How depreciation, durability, and safety are turning disruption into inevitability
For years, critics pointed to one supposed weakness of electric vehicles: they don’t hold value. Falling resale prices are framed as proof that EVs are a fad, that batteries won’t last, or that buyers will be left holding the bag.
That narrative is backward and lazy.
In every major technology shift, depreciation is not a sign of failure — it is the mechanism that transforms innovation into mass adoption. Smartphones, solar panels, laptops, and LED lighting didn’t conquer the world by staying expensive. They scaled by becoming affordable.
EVs have now entered that phase. And the secondary market is where the transition accelerates.
1) The myth: “EVs don’t retain value”
The obsession with resale misses the real story. A rapidly improving technology that drops in price is not broken — it is maturing. Lower used prices mean:
- First‑time buyers can enter the market
- Apartment dwellers can adopt using workplace and public charging
- Students, trades, fleets, and regional drivers gain access
Depreciation is not decline. It is distribution.
2) Why the pre‑2018 experience still haunts the narrative
A critical part of the EV debate is often missing: not all EV generations are the same.
Before around 2018, many electric vehicles were effectively first‑generation products. Battery packs had:
- Limited thermal management (often passive or air‑cooled)
- Simpler battery management systems
- Earlier cell chemistries with higher degradation rates
As a result, it was common for some early EVs — particularly those built between 2013–2017 (including first‑generation mass‑market models such as the Nissan Leaf introduced in 2010) — to experience major range loss and, in many cases, require battery replacement at ~150,000–200,000 km or earlier, especially in hot climates or under frequent fast‑charging.
This is why there are still so many stories circulating about owners of early‑model EVs needing full battery replacements. Those experiences were real — but they describe a past generation of technology, not the vehicles being built today.
Failing to distinguish between early EVs and modern ones is like judging today’s smartphones by the battery life of a 2010 iPhone.
3) “EVs aren’t new”: why that argument misses the point
A common critique is that electric vehicles are not a new invention at all — that they existed in the late 1800s, briefly competed with early petrol cars, and therefore cannot be considered a true technological disruption today.
This is technically correct — and completely misleading.
What existed a century ago were electric drivetrains without the enabling technologies that make modern EVs viable at scale. The true disruption is not simply “electric motors in cars.” It is the convergence of three modern breakthroughs:
- Lithium‑ion batteries: High energy density, fast‑charging, mass‑manufacturable storage that can deliver hundreds of kilometres of range
- Brushless permanent‑magnet motors: Compact, efficient, high‑torque machines with minimal wear, capable of sustained automotive duty
- Digital control systems: Sophisticated power electronics, software‑defined drivetrains, battery management systems, and over‑the‑air updates
Without these three pillars, early EVs were fundamentally constrained by weight, range, cost, and durability.
This is the same error as claiming that “computers aren’t new because mechanical calculators existed in the 1800s.” What matters is not the category, but the technological threshold that enables mass adoption.
Modern EVs crossed that threshold in the early 2010s with the first mass‑market models such as the Nissan Leaf (launched in 2010), and reached true engineering maturity after ~2023.
4) What changed after 2018
Early EVs were proofs of concept. From around 2018 onward, three engineering shifts transformed battery longevity:
- Thermal management: Liquid cooling and structural packs reduced heat‑related degradation
- Battery management systems (BMS): Smarter balancing, charging control, and degradation modelling
- Chemistry improvements: Coated cathodes, better electrolytes, and more stable cell designs
The result: modern packs no longer degrade like early‑generation batteries. Real‑world data from high‑mileage vehicles shows that post‑2018 NMC packs commonly reach ~400,000–500,000 km before approaching conventional end‑of‑life thresholds (typically defined as ~70–80% capacity).
That alone makes today’s used EVs a fundamentally different proposition from early models.
5) LFP and the million‑kilometre shift
From around 2020, a second transformation arrived: LFP (lithium iron phosphate) at scale.
LFP prioritises cycle life, thermal stability, and safety over peak energy density. The industry began openly designing packs for 500,000 km to ~1 million km durability — not as marketing, but as engineering targets.
Why this matters:
- Batteries are now designed to outlast the vehicle itself
- Second‑hand buyers are no longer inheriting “end‑of‑life” assets
- Total cost of ownership collapses as battery replacement becomes a non‑issue
Once the most expensive component is built for extreme longevity, the economics of used EVs change permanently.
6) The emerging 2‑million‑kilometre era
Since 2023–2024, we’ve started seeing the next step: current‑generation cells designed with “2‑million‑kilometre‑class” durability as the engineering target.
