1. Uvod
Welcome to the user manual for your FOXWELL BT301 Battery Tester and NT630 Plus OBD2 Scanner. This comprehensive guide provides detailed instructions on the setup, operation, maintenance, and troubleshooting of both devices. The BT301 is designed for testing 6V and 12V vehicle batteries, while the NT630 Plus offers advanced diagnostic capabilities for OBD2, Anti-lock Braking System (ABS), and Supplemental Restraint System (SRS/Airbag) in vehicles.
Please read this manual thoroughly before operating the devices to ensure correct usage and to prevent damage to the tools or your vehicle.
2. Sigurnosne informacije
Always observe the following safety precautions when working with vehicle electrical systems and diagnostic tools:
- Wear appropriate eye protection (safety goggles) and protective clothing.
- Osigurajte da je radni prostor dobro prozračen.
- Keep a fire extinguisher nearby when working with batteries.
- Avoid smoking or open flames near vehicle batteries.
- Do not touch hot engine parts or exhaust systems.
- Keep the devices dry and clean. Do not expose them to moisture or extreme temperatures.
- Only use the provided cables and accessories.
- Disconnect the devices from the vehicle when not in use.
3. Sadržaj paketa
Provjerite jesu li svi artikli prisutni u vašem paketu:
- FOXWELL BT301 Battery Tester Unit
- FOXWELL NT630 Plus OBD2 Scanner Unit
- OBDII Diagnostic Cable (for NT630 Plus)
- Baterija Clamp Cable (for BT301)
- USB kabel (za ažuriranja)
- Korisnički priručnik (ovaj dokument)
4. Proizvod je gotovview
4.1 FOXWELL BT301 Battery Tester
The BT301 is a dedicated 6V and 12V battery tester designed to accurately assess the health of your vehicle's battery, cranking system, and charging system. It supports various battery types including AGM flat plate, AGM spiral, GEL, EFB, and regular flooded batteries.

Slika 4.1: FOXWELL BT301 Battery Tester displaying its main menu options.
Key Features of BT301:
- Provjera stanja baterije: Provides a comprehensive analysis of battery condition.
- Test pokretanja: Evaluates the starter motor's performance.
- Ispitivanje sustava punjenja: Assesses the alternator and regulator's output.
- SOC Test: State of Charge test.
- SOH Test: State of Health test.
- Supports 6V and 12V batteries.
- Compatible with various battery types: AGM Flat Plate, AGM Spiral, GEL, EFB, Regular Flooded.

Slika 4.2: The BT301 Battery Tester demonstrating compatibility with multiple battery types.
4.2 FOXWELL NT630 Plus OBD2 Scanner
The NT630 Plus is a powerful diagnostic tool that provides full OBD2 functions, along with specialized diagnostics for Anti-lock Braking System (ABS) and Supplemental Restraint System (SRS/Airbag). It also includes advanced service functions such as ABS Auto Bleed, Steering Angle Sensor (SAS) Calibration, Oil Service Light Reset, and Electronic Parking Brake (EPB) Reset.

Slika 4.3: The FOXWELL NT630 Plus OBD2 Scanner (left) and BT301 Battery Tester (right).
Key Features of NT630 Plus:
- Potpune OBD2/EOBD funkcije: Read/Clear Codes, Live Data, Freeze Frame, I/M Readiness, O2 Monitor Test, On-Board Monitor Test, Component Test, Vehicle Info, Modules Present.
- ABS System Diagnostics: Reads and clears ABS fault codes, performs active tests, and supports ABS Auto Bleed.
- SRS/Airbag System Diagnostics: Reads and clears SRS fault codes, performs active tests.
- SAS kalibracija: Resetira senzor kuta upravljanja.
- Oil Service Light Reset: Resetira lampicu za servis ulja nakon izmjene ulja.
- Resetiranje EPB-a: Resets the electronic parking brake after maintenance.
- Automatic VIN identification.

Slika 4.4: Visual representation of the three main diagnostic systems covered by the NT630 Plus.
5. Postavljanje
5.1 Initial Setup for BT301
Connecting the BT301:
- Ensure the vehicle's ignition is off.
- Spojite crveni pozitivni (+) klamp na pozitivni pol akumulatora.
- Spojite crni negativ (-) clamp na negativni pol baterije.
- The BT301 will power on automatically.
5.2 Initial Setup for NT630 Plus
Connecting the NT630 Plus:
- Locate the vehicle's 16-pin Data Link Connector (DLC), usually under the dashboard on the driver's side.
- Ensure the vehicle's ignition is in the 'ON' position (engine can be off).
- Plug the OBDII diagnostic cable into the vehicle's DLC.
- Connect the other end of the cable to the NT630 Plus unit.
- The NT630 Plus will power on automatically.
6. Upute za rad
6.1 Using the BT301 Battery Tester
Kretanje glavnim izbornikom:
Use the arrow keys (Up, Down, Left, Right) to navigate through menu options. Press the ENTER button to confirm a selection and the NAZAD button to return to the previous screen. The JELOVNIK button typically returns to the main menu.
Performing a Battery Test:
- U glavnom izborniku odaberite BATERIJA i pritisnite ENTER.
- Select the appropriate battery type (e.g., Regular Flooded, AGM, GEL) and press ENTER.
- Input the battery's Cold Cranking Amps (CCA) rating, usually found on the battery label, and press ENTER.
- The BT301 will perform the test and display the results, such as battery voltage, measured CCA, and overall battery health (e.g., 'GOOD BATTERY', 'CHARGE BATTERY', 'REPLACE BATTERY').

