The only vehicle history report
built for EVs.

Battery health estimate, charging fit score, open recalls, and a negotiation script — for any used EV listing. Carfax can't tell you if the battery is degraded or if the car fits your charging life. OFFO can.

Paste a listing from CarGurus, AutoTrader, or Cars.com — get a verdict in seconds.

No URL or VIN? Enter details manually →

Or get weekly EV deal alerts — no sign-up required

Have a listing?

Paste the URL or VIN above

Get a risk verdict in seconds

Find your fit in 60 seconds

Carfax tells you what happened. OFFO tells you if the battery can handle your life.

3 questions. No sign-up. EV-specific vehicle match.

Check if this EV fits your routine

3 quick questions. No sign-up needed.

Where will you charge most often?

Pick where you charge most weeks.

miles/week

Enter your typical weekly total.

How often do you have a longer-than-usual driving day?

The day that breaks routines first.

How it works

OFFO in three steps

From listing URL to confident decision in under a minute

Step 1

Paste the listing

Copy any CarGurus, AutoTrader, Facebook Marketplace, or dealer URL.

Step 2

Get a verdict and top risks

See a deal score, price flags, and the 3 questions that decide whether this car is worth your time.

Step 3

Save, compare, or unlock the full breakdown

Save to My Garage to track listings, compare options, and get alerts.

Why OFFO

What OFFO actually checks

35 seconds. No sign-up. Things Carfax doesn't check.

OFFO runs 38 EV-specific signals on every listing — checking battery health, price vs. market, and whether the car fits your charging life.

Missing proof = red flag

No battery report? No service records? OFFO penalizes missing evidence — not just confirmed problems. Silence hides as much as a bad history report.

Battery health from mileage + age

OFFO estimates battery state of health using degradation curves even when the seller provides no report — then flags if the claimed range looks optimistic.

Routine fit, not just specs

Scores whether this EV fits your actual charging setup, commute, climate, and longest day. Cold winters cut range 20–30% — we calculate that for your conditions.

Price vs. real comps in your area

Compares the listing to verified comparable listings nearby, shows where the price sits in the distribution, and reports how many buyers are competing.

Negotiation script, ready to send

Generates a buyer-specific opening message and 3 scenario scripts tied to what was actually found in the listing. Not generic tips — copy-paste ready.

38 EV-specific risk signals

Checks for DC fast charging availability, odometer/VIN mismatches, dealer add-on pressure, and known model limitations against your specific use case.

New

Paste any used EV listing. Get a battery verdict.

Drop a CarGurus, AutoTrader, or Cars.com URL and OFFO extracts price, mileage, and VIN — then runs 38 EV-specific checks including battery health, charging fit, and open recalls before you ever call the dealer.

Step 1

Paste any listing URL

CarGurus, AutoTrader, Cars.com — OFFO extracts every field automatically. No copy-paste, no manual entry.

cargurus.com/Cars/listing/details/...
OFFO

Step 2

We scan the listing & photos

OFFO checks price against market data, reads the listing for red flags, and analyses each photo for damage and missing angles.

Price vs market
VIN history signals
Photo angle coverage
Damage findings

Step 3

Get your verdict before the test drive

GREEN / YELLOW / RED verdict, negotiation script, questions to ask, and a pre-visit checklist — free, no account needed.

GREEN — Fair price, low risk
Scan a listing now

Free · No account required · Results in under 60 seconds

Trusted by thousands of EV buyers

From real Reddit threads, not case studies.

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✓ Real post

This 2022 Ford Mustang Mach‑E was listed as a 'Great Deal' at $24,255 — here's what the OFFO receipt actually showed

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✓ Real post

Dealer called this 2013 Tesla Model S a 'Good Deal' at $12,995… here's what the full OFFO receipt actually showed

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r/EVRoutine
✓ Real post

Just moved and thinking about an EV without home charging? Here's what actually ends up mattering.

108,023 views·Routine Fit check
r/EVRoutine
✓ Real post

Apartment dweller with no home charging, tows a small boat weekly, $25–40k budget — here's what EVRoutine recommends

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Deal Watch

Today's Best EV Deals

Curated EV listings sorted by best value (lowest price × mileage) — run analysis to see if it's a good deal.

Get alerted when prices drop

Save search filters and OFFO notifies you by email when matching EVs drop in price or a new GREEN listing appears.

Browse deals →

Your questions,
answered

Can't find what you're looking for?

Check out our Analyze tool or reach out.

Contact us

Run a battery health check on any used EV.

Paste a listing URL or VIN. Free, no account needed.

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trusted automotive data

Auto.dev
NHTSA
EPA Fuel Economy
NREL EV charging
AAA EV Studies

Used EV? Get a free battery health check.

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