This does not mean every private car will physically travel two million kilometres. It means the design philosophy has flipped:
The limiting factor is no longer battery life — it is how long the car itself remains relevant.
Batteries are becoming infrastructure assets embedded inside vehicles.
7) Safety: more EVs, lower risk
The safety data tells a story that runs directly against the headlines.
- According to recent estimates, there were ~85 million electric vehicles (BEVs + PHEVs across cars, vans, buses, and heavy trucks) on the road globally by the end of 2025, excluding two‑ and three‑wheelers
- This represents rapid growth from roughly ~58–60 million electric cars alone at the end of 2024
- Annual EV sales have risen from ~3 million per year to ~21 million per year in just five years
- Yet fire incidents per vehicle continue to fall, driven by:
- Widespread adoption of LFP chemistry
- Improved BMS and thermal protection
- Structural battery packs
- Continuous software‑based safety updates
Independent incident tracking supports this trend. EV FireSafe — an Australian research organisation maintaining one of the world’s most comprehensive, verified databases of EV battery fire incidents — shows that documented EV battery fires remain extremely rare relative to the size of the global fleet, and that risk per vehicle has been declining as technology matures.¹
As scale explodes, risk is declining. That is the opposite of what critics predicted.
The public narrative still fixates on rare events. The statistical reality is that modern EVs are becoming safer with every generation, even as total numbers surge.
Visuals that make the safety story visceral
Chart A — EV fleet growth vs. battery fire incidents per 100,000 vehicles
- X‑axis: Year (2015–2025)
- Left Y‑axis: Global EV fleet (millions)
- Right Y‑axis: Battery fire incidents per 100,000 vehicles (log scale)
- Data: EV FireSafe (incident counts) + global fleet estimates (IEA/BNEF/Gartner)
What it shows: As the fleet scales rapidly, risk per vehicle falls.
8) Why the secondary market is the tipping point
A real‑world snapshot: Australia’s used EV market
To illustrate how affordability is already unlocking adoption, here is a snapshot from Australian used‑car listings in early 2025. Converting to USD (≈ A$1 = US$0.66):
- MG ZS EV (2020–2021): A$15,900–18,990 → US$10,500–12,500
- Hyundai Kona Electric (2020): ~A$19,800 → ~US$13,100
- Hyundai IONIQ Electric (2019): ~A$19,900 → ~US$13,100
In other words, modern, fully‑electric vehicles with 200–450 km real‑world range are already available in the US$10k–13k bracket. That is below the price of many equivalent used petrol SUVs and hatchbacks.
Note on exclusions: I deliberately excluded Nissan Leafs from this comparison (some appear around the ~A$15k / ~US$10k mark) because these examples are overwhelmingly pre‑2023 models. Those vehicles pre‑date the widespread adoption of advanced thermal management and modern BMS in the Leaf lineup, features that had already become standard in Chinese EVs and Teslas from ~2016 and across much of the broader industry after 2018 — and which have a dramatic impact on long‑term battery life. Including them would distort the comparison between early‑generation Leafs and today’s mature EV platforms.
TThe first phase of the EV transition was about technology.
The second phase is about access.
When used EVs become affordable:
- Urban drivers adopt through workplace and public charging
- Apartment residents bypass home‑charger barriers
- Younger buyers enter the market
- Fleets electrify at scale
But affordability is only part of the story. Liquidity in the secondary market is what turns access into confidence.
Anyone who has ever traded knows this dynamic: a deep, active resale market lowers risk for primary buyers. When people know they can exit easily, they are far more willing to enter in the first place. A liquid used‑EV market therefore strengthens the new‑EV market, rather than undermining it.
There is a second, reinforcing effect. As adoption grows, charging infrastructure utilisation rises, improving economics for operators and accelerating further rollout. That, in turn, removes barriers for the next wave of buyers.
This creates a fortuitous feedback loop:
- More used EVs → lower prices → broader access
- Broader access → higher utilisation of chargers
- Higher utilisation → faster infrastructure build‑out
- Better infrastructure → higher EV adoption
The secondary market is not just about price. It is a system‑level accelerator.
The secondary market is also being reshaped by a fundamental mechanical asymmetry between EVs and internal‑combustion vehicles.
Used EV vs used ICE: the maintenance divide
A cheaper ICE vehicle typically becomes riskier over time:
- Gearboxes, clutches, turbos, injectors, exhaust systems
- Oil leaks, timing belts, emissions equipment
- Rising servicing costs as mileage increases
A used EV, by contrast:
- Has no engine, no transmission, no exhaust, no oil system
- Experiences far less brake wear due to regenerative braking
- Can receive over‑the‑air software updates that improve efficiency and safety
This flips the traditional used‑car equation. As EVs get older and cheaper, they do not become mechanically fragile in the way ICE vehicles do.
