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

  • Based on 2,762 reviews
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Availability: 20 left in stock
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Arrives Sunday, Oct 18
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Features

  • 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? Plug it in and the 2.8" color screen shows you the code and exactly what it meansno 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 Dont wait until your car wont 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 powerand in this case, it's also a working car. Tips: Connect the battery cable firmly to the OBDII diagnostic cable to start battery check
  • See What Your Engine IS Doing 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 reportsideal for professional repairs faster and easier
  • 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)

Description

Don’t Just Read Codes—Check Battery Health Too. Before Problems Interrupt Your Day, Check Engine Codes + Battery Health in One Tool. FOXWELL adheres to the principle of "product-oriented, customer-centered". For thirteen years, we have been committed to creating OBD2 products that can truly solve problems quickly. With a professional R&D team and an independent innovative R&D system, we have been focusing on the development and provision of automotive diagnostic technologies, products and services. Our vision is "creating a better life experience for global car users". 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! 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. 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. 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. 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. 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. 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 it work with my vehicle? 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. NT301 Plus is a handheld, plug-and-play tool with a 2.8" color screen, which walks you through every step, and you can do the diagnostic jods without a mechanic. No app or subscription required. 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.

Brand: FOXWELL


Power Source: Corded Electric


Product Dimensions: 3.7"L x 1.6"W x 5.71"H


Operating System: Plug and Play; Only support update with Windows system, not support MAC/IOS; 12V Battery Test Only


Screen Size: 2.8 inches


Brand Name: FOXWELL


Manufacturer: FOXWELL


Included Components: 1 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 Weight: 600 g


Model Number: NT301 Plus


Manufacturer Part Number: NT301 Plus


Power Source: Corded Electric


Operating System: Plug and Play; Only support update with Windows system, not support MAC/IOS; 12V Battery Test Only


Screen Size: 2.8 inches


Native Resolution: 2.8''TFT color screen


Item Dimensions L x W x H: 3.7"L x 1.6"W x 5.71"H


Item Highlight: Check Engine Code Reader, Live Data, Battery Health/Cranking/Charging System Test, Diagnostic Tool for 1996+ OBDII Vehicle


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Oct 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • A must have if you work on your own vehicles.
A handy tool to have when those lights start coming on in your dash, the check engine light on my Dodge Charger was indicating that my vehicle was not ready to pass an emissions test, after plugging this code reader in, and discovering that my Charger was not showing any trouble codes, past, or present, it was just a matter of driving my car enough for the computer to re-program itself, having just purchased the car I had no idea of what the car had been through, this Foxwell OBD II Scanner immediately told me that at some point the battery cables had been disconnected for some reason, and when that happens, you have to re-set the control module by driving you vehicle under various conditions, the Foxwell scanner has already paid for itself in just one use, it also has a nice battery tester built into it so that you can see what condition your battery is in. This is one tool that every car or truck owner should familiarize themselves with, so you have some idea of what to expect if and when you need to get your vehicle repaired. Yes, I would recommend this Foxwell NT301 OBD2 scanner all day long. ... show more
Reviewed in the United States on September 25, 2026 by R. Myers

  • Must‑Have OBD2 Scanner For Any Truck Dad – Clear Codes Fast And Learn Your Truck
I used this FOXWELL scanner on my own truck and it honestly paid for itself the first time I plugged it in. Instead of guessing or running to a shop, I was able to read the codes right away, see what was going on, and clear them after I fixed the issue so I knew everything was good. The live data is what makes it powerful – you can actually watch what your sensors are doing while the truck is running, which helps you catch problems early instead of getting stranded or surprised at inspection time. I like that it’s simple enough to keep in the truck and use in a parking lot, but still feels like a serious tool, not a toy; the menus are clear and the buttons feel solid in the hand. For any dad driving older or high‑mileage vehicles, this is the kind of scanner that gives you confidence and saves you money every time that check engine light comes on. ... show more
Reviewed in the United States on June 11, 2026 by Adrian Ramirez

  • Keep out of the Heat!
I really liked this meter. Inexpensive and worked well for basic codes. And the I/M buttons great to test cars you might be buying if you live in a smog control city. The car battery tester worked well to. Nice to see if the batterys good or not. The other thing I'd like to see is fuel tank pressure sensor reading. I have so many problems with the Evap system. The bad thing was it stopped working, or actually there is no readout on the screen. I'll take the blame for that. I would leave it in my vehicle, winter months, no problem. Summer months, not a good idea. Guess the heat got to it? It was on the floor. But still got too hot? Anyways, it lights the screen when plugged into the OBD port, but that's it. Since there is no readout, you don,t know which way to click. I did contact the seller and they did reply quickly, but how do you reinstall something when you don't know where to click? I did get another meter of the same model. This one will stay out of the hot sun. It does have a port to update it, but I never have. ... show more
Reviewed in the United States on May 15, 2026 by Tri-Z

  • super easy
works great easy to read even for a novice mechanic. Love the battery tester too.
Reviewed in the United States on July 31, 2026 by Spongesnob

  • Scanner work perfect
I love it
Reviewed in the United States on September 25, 2026 by Darwenzer Lafleur

  • Plug n Play
My first time to use a car scanner and the OBD2 was easy to use and worked great. I had a check engine light and also ABS light, so I bought this scanner and it identified the problem on my 2012 Mercedes SLK 350 it was my left front speed senor. Bought part and that corrected the problem all warning lights out. This was a $400 to 600$ fix that I was able to do for a lot less. The Foxwell NT301 has already paid for itself. ... show more
Reviewed in the United States on May 22, 2026 by Jerry

  • Great price
Love it and not to pricey
Reviewed in the United States on September 16, 2026 by Keith Lewis Sr.

  • An average OBD2 scanner.
The Foxwell system, as a whole, is a great system to interrogate your car, but don't expect to learn anything from the manual. YOU WILL be heading to Youtube to figure out this device. The cost is acceptable. I have used other OBD2 devices that work simpler after putting your vehicle into the device. This is not that easy. The battery tester is great and is included. ... show more
Reviewed in the United States on June 15, 2026 by D. Michael Sanford

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