The Short Version
ChargeCompared is a research and aggregation site, not a destructive testing lab. We do not have a watt-meter rack, a thermal chamber, or a 240V test bench in a rented warehouse. What we do is verify the things you cannot see on a product listing: actual amperage versus advertised amperage, NACS versus J1772 compatibility versus what the manual claims, smart-feature reality versus marketing copy, and how the charger behaves at the 12-month and 24-month mark according to verified-buyer reviews. Our work compresses 6 to 12 hours of manufacturer-site-and-owner-forum digging into a single comparison.
1. Topic Selection
Topics are picked from Google Trends rising queries in the EV-charging category, /r/evcharging and /r/electricvehicles weekly discussion threads, and Amazon Best Sellers Rank changes in the EV charger category. Roundups carry 3 to 12 picks and head-to-heads carry exactly 2. Any charger added as a new pick must hold a 4.2-star verified-buyer average or better with a healthy featured offer; a few legacy picks and comparison subjects sit below that floor (the ClipperCreek HCS-40P, for example) and the article says so where it happens. If a topic cannot be covered with chargers that clear the floor, it gets deferred or split.
2. Spec Verification
We cross-check every advertised amperage rating against the manufacturer's installation manual. Many chargers advertise 'up to 48A' but the manual reveals the unit ships with 40A dip-switches by default. We verify the NACS or J1772 connector and the included adapter situation. We confirm UL listing (UL 2594 for charging equipment, UL 2231 for personnel-protection circuits) by manufacturer name on the UL Online Certifications Directory.
3. Price Verification (Weekly, Automated)
We show price tiers ($ through $$$$) rather than exact dollar figures, because live prices move too often to promise accuracy. Tiers, availability, and product identity are re-verified against the live Amazon listing in scheduled audits: an automated weekly review of newly published articles, plus a periodic full in-browser check of every product on the site (most recently completed October 17, 2026). Listings that go dead, lose their featured offer, or change identity get swapped for a verified equivalent and logged.
4. Owner-Feedback Aggregation
This is the substitute for hands-on testing. Our research process reads the top 50 verified-purchase reviews per charger plus active threads on /r/evcharging, /r/teslamotors, and EV-specific owner forums. We look for recurring themes that appear in 3 or more independent reports: cord stiffness in cold weather, app reliability past 12 months, smart scheduling actually working with utility off-peak rates, GFCI tripping behavior, hardwire-versus-plug install differences, and warranty experience. Single-incident complaints do not make the article.
5. Installation Reality Check
Most home chargers can be either hardwired or plugged into a NEMA 14-50. We check what the manufacturer actually allows (some void warranty when plugged via NEMA 14-50 above 32A continuous), what most owners report doing, and what a licensed electrician would typically charge in 2026 dollars for a new dedicated circuit. Our 'true cost' analysis no longer assumes the federal Section 30C credit, which ended for chargers placed in service after June 30, 2026; state and utility rebates are noted where they commonly apply.
6. Editorial Audit Before Publishing
Every article passes an automated audit: zero em dashes, zero AI-content-tell phrases from a maintained block list, every affiliate link uses our Amazon Associates tag chargecomp-20 with rel="nofollow noopener sponsored", FTC disclosure appears above the fold, byline links to a verified author page with external identity confirmations, and JSON-LD schema (Article, FAQPage, BreadcrumbList, ItemList) validates against Schema.org definitions.
What We Don't Do
We do not claim hands-on testing. If you see a charger article on the site claiming 'we measured 49.2A on a Kill-A-Watt clamp', that is a mistake to flag, not a feature. We do not own the chargers we cover. Our recommendations are derived from manufacturer specs cross-checked against verified-purchase reviews, UL certification rosters, and the experience reports of long-time EV drivers on public forums. We also do not accept manufacturer sponsorships or free review units, and we do not run paid placements in our comparisons. The only revenue source is Amazon affiliate commissions, which are unaffected by which product you choose.
How This Site Is Produced
Parts of our publishing pipeline are automated: drafts are produced with AI assistance (Claude Opus 5 since September 29, 2026) on a weekly schedule, then run through a scripted audit battery (price-tier checks, link and schema validation, banned-claim screens) before deploy. Independent automated accuracy reviews run weekly, and a person re-verifies every Amazon listing in a logged-in browser on a monthly cycle, replacing dead or misrepresented listings and correcting price tiers. Every factual claim is expected to trace to a manufacturer spec page or the live Amazon listing; when we cannot verify something, we say so on the page rather than guessing.
Corrections
Send corrections to support@chargecompared.com or via the contact form. Spec errors, broken Amazon links, products that should be added or removed, price tiers that look stale: all welcome. Real email, real replies, usually within 48 hours, and every fix is dated in the public maintenance log; the corrections policy spells out the process.