How We Research

Updated on

Every guide on ModestMeasure starts with one question: will this product work for the person who is shopping for it? For our home EV charger guides, that means your car's plug, your garage or driveway and the circuit your home can support.

Here is how we answer it.

1. We start with the car and the plug

Your car's connector and how fast it can charge decide which chargers fit. Most cars use a J1772 plug, and Tesla cars use their own NACS plug.

We name the plug on every product we cover. When an adapter is needed, we say so.

2. We compare specs and features

We look at the amps, whether a charger plugs in or is hardwired, cable length, outdoor use and app or Wi-Fi features. Higher amps charge faster only up to what your car and your circuit can take.

ChargePoint, Emporia, Grizzl-E and the other makers describe their chargers in their own words, so we name the brand for every claim. We name a UL or ETL listing only when the maker's page or the listing directory shows it.

3. We look at the circuit and the install

A charger needs the right breaker, wiring and outlet. We explain the terms, such as amps, breakers and outlet types, so you can talk to an electrician with confidence.

We give no wiring steps. Hardwired and 240-volt installs need a licensed electrician, and local code and permits apply.

4. We look at buyer feedback

We read through what buyers report after using a charger. We look for patterns, like connection trouble, app problems, cables that are too short, units that run hot or hard installs.

One angry review doesn't sink a product. A pattern does.

5. We score each product

Our score weighs specs, features and buyer feedback against what you're shopping for. A product that's great for one garage may score lower in a guide written for another.

Scores spread out on purpose. A 10 is rare.

6. We keep pages up to date

Products change, and some disappear from stores. The plug standard is also shifting, so we check each model name and we only link new units.

Smart chargers can lose app support if a company changes course, so we note whether a charger also works without the app. When we update a guide, the "Updated on" date at the top changes with it.

What our picks are not

Our picks are research, not lab tests. We don't claim to have installed or used every charger we cover.

Our guides don't replace the maker's install instructions or a licensed electrician. We don't give tax advice or promise rebates and credits, which vary by state and utility.

We don't promise that any charger will suit every home, car or circuit. When a maker makes a claim, we label it as the maker's claim.