Battery health transparency, running costs, and residual value
Total cost of ownership (TCO): the missing fuel equation
Maintenance is only half the story. For many drivers, the largest operating cost is fuel.
Electricity remains dramatically cheaper per kilometre than petrol or diesel, particularly for:
- Urban and suburban drivers
- High‑kilometre commuters
- Fleet vehicles
For some drivers, this means that a second‑hand EV — even when financed or leased — can cost less per month than a cheaper ICE vehicle once fuel savings are included. In other words, operating costs can outweigh purchase price in determining real affordability.
This is why many households discover that an EV does not merely replace a car — it restructures their transport budget.
Fuel-only cost comparison: 50,000 km (mostly solar charging)
To isolate the effect of energy alone, consider two comparable vehicles driven 50,000 km:
Assumptions (conservative):
- EV efficiency: 15 kWh / 100 km (0.15 kWh/km)
- ICE efficiency: 7.5 L / 100 km
- Petrol price: US$1.60/L (≈ A$2.40/L)
- Electricity: 80% self‑generated rooftop solar at US$0.00 (owner‑produced, zero marginal cost), 20% grid at US$0.25/kWh
Energy required:
- EV: 50,000 km × 0.15 kWh/km = 7,500 kWh
- ICE: 50,000 km × 7.5 L/100 km = 3,750 L of fuel
Fuel cost:
- EV: 7,500 kWh × 20% × US$0.25 = US$375 (≈ A$570)
- ICE: 3,750 L × US$1.60 = US$6,000 (≈ A$9,000)
Result:
EV fuel cost over 50,000 km: ~US$375 (≈ A$570)
ICE fuel cost over 50,000 km: ~US$6,000 (≈ A$9,000)
Direct saving: ~US$5,600 (≈ A$8,400) on energy alone
That is before accounting for servicing, wear items, or time saved on refuelling. For high‑mileage drivers and households with rooftop solar, energy costs collapse to near zero — and the used EV becomes not just cheaper to buy, but radically cheaper to operate.
EVs also introduce something unprecedented in automotive history: measurable remaining life.
- Battery State of Health (SoH) can be read directly through diagnostics
- Degradation is quantifiable, not guesswork
- Buyers and dealers can assess remaining lifespan in minutes
No combustion engine offers anything comparable. This transparency is quietly transforming how used vehicles are valued and financed.
Warranties as a trust signal
Manufacturers are no longer hedging their bets — particularly in China. Most modern Chinese EVs ship with 8–10 year / 160,000–240,000 km battery warranties, and in some fleet and commercial markets even longer coverage is offered, including unlimited‑kilometre warranties on the battery.
Outside China, warranty terms are generally more conservative, but the direction of travel is the same as pack durability improves.
That matters for the second‑hand market:
- It reduces buyer anxiety
- Makes EVs financeable and insurable at scale
- Signals that OEMs themselves expect batteries to outlast ownership cycles
This is how disruption finishes. Early adopters pay the innovation premium. The secondary market turns innovation into ubiquity.
Once the economics cross that threshold, the transition is no longer ideological. It becomes inevitable.
9) The bigger picture
Resale declines are not a warning sign. They are the signal that the technology has matured.
Modern batteries now:
- Outlast the vehicles they power
- Carry far lower safety risk than earlier generations
- Enable EV ownership at price points once reserved for used ICE cars
And when vehicles reach the end of their automotive life, the battery is often still a valuable asset. Packs can be repurposed for:
- Home and commercial energy storage
- Backup power
- Grid‑balancing and peak‑shaving
End‑of‑vehicle life no longer means end‑of‑battery life.
Depreciation is not weakness. It is how adoption scales.
When batteries outlast cars, fire risk falls even as fleets explode, and affordability reaches the mainstream, the argument is over. The transition stops being ideological. It becomes economic law.
The second‑hand EV market is not a footnote in the energy transition. It is the mechanism that turns disruption into society.
And once that mechanism is in motion, there is no going back.
Sources & further reading
- EV FireSafe – Global EV battery fire data and analysis:
- Geotab (fleet degradation studies): Large‑sample analyses of battery health and longevity across high‑mileage EV fleets.
- Recurrent Auto: Long‑term battery health tracking across thousands of vehicles, used by insurers and dealers.
- IEA / BloombergNEF / Gartner: Global EV fleet size and sales baselines used to normalise incident rates.
(EV FireSafe is an independent research organisation, supported in part by the Australian Government, that tracks verified EV battery fire incidents across cars, buses, trucks, and specialty vehicles.)