FOXWELL Upgrade NT301 Plus Review
Introducing the FOXWELL Upgrade NT301 Plus with Case, an all-in-one OBD2 Scanner and Battery Tester that brings advanced vehicle diagnostic capabilities right to your fingertips.
Designed for home car owners, beginners, DIY enthusiasts, and technicians alike, this versatile tool combines the features of the original NT301 with added 12V battery health, cranking, and charging system tests.
With easy, user-friendly operation, you can quickly identify and address common vehicle issues, saving both time and money on maintenance.
Equipped to read and clear codes, perform live data analysis, and conduct comprehensive battery diagnostics, the NT301 Plus ensures your vehicle stays road-ready while preventing inconvenient breakdowns.
Imagine having the power to diagnose your vehicle’s issues right in your garage!
The FOXWELL Upgrade NT301 Plus is your ultimate vehicle doctor, providing critical insights into your car’s battery health, starting, and charging systems.
This handy tool allows you to read and clear engine codes, view live data, and even performs quick emissions readiness tests with a single click.
A perfect addition to any home or auto shop toolbox, it ensures peace of mind and keeps unexpected repair costs at bay.
Whether you’re a seasoned mechanic or a car maintenance novice, the NT301 Plus will become your go-to tool for keeping your vehicle in top shape.
Discover the Convenient and Comprehensive “FOXWELL Upgrade NT301 Plus”
Do you want a tool that can save you trips to the mechanic and give you full control over your vehicle’s health? Meet the “FOXWELL Upgrade NT301
Plus with Case with OBD2 Extension Cable OBD2 Scanner Battery Tester 12V.” This versatile gadget might just be the ultimate diagnostic tool you’ve been looking for.
The Most Versatile Vehicle Doctor
Enhanced Version with More Features
The FOXWELL Upgrade NT301 Plus takes everything great about the original NT301 and cranks it up a notch. Think of it as the Swiss Army knife of car diagnostics. On top of the regular OBD functions, it brings 12V battery health, starting and charging system tests right to your fingertips.
Whether you’re a seasoned technician or a DIY newbie, this scanner makes locating common vehicle issues straightforward and stress-free. Plus, it saves you loads of time and money on maintenance.
Save on Maintenance Costs
By identifying vehicle problems before they become serious issues, you can avoid costly repairs. Instead of paying exorbitant fees to get your car checked at an auto shop, you can now do it right at home. This tool is designed for everyone—from casual car owners to professional technicians.
Additional Battery Test – Identifying a Failing Battery
Quick and Accurate Results
Have you ever been caught off guard by a dead battery?
The NT301 Plus can help you dodge that unpleasant surprise. With the additional battery test function, you can check your car’s battery health in just 3 seconds. It delivers critical information on the current state of your battery, so you won’t have to worry about roadside breakdowns.
Detailed Battery Health Information
The diagnostic tool goes beyond a simple battery status check. It provides detailed insights into your battery’s state of health (SOH), state of charge (SOC), voltage, current, and other essential parameters.
This information helps you understand your battery’s performance and lifespan, making it easier to decide whether it’s time for a replacement.

Advanced OBDII Modes & User-Friendly Operation
Comprehensive OBDII Functions
The car diagnostic scanner supports a wide array of OBDII functions.
You can read and clear codes (DTCs), turn off the check engine light (CEL), read live data, and retrieve your vehicle’s VIN. It also offers enhanced OBDII service modes like E-VAP leak detection and on-board monitor test.
One-Click I/M Readiness Key
For those who need to perform smog checks, the one-click I/M readiness key is a lifesaver. It performs a fast state emissions readiness test, ensuring that your vehicle is good to go. This feature makes it simple and convenient to stay on top of emissions requirements.
More Accurate 12V Battery Analyzer
Detailed Metrics for Various Batteries
The FOXWELL NT301 Plus displays an array of battery conditions such as SOH, SOC, voltage, current, rating, and analysis results. It works with various types of batteries, including regular flooded, AGM flat plate, AGM spiral, and GEL batteries ranging from 100 to 2000 CCA. This versatility ensures that you can use it on nearly any vehicle.
Essential Cranking and Charging Tests
The cranking test helps you determine whether your starter motor is functioning correctly, while the charging test checks the status of your charging system. These tests prevent damage caused by overcharging or incomplete charging, offering peace of mind and reliability for long drives.

Live Diagnostic Data Streams & Necessity Tool
Real-Time Data in Text and Graph Formats
One of the standout features of this diagnostic tool is its ability to display live vehicle sensor data in both text and graph formats. This allows you to focus on any suspicious or symptom-specific data parameters, helping you make precise and informed decisions about your vehicle’s health.
Data Playback and Printing
Not only can you view real-time data, but you can also playback and print data through your computer. This is incredibly convenient for later repair and analysis. Whether you’re troubleshooting a tricky issue or preparing for routine maintenance, having a record of diagnostic data is invaluable.
A Perfect Gift and a Home Necessity Tool
Ideal for Gifts
Considering that the FOXWELL NT301 Plus is both practical and versatile, it makes an excellent gift idea. Whether for a friend, husband, or family member, this tool is bound to be appreciated. Moreover, it’s a must-have for any home or auto shop toolbox, ensuring that you’re always prepared for any vehicle issues that come your way.
Portability and Ease of Use
The scanner comes with a convenient case and an OBD2 extension cable, making it portable and easy to use. You can store it in your car or garage without taking up much space. The user-friendly design means that even if you’re not a tech-savvy person, you can still operate it without any hassle.

Final Thoughts FOXWELL Upgrade NT301 Plus
Summary Table of Features
Here’s a quick summary to help you understand the comprehensive capabilities of the FOXWELL Upgrade NT301 Plus:
| Feature | Description |
|---|---|
| Enhanced OBD Functions | Covers all NT301 OBD functions plus 12V battery health, starting, and charging system test functions. |
| Battery Health Test | Identifies car battery, starting, and charging system problems with detailed metrics. |
| Advanced OBDII Modes | Supports read and clear codes, turns off CEL, reads live data, retrieves VIN, and offers enhanced OBDII service modes like E-VAP leak and on-board monitor tests. |
| One-Click I/M Readiness Key | Performs a fast state emissions readiness test for smog checks. |
| Versatile Battery Analyzer | Works on different types of batteries with 100 to 2000 CCA, including regular flooded, AGM flat plate, AGM spiral, and GEL batteries. |
| Live Data Streams | Shows real-time vehicle sensor data in text and graph formats, supports data playback and printing. |
Why Choose FOXWELL Upgrade NT301 Plus?
If you’re looking for an all-in-one vehicle diagnostic tool that’s both affordable and comprehensive, the FOXWELL Upgrade NT301 Plus is an excellent choice.
It’s designed to be user-friendly, making it ideal for home car owners, beginners, DIY enthusiasts, and even professional technicians. With this scanner, you’ll save time and money, and most importantly, be in complete control of your vehicle’s health.
So why wait? Equip yourself with the FOXWELL Upgrade NT301 Plus and drive with confidence knowing that your vehicle’s health is always in your hands.













