FOXWELL NT301 Plus 2-in-1 OBD2 Scanner & 12V Car Battery Tester

$28.00 USD
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  • Same with NT301. Extra Battery Test — Upgraded from the NT301, the NT301 Plus code reader reads and clears engine codes just as fast as the classic you trust. But now, it also checks your 12V battery health. Think of the extra cost as cheap insurance against the high tow truck bill. As one user put it: "It paid for itself the first time I plugged it in." With a 36% larger 2.8” color display (vs. 2.4”), it delivers clearer results every time. Ideal for DIYers, car owners, home mechanics, used car inspection and anyone who wants to diagnose car issues with confidence before making a costly shop visit
  • Check Engine Light on? Fix it Yourself — Plug it in and the 2.8" color screen shows you the code and exactly what it means—no mechanic-speak, no decoding. You'll know what you're dealing with before you enter into a repair shop with this code reader for cars and trucks. Access live data like RPM, coolant temp, and fuel trim to pinpoint the problem. Saved money from taking it to the shop and spending over hundreds to figure out the reason. Pro Tip: You should fix the car issue before clearing the codes
  • Check Battery Health You Didn't Know You Needed — Don’t wait until your car won’t start. Taking few mintues to check battery health (SOH, SOC, cranking/starting power & charging system). Works with 12V lead-acid batteries: Flooded, AGM (flat/spiral), EFB, and GEL. This car battery tester will test your battery before daily commuting, road trips, after a jump-start, new battery keeps dying or vehicle sitting for weeks. Know whether to recharge, replace, or keep using your battery to avoid unnecessary battery replacement. Knowledge is power—and in this case, it's also a working car. Tips: Connect the battery cable firmly to the OBDII diagnostic cable to start battery check
  • Live Data + Record & Playback for Deeper Insight — This car diagnostics scanner monitors real-time engine parameters to catch intermittent issues: RPM, sensor outputs, fuel trim, and more. The obd scanner supports data recording, playback, and PC printing of diagnostic reports—ideal for professional repairs faster and easier
  • Know Your S-m-o-g Status & Find EVAP Leaks — Whether you're buying used, chasing a stubborn check engine light, or just want to be sure you'll pass your next s-m-o-g check—this car scanner diagnostic tool scan gives you answers in minutes. Run the I/M readiness test, check for stored codes the seller didn't mention, and test battery health. Some of you used it on a car was about to buy, saw a stored code, and passed. That kind of information pays for itself. Also works for EVAP leak detection—loose gas cap or cracked hose, you'll know before the shop tells you
  • Broad Compatibility with No Subscription, No APP — This engine code reader works with 1996+ U.S. vehicles, 2001+ European models, and 2005+ Asian cars via the standard 16-pin OBDII port, like Cars, Pickups, Motorcycles, ATVs & More OBD2 diagnostics. While it covers most makes/models, please note that it NOT fit for PRE-1996 vehicles or Fiat/ALFA/Lancia, or some models of the French PEUGEOT, Citroen, South Korea Ssangyong, Russia Lada, VAZ, UAZ, GAZ. Special protocols may need an extra connector cable, please confirm before purchase
  • Improtant Notes: FOXWELL NT301 Plus is an odb2 scanner for engine & 12V battery diagnostics only. It does not support ABS, SRS, transmission, key programming, oil reset, or battery registration. Not compatible with tire sensors or airbag codes. Works with 12 V batteries only, no load test, and no built-in battery. Fix car issues before clearing codes. Windows-only updates (not Mac/iOS)
ManufacturerFOXWELL
Included Components1 x Battery Clamp Cable, 1 x Carry Bag, 1 x FOXWELL NT301 Plus OBD2 Scanner Car Battery Tester, 1 x USB Mini Cable, 1 x User Manual & Quick Start Guide
Item Weight600 g
Model NumberNT301 Plus
Manufacturer Part NumberNT301 Plus
Power SourceCorded Electric
Operating SystemPlug and Play; Only support update with Windows system, not support MAC/IOS; 12V Battery Test Only
Screen Size2.8 inches
Native Resolution2.8''TFT color screen
Item Dimensions L x W x H3.7"L x 1.6"W x 5.71"H
Power Source TypeCorded Electric
Item Length Width Height3.7"L x 1.6"W x 5.71"H
Display2.8 inches

NT301 Upgraded: Pre-Check Engine Code + Test Battery in One Tool Before You Go.

