Battery Knowledge Hub
Independent guides on EV battery health, degradation, State of Health, and what to check before buying used.
What is State of Health (SoH)? Everything about your EV battery's condition
SoH measures how much usable capacity your EV battery retains compared to when it was new. Here's what the number actually tells you, how it's measured, and what counts as good.
Read moreExplanationHow EV batteries degrade over time
Age, mileage, and charge behaviour all play a role. Here's what the data actually shows about how — and why — EV batteries age.
Read moreExplanationWhat do battery degradation percentages mean in daily use?
A 93% SoH sounds abstract. This guide translates it into real range and charging impact you'll actually notice.
Read moreBuying guidesWhat to check before buying a used EV
Ten things every buyer should verify, from SoH to warranty coverage, split into battery essentials and everything else.
Read moreBuying guidesHow to read a Battery Truth report
A section-by-section walkthrough of what every part of your report means and what to actually do with it.
Read moreBuying guidesFast charging vs home charging: does it matter for battery health?
The evidence is more nuanced than most guides suggest — frequency and habits matter more than fast-versus-slow alone.
Read moreModel guidesTesla Model 3: battery degradation guide
LFP vs NMC, which model year to buy, and what SoH to expect at different mileages.
Read moreModel guidesNissan Leaf: what buyers need to know about battery health
Air-cooled battery, capacity bars, and why mileage alone isn't enough.
Read moreModel guidesFiat 500e: battery health and buying guide
A compact urban EV with a good warranty record. What the numbers look like in practice.
Read moreRegulationEU Battery Passport 2027: what it means for used EV buyers
New EU rules will require a digital record of every EV battery's history. Here's what's changing and why it matters now.
Read moreExplanationBattery degradation by brand: how different EV makers compare
Real published data on how battery chemistry, cooling design, and usage patterns translate into measurable degradation differences across major EV brands.
Read moreBuying guidesSelling your used EV: what your battery report can prove
Buyers are increasingly asking about battery health before they'll commit. Here's how an independent report helps you sell faster, and for a fairer price.
Read moreDriving tipsRange anxiety: is it still a real concern in 2026?
The fear of running out of charge shaped EV's early reputation. Here's what the real data says about how justified that fear still is.
Read moreDriving tipsHow temperature and speed affect your EV's real-world range
Real fleet data from millions of trips shows exactly how much cold, heat, and driving speed change how far your EV actually goes.
Read moreDriving tipsWinter EV driving: cold weather range tips
Cold doesn't damage your battery, but it does temporarily cut your range. Here's why, and six practical ways to claw range back.
Read moreDriving tipsSummer EV driving: staying cool without losing range
Air conditioning, hot-weather charging, and a real dataset on whether drivers actually charge more in the heat.
Read moreDriving tipsCharging an EV for the first time: a beginner's guide
The jargon, the apps, and the etiquette — everything a first-time EV driver needs to know before their first public charge.
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