These are the explainers behind the numbers on this site. If a figure on a car page raised a question — why there are two range figures, what a 10-80% time really measures, whether cold weather is as bad as people say — the answer is here, with the sources.
The data-driven pieces — what charging costs per month, whether a 48-amp home charger is worth it, how many kWh a full charge really takes — are on the blog, newest first.
Browse by subject
- Charging — charge curves, the 10-80% window, 800V against 400V
- Range & efficiency — EPA against WLTP, Wh/km, what the official figures leave out
- Battery technology — LFP, NMC, NCA, solid-state, sodium-ion
- Running costs — electricity against petrol, cost per mile, pack replacement
- Buying advice — which specification differences change ownership
All guides
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74 electric cars per fast charger — and the states with the most plugs are the worst served
5,689,100 registered electric cars share 77,265 public fast-charging plugs. California has more plugs than any other state and 97 cars competing for each; Wyoming has 169…
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The US has 76,041 fast-charging plugs — and a third of the sites have just one
76,041 public DC fast-charging plugs at 15,433 US locations, but 32.3 per cent of those locations have a single plug, and Tesla now holds 50.4 per…
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147 EV recalls: only 20 were fixed without a workshop visit
Across 14 electric cars and 147 NHTSA recall campaigns, only 20 were fixed over the air — and 17 of those were Teslas. Full table, the…
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How many charging stops on a 500-mile drive? Two, in every car — but 34 minutes or 96
Every EPA-rated car on this site stops twice on a 500-mile drive. The time those two stops cost runs from 34 minutes in the Hyundai Ioniq…
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EV charging cost by state: $44 a month in Nevada, $177 in Hawaii
The same car costs $44 a month to charge in Nevada and $177 in Hawaii. All 50 states and DC at the EIA’s published residential rates,…
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How many kWh does it take to charge an electric car? 18 cars, measured from the wall
67 to 107 kWh from the wall for a full charge — about a tenth more than the battery holds — costing $12 to $20 at…
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Home charging at 7.7 kW vs 11.5 kW: how much faster, car by car
A 48-amp charger saves 2.6 to 4.2 hours on a full charge across 18 cars — but none of them can take the full 11.5 kW,…
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What it costs to charge an electric car per month: 15 cars at US rates
Between $54 and $89 a month at home for the 15 EPA-rated cars on this site, against about $170 in petrol. On public DC stations the…
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Do you need a 350 kW charger? For 9 of these 14 cars, no
Only 5 of the 14 cars we have measured charge any faster on a 350 kW station than on a 150 kW one, and all of…
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Do EVs lose range in cold weather? What the data actually shows
Yes — and mostly not for the reason people assume. The battery gives up some capacity, but the bigger share goes to heating a cabin that…
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Wh/km explained: how to read EV efficiency, and why it beats battery size
One car carries 87 kWh and does 402 km. Another carries 79 kWh and does 555 km. Efficiency is the least-shopped figure on a spec sheet…
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EPA vs WLTP range: why the same car has two different numbers
We ran both official range figures against observed real-world results for the nineteen cars in our database. Real range averages 92% of the EPA figure and…
Charging time and cost, car by car
If your question is about one specific car rather than the idea behind it — how long it takes to charge and what it costs to run — those are worked out per model, with US electricity rates and every assumption shown, on the charging time and cost pages.
Browse the database itself
Every car we hold data for, sliced the way people usually narrow a shortlist. These are generated from the database, so they stay right as cars are added.
- All electric cars in the database — every model, with range, charging and efficiency
- By body: SUVs · saloons · pickups
- By drive: rear-wheel drive · all-wheel drive
- By battery: all chemistries explained, or jump to LFP, NMC and NCA cars
Looking for a ranking instead?
If you want the cars sorted rather than the concept explained, the rankings are generated straight from our vehicle database: fastest-charging, most efficient, longest observed range, the biggest gap between claimed and real range, and more.