The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

FOXWELL 2 in 1 OBD2 Scanner with battery tester

2 ways to know what's wrong with your car. Your battery will never warn you before it dies. Use the 2-in-1 NT301 Plus car scanner with battery tester for quick pre-drive checks to spot engine code, battery, starter, or charging issues before they interrupt your day. Keep your car always road-ready!

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See the 2-in-1 FOXWELL NT301 Plus in Action: Key Features Demo

  1. The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    Check engien light car code reader diagnostic tool

    Spot Engine & Battery Issues Early

    Check Engine Light on? No Warning about the Weak Battery?


    Plug it in and it quickly displays the cause of your check engine light and pre-check the battery health before you go. Tells you what's wrong and whether you can fix it yourself or not. Saved money from taking it to the shop and spending over hundreds to figure out the reason. Pro Tip: You should fix the car issue before clearing the codes.

  2. The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    FOXWELL obd2 scanner diagnostic tool NT301 Plus

    From NO-START to Road Trip Ready

    Your Battery will Never Warn You Before It Dies. Avoid Sudden Breakdown!


    Detecting the potential battery failures early, prevent unexpected roadside breakdowns, and save money by avoiding costly, unnecessary repairs. This battery tester automotive delivers full-scope testing—Battery Health Test, Starting Power Test, and Charging System/Alternator Test. When your car won’t start, after a jump-start, or before a long drive — test first, then decide what to do next.

  3. The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    FOXWELL OBD2 Scanner Battery Tester 12V Automotive

    DTC Look-up with Plain English Definitions

    No Idea about the Diagnostic Trouble Codes?


    Access a comprehensive DTC library packed with tens of thousands of detailed fault code definitions, such as the regular error codes: P0172/P0442/P0455/P0456 &etc. This code reader and scan tool pinpoints the root causes of issues, giving you clear explanations and actionable insights, so you can fix problems faster without guessing what the warning light means.

  4. The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    FOXWELL NT301 Plus OBD2 Scanner 12V Battery Tester

    Live Data Dashboard

    No Idea about the Real-time Engine Data?


    View engine RPM, sensor outputs, fuel trim, DTC triggers, and more in real time with clear, easy-to-read graphs that make diagnostics instantly understandable. With data print function, this code reader for car lets you easily save, share, or review your data—perfect for tracking issues, getting a second opinion, or keeping maintenance records organized.

  5. The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    Car Coverage for FOXWELL NT301 Plus

    Broad Compatibility

    Not Sure if the Car Scan Tool Work on Your Older Cars?


    FOXWELL NT301 Plus compatible with U.S. vehicles from 1996+, European models from 2001+, and Asian cars from 2005+ via the standard 16-pin OBDII port. Special protocols may need an extra connector cable, please confirm before purchase.

  6. The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    Check the car before inspection

    One-Key I/M Readiness Checking

    Check if Your Car is Ready for Annual E-missions Inspection


    Press the “I/M” button for an instant readiness check and immediately see whether your vehicle is prepared for an e-missions test—no guesswork, no hassle. This OBD scanner with battery testing is built for everyday drivers, offering clear guidance and quick results that boost your confidence before any inspection. Even beginners can use it with ease, helping you spot issues early, avoid unexpected repairs, and keep your car running at its best.

  • Is the FOXWELL NT301 Plus just a basic code reader?

    No. The NT301 Plus is a 2-in-1 OBD2 code reader and 12V battery tester combo. It reads and clears engine codes, diagnoses check engine light issues, and also checks battery health, starter performance, and charging system status in one auto scanner.

  • Will this work on older cars?

    This vehicle scanner works with 1996+ U.S. vehicles, 2001+ European models, and 2005+ Asian cars. And also supports testing 12V lead-acid batteries, including regular flooded, AGM flat plate, AGM spiral, EFB, and GEL batteries.

  • Is this easy to use for someone who's not a mechanic?

    Yes — thousands of people use it. The large screen walks you through every step, and you can do the diagnostic jods at home without a mechanic. Save hundreds on repairs. No phone pairing, app download, or subscription is needed.

  • How is the display and usability better than other 2-in-1 automotive obd-ii scanner diagnostic tool?

    The 2.8" color screen is larger than many similar car scanner diagnostic tool. It offers live data graphs and even print reports(need connect to PC), making diagnostics easier to understand and share with your mechanic.

  • How does this tool go beyond a regular vehicle code reader NT301?

    NT301 Plus is an upgraded version from NT301. Reads/clears error codes, shows live data, perfrom s-m-o-g & evap leak test. And plus SOH, SOC, Starter, and Charging system test—totally a complete car scanner.

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