Plug-in EV chargers, compared on published specifications

A plug-in charger hangs on the wall and plugs into an outlet, almost always a NEMA 14-50. It can be unplugged and taken with you, and the outlet is useful for other things.

We do not test chargers. The median plug-in charger here outputs 40 A and therefore needs a 50 A breaker — the two numbers worth carrying into any listing you read.

Every figure below is taken from the manufacturer’s published listing and measured against the rest of the category. An output amperage is published by 100% of the plug-in EV chargers here; where a listing is silent, the page says not stated rather than filling the gap.

A small category, and worth saying so first. 21 listings is a narrow sample. The figures below describe what this site can see rather than the category as a whole, and a handful of new listings could move them noticeably.

Where the data runs out. 4 output classes hold too few listings to support a median: up to 16 A (2 listings), 17 – 32 A (3 listings), 41 – 48 A (5 listings), 49 A and above (1 listing). Below 8 a median describes the sample rather than the market, so the table prints the count and leaves the median blank.

What the numbers say about this category

Baselines for this category. A specification needs at least 8 listings stating it before a median is published.
Specification	Stated	Median	Middle half	Full range
Charger output	21	40 A	40 A – 48 A	16 A – 50 A
Breaker required (derived)	21	50 A	50 A – 60 A	20 A – 70 A
Power	10	9.6 kW	7.7 kW – 9.6 kW	3.7 kW – 11.5 kW
Cable reach	16	25 ft	25 ft – 25 ft	20 ft – 25 ft
Voltage	20	240 V	240 V – 240 V	110 V – 240 V

The middle-half column is the more useful one. It spans the 25th to 75th percentile, so it describes where most of the category actually sits, and it is far less sensitive than the full range to one unusual unit.

The circuit each one needs

An EV charger runs at its full output for hours at a stretch, which makes it a continuous load. The branch circuit therefore has to be rated at least 125% of the charger’s output. That single rule is the largest hidden cost in buying one, and almost no listing states it plainly.

Charger output against the smallest standard breaker that satisfies the 125% continuous-load rule. Power assumes 240 V.
Charger output	Breaker required	Power at 240 V	Listings
16 A	20 A	3.8 kW	2
32 A	40 A	7.7 kW	3
40 A	50 A	9.6 kW	10
48 A	60 A	11.5 kW	5
50 A	70 A	12.0 kW	1

This is arithmetic, not a design. The breaker figures here are the manufacturer’s published output multiplied by 1.25 and rounded up to the next standard size, which is what the continuous-load rule requires. They tell you what to expect before you call an electrician; they are not a substitute for one, and they say nothing about whether your panel has the capacity, what wire the run needs, or what your local code requires.

How this category spreads across output classes

Where this category’s 21 listings sit by output, and the circuit each class needs.
Output class	Listings	Breaker required	Median output
up to 16 A	2	20 – 20 A	Too few for a median
17 – 32 A	3	40 – 40 A	Too few for a median
33 – 40 A	10	50 – 50 A	40 A
41 – 48 A	5	60 – 60 A	Too few for a median
49 A and above	1	70 – 70 A	Too few for a median

How to choose one

NEMA 14-50 is the de facto standard, and it is a compromise

The 14-50 receptacle exists because ranges and RVs use it, not because anyone designed it for eight-hour charging. It is rated 50 A, which under the continuous-load rule caps a charger at 40 A — which is exactly where this category clusters. It is a perfectly good ceiling for most households, and it is a ceiling.

A new outlet needs GFCI protection, and that is not free

Current code requires GFCI protection on a new 240 V receptacle circuit, and a 50 A GFCI breaker costs several times a standard one. It is a real line item that never appears on a charger listing, and it narrows the cost gap between plugging in and hardwiring more than most buyers expect.

Being removable is worth more than it sounds

A plug-in charger comes with you when you move, goes in the boot for a long trip, and can be swapped without an electrician when it fails or when a better one appears. For a household that may not be in the same house in five years, that flexibility is often worth more than the tidier install.

What the listings do and do not tell you

Specification coverage is uneven, and that unevenness is itself worth knowing before you shop. A missing figure is not a worse product — it is a less completely described one — but it does mean you cannot compare on that axis without contacting the manufacturer.

How many listings in this category publish each specification.
Specification	Stated	Share
Output amperage	21	100%
Voltage	20	95%
Power in kW	10	48%
Cable length	16	76%
Connector type	17	81%

Where a listing is silent, this site prints not stated. It never fills the gap with a plausible default, because a specification table that looks complete and is partly invented is worse than one with visible holes.

Sizing the charger to the house

Most buyers reach for the highest amperage they can find, and most do not need it. A 40 A charger adds roughly 30 miles of range an hour, so an overnight charge covers several times a typical day’s driving. The step up to 48 A is worth paying for when the daily distance is genuinely long, when the battery is large and regularly run low, or when one charger serves two cars.

What decides it more often is the panel. A 60 A circuit needs heavier wire and more spare capacity than a 50 A one, and in an older house the honest answer is sometimes that the panel is the constraint rather than the car. That question is worth asking before choosing a charger rather than after.

Cable length is the specification owners most often say they would change. Measure from where the charger will actually be mounted to the furthest charge-port position you expect to use — including the car parked the other way round, and a second vehicle.

Mistakes this data makes visible

Reading the charger’s amperage as the circuit’s

A 48 A charger does not go on a 48 A circuit, and there is no such breaker anyway. It needs 60 A, with the wire to match. Buyers who size the circuit from the charger’s headline figure discover the difference when the electrician quotes.

Assuming a NEMA 14-50 outlet is free

A new 240 V receptacle circuit needs GFCI protection under current code, and a 50 A GFCI breaker costs several times a standard one. Plugging in is cheaper than hardwiring by less than the listings imply.

Buying amps instead of cable

The difference between a 40 A and a 48 A charger is about ten minutes on a typical overnight charge. The difference between a 16 ft and a 25 ft cable is whether the charger reaches the car at all. One of those is on every listing in large type and the other is not.

Find one that fits

The EV charger finder filters on output, connector, install method and app control, and shows each result against the median for its own output class — with the breaker it needs on every card. Chargers that do not state a value are kept in your results rather than hidden, and labelled.

Narrower comparisons

Same data, scoped to the group people most often shop for:

Plug-In 40 Amp EV Chargers

Individual chargers in this class

One page each, with the circuit it needs and how it sits against the median above:

Related categories

Hardwired EV Chargers — A hardwired charger is wired straight to the panel with no plug in the path.
Portable EV Chargers — A portable charger lives in the car rather than on the wall, and usually runs from either a household socket or a dryer outlet.

Figures on this page were computed from the corpus on 2026-08-29. How we compile these figures.