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

Key Features

• 2 in 1 Tool for Engine & Battery: More than just an engine analyzer, the FOXWELL NT301 Plus car scanner goes beyond the NT301 and NT201 by adding a full car battery test—so you can check both engine faults and battery health in one scan tool. With a 36% larger 2.8" color display vs. 2.4" screens, making results easier to read. This obd2 scanner with battery tester qualifies as Climate Pledge Friendly—delivering pro-level performance while letting you make a greener choice.
• Fast Check Engine Light & CEL Reset: This code reader for cars and trucks quickly read DTCs, reset Check Engine Light, and display live data (RPM, coolant temp, fuel trim) in text and graphs. Supports freeze frame, onboard monitoring, component tests, and ECU info. Compatible with U.S. vehicles from 1996+, European models from 2001+, and Asian cars from 2005+ via the standard 16-pin OBDII port. Tip: Properly repair all detected issues before clearing codes. From battery health checks to OBD2 diagnostics, enjoy a seamless 2-in-1 experience — no need to change tools.
• Pro-level Battery Health Analysis: Avoid no-start situations—especially in cold weather—by checking battery condition before it fails. This diagnostic tool battery analyzer measures SOH, SOC, CCA, cranking voltage/time, and starter/charging performance with 20% higher accuracy, even below 0°C (32°F). Bold Good/Replace results show status at a glance, ideal for dark garages or roadside checks. Tips: Connect the battery cable firmly to the OBD2 diagnostic cable to start battery check. Works with flooded, AGM flat/spiral, EFB, and GEL types.
• DIY Battery Testing Made Easy: Skip unnecessary shop visits and surprise repair bills. With the NT301 Plus auto battery tester, you can check your battery’s health at home in minutes using professional-grade conductivity technology. Receive instant, accurate readings with heavy-duty clamps that ensure solid connections—whether your battery is weak, aging, or newly installed. One quick test often pays for the tool itself.
• LED Pass/Fail I/M Check: Run an instant I/M readiness test with one hot key press. Built-in Red-Yellow-Green LEDs with audio prompts give pass/fail status at a glance. The vehicle code reader includes DTC definitions to locate failing sensors without online searches, so you know exactly when your car is inspection-ready.
• Live Data + Record & Playback for Deeper Insight: This vehicle engine reader monitors real-time engine parameters to catch intermittent issues: RPM, sensor outputs, fuel trim, and more. The diagnostic scanner for vehicles supports data recording, playback, and PC printing of diagnostic reports—ideal for professional repairs faster and easier.
• Broad Compatibility: The NT301 Plus engine code reader supports major OBDII protocols, including ISO9141, KWP2000, J1850 VPW, J1850 PWM, and CAN. Note: Not support non-OBDII protocols, such as 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.
• FOXWELL Reliability: Backed by over 14 years of automotive diagnostic expertise, FOXWELL delivers trusted car scanners with free lifetime software updates, user-friendly design, and wide OBDII protocol support. A code scanner you can rely on—whether in your home garage or on the road.
• Improtant Notes: FOXWELL NT301 Plus car analyzer is an OBDII scanner for engine & 12 V 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).