How We Rank EV Chargers

Most charger roundups lead with “we tested 20 units” and hope you don’t ask how. We take the opposite approach: we state plainly that we have not bench-tested the chargers we compare, and we compete on a method that doesn’t need a lab — reading each unit’s published specs, doing the arithmetic in the open, and applying the electrical code honestly. If you followed our steps with the same spec sheets and the same electric rate, you should reach the same conclusions.

1. We start from the spec sheet, not the marketing

Every charger is evaluated on what the manufacturer’s datasheet actually says: max amperage and power, the connector (J1772 or NACS), how it installs (hardwired or a NEMA 14-50 plug), cable length, enclosure/weather rating, warranty and safety listings (UL/ETL, ENERGY STAR). Each fact is read from the manufacturer source on a dated visit, and that date is shown on the page. Where a brand does not publish a figure — a budget unit that never states an IP rating, say — we print “Not published.” That empty cell is a finding, not a gap in our research.

2. We show the charging-speed and cost math

Two numbers decide most purchases, and almost no competitor publishes them. We compute miles of range added per houras rated amps × 240V, then divided by a stated reference efficiency of about 3.5 miles per kWh — so a 48-amp (11.5 kW) charger adds roughly 40 miles per hour. And we compute cost to chargeas battery kWh × your local price per kWh. Every assumption is printed so you can drop in your own car and your own rate and re-run it. The full worked examples live on our cost-to-charge page.

3. We take electrical readiness seriously

A charger’s rated amps are only usable if your panel and circuit can carry them. We apply the National Electrical Code’s 80% continuous-load rule honestly — a 48-amp charger needs a 60-amp circuit, a 40-amp charger needs a 50-amp circuit — and we explain when a load manager can avoid a panel upgrade. We are not electricians and none of this replaces a licensed one; it’s there so you plan the right conversation. See panel capacity.

4. Rankings are argued, not scored

You will not find a numeric “9.2/10” anywhere on this site. A score implies a controlled measurement, and we haven’t run one — putting a number on a spec sheet would dress reading up as testing. Instead our rankings are reasoned in plain language: which charger wins for value, which for a Tesla, which for a freezing driveway, and where the buyer-first pick is the cheaper unit. That means an occasional “skip this” — which is the point.

5. Prices are live and dated — or they disappear

Every price is pulled from a live retailer feed and stamped with the date it was pulled. We don’t store prices in our content, so a stale number can’t sneak onto a page. If the daily price check stops running, the numbers expire on their own within 48 hours and the buttons fall back to “Check price on Amazon” — the failure mode is silence, never a wrong figure.

6. We never fabricate proof, and commission never decides a pick

There are no invented reviews, testimonials, star ratings, or “in our testing” claims anywhere on Level Two Club. Product images come from the retailer. We earn affiliate commissions and disclose them everywhere they apply, but the reasoning behind a pick is identical whether a link earns us anything or not. Read the full affiliate disclosure and our editorial policy.

Where we could be wrong

Reading spec sheets is not the same as bench testing, and we don’t claim it is. Firmware and prices change, a unit gets revised, and real-world charging speed depends on your car and temperature. Treat our guidance as a well-researched starting point, not a verdict from a lab — and for any wiring, a licensed electrician and a permitted, inspected install. If you find an error, tell usand we’ll correct it in the open.