data is that averages hide a lot. Yes, EV batteries are ageing better than the ‘they wear out fast’ myth suggests – but that’s not the most useful thing this report tells you. What matters is that battery health varies significantly between models, and even more between individual cars of the same model. A gap of ten or fifteen percent in state of health is a real difference in range, in what a car is worth, and in what you can rely on it for. You simply can’t know where your car sits in that range without testing it independently,” said Marcus Berger, CEO of AVILOO.“That’s why we built the AVILOO FLASH Test, and why we’re now publishing this AVILOO Certified EV Battery Report twice a year – to give the whole market, from individual buyers to fleets and insurers, an honest, independent and genuinely global picture of how these batteries perform.” Three-minute diagnostic performed via EV’s OBD port AVILOO’s FLASH Test, an independent, three-minute diagnostic performed via the vehicle’s OBD port, is designed to answer that question for each individual used vehicle, rather than relying on an average across the model: a battery health certificate that gives consumers, dealers, fleet operators, insurers and lenders a trusted, independent number to work from, rather than the reading provided by the car’s own dashboard, according to a press release.That independence matters to consumers and trade buyers alike – fleet managers, remarketers and insurers – who need a consistent, comparable measure of battery health across makes and models, rather than a figure that can vary depending on how a manufacturer’s software chooses to report it.The study is based entirely on AVILOO Certified EVs – used cars whose real battery condition is a documented fact rather than a guess.AVILOO revealed that the study’s current edition covers more than 500,000 independent tests on AVILOO Certified vehicles from 2022 to 2026 across 20 popular EV models, part of AVILOO’s global database of over 1 million testsThe data spans North and South America, Europe, Australia and Asia, capturing how different climates affect battery health and charging performance. Battery health varies significantly between models, and even more between individual cars of the same model – independently testing your own EV, rather than relying on its dashboard reading, is the only way to really know its condition.State of Health (SoH), the percentage of a battery’s original capacity that remains, can vary by up to 13.5% between the best and worst-performing examples of the same model.The battery tests underpinning the report are AVILOO’s independent FLASH Tests which calculates battery health using trained models rather than relying on a vehicle’s own dashboard reports. Smaller-battery EVs, which need more frequent charging cycles to cover the same distance, tend to show faster degradation than larger-battery modelsThis summer, AVILOO also launched its Battery Warranty across Europe, giving buyers of used EVs a financially backed guarantee on battery health.Get the latest in engineering, tech, space & science - delivered daily to your inbox.Prabhat, an alumnus of the Indian Institute of Mass Communication, is a tech and defense journalist. While he enjoys writing on modern weapons and emerging tech, he has also reported on global politics and business. He has been previously associated with well-known media houses, including the International Business Times (Singapore Edition) and ANI.