EV Charging Guides & Buying Advice

Before you buy a charger you have questions the product pages do not answer: what a charge actually costs, what breaker and wire a 40-amp charger needs, whether Level 2 is worth it over the cord in the trunk, and what this NACS thing everyone keeps mentioning is. These guides answer those with arithmetic you can reproduce and sources you can check.

Start with the money question

The one guide the whole category skips is the cost math, so we led with it: our cost to charge an EV at home guide shows the formula, a worked example, and a table across a range of electricity rates so you can find your own number. Home charging is dramatically cheaper than gas, and it is worth seeing exactly how cheap before you spend on hardware.

Then the practical ones

• Types of EV chargers — Level 1 vs 2 vs 3, AC vs DC, and which actually matters at home.
• Level 2 installation cost — real dollar ranges and what drives them, including the panel-upgrade question.
• Wire size and breaker — the NEC continuous-load math that decides what amperage your home can support.
• NACS vs J1772 — the connector standards, which car uses which, and why adapters exist.
• Tethered vs untethered — attached-cable vs socket-only chargers, and why US homes skew tethered.

How to use them

Each guide bridges back to the product pages it supports, so you can go from "what breaker do I need" straight to the chargers that fit it. And a standing rule across every one of them: we are enthusiasts, not licensed electricians, so anything touching your panel or wiring is framed as standard practice to confirm with a professional and your local code — never as instructions to do it yourself. Our full method is on the how we research page.