Slika 6.1: Example of battery test results displayed on the BT301 screen.
Cranking System Test:
- U glavnom izborniku odaberite KRETANJE i pritisnite ENTER.
- Slijedite upute na zaslonu za pokretanje motora.
- The BT301 will analyze the cranking voltage and time, providing a result on the starter's performance.
Ispitivanje sustava punjenja:
- U glavnom izborniku odaberite PUNJENJA i pritisnite ENTER.
- Follow the on-screen prompts, which may include revving the engine to a specific RPM.
- The BT301 will measure the alternator's output and ripple voltage, što ukazuje na stanje sustava punjenja.
6.2 Using the NT630 Plus OBD2 Scanner
Kretanje glavnim izbornikom:
The NT630 Plus features function buttons (F1, F2, F3) for quick access, along with directional arrows, ENTER, NAZAD, i POMOĆ buttons. Use the arrow keys to navigate and ENTER za potvrdu odabira.
OBD2 Diagnostics:
- U glavnom izborniku odaberite EOBD(F1) or EOBD(F2) (depending on the specific menu layout) and press ENTER.
- Odaberite Čitaj kodove do view current, pending, and permanent diagnostic trouble codes (DTCs).
- Odaberite Jasne kodove to erase DTCs and turn off the Check Engine Light (MIL). Ensure the underlying issue is resolved before clearing codes.
- Odaberite Podaci uživo do view real-time sensor data from the vehicle's engine control unit (ECU).
- Odaberite Zamrzni okvir do view snimka podataka senzora zabilježenih kada se dogodio kvar povezan s emisijom.
ABS System Diagnostics:
- U glavnom izborniku odaberite ABS&Airbag i pritisnite ENTER.
- Odaberite ABS from the submenu.
- Choose options like Čitaj kodove, Jasne kodove, ili Podaci uživo to diagnose the ABS system.
- Za ABS Auto Bleed, select this function and follow the on-screen instructions carefully. This procedure helps remove air from the brake system after component replacement or fluid changes.

Slika 6.2: Visual guide to the ABS Auto Bleed function.
SRS/Airbag System Diagnostics:
- U glavnom izborniku odaberite ABS&Airbag i pritisnite ENTER.
- Odaberite SRS/Airbag from the submenu.
- Choose options like Čitaj kodove or Jasne kodove to diagnose the Supplemental Restraint System.

Slika 6.3: Nadview of diagnostic functions available for ABS and SRS/Airbag systems.
Special Functions (NT630 Plus):
- SAS kalibracija: Odaberite SAS from the main menu. This function is used to reset the steering angle sensor after steering system repairs or alignment. Follow the on-screen prompts carefully.
- Oil Service Light Reset: Odaberite RESET ULJA from the main menu. This function allows you to reset the oil service light after an oil change, ensuring the vehicle's maintenance schedule is correctly updated.
- Resetiranje EPB-a: Odaberite EPB from the main menu. This function is essential when servicing components of the electronic parking brake system, such as replacing brake pads. It safely retracts and re-engages the parking brake calipers.

Slika 6.4: Visual explanation of the SAS Calibration, Oil/Service Light Reset, and EPB Reset functions.
7. Održavanje
7.1 Održavanje uređaja
- Čišćenje: Koristite meku, damp krpu za čišćenje uređaja casing. Ne koristite abrazivna sredstva za čišćenje ili otapala.
- Skladištenje: Store the devices in a dry, cool environment, away from direct sunlight and extreme temperatures.
- Ažuriranja softvera: Periodically check the FOXWELL official website for software updates to ensure your devices have the latest vehicle coverage and functionalities. Connect the device to a computer using the provided USB cable for updates.
- Pregled kabela: Regularly inspect the diagnostic cables and battery clamps for any signs of damage or wear. Replace damaged cables immediately.
8. Rješavanje problema
If you encounter issues while using your FOXWELL devices, refer to the table below for common problems and their solutions.
| Problem | Otopina |
|---|---|
| Uređaj se ne uključuje. | For BT301: Ensure battery clamps are securely connected to the correct battery terminals. For NT630 Plus: Verify the OBDII cable is firmly connected to the vehicle's DLC and the ignition is ON. Check vehicle's fuse for the OBDII port. |
| NT630 Plus fails to link with vehicle. | Confirm the vehicle's ignition is ON. Check if the OBDII cable is properly connected. Ensure the vehicle is OBDII compliant (most vehicles from 1996 onwards). Try connecting to a different OBDII compliant vehicle to rule out device issue. |
| BT301 shows 'Battery Error' or inconsistent results. | Ensure battery terminals are clean and free of corrosion. Verify that the correct battery type and CCA rating were entered. Ensure a stable connection of the battery clamps. |
| Cannot clear DTCs with NT630 Plus. | Ensure the ignition is ON and the engine is OFF. If the underlying fault is still present, the codes will reappear immediately. Address the root cause of the DTCs first. |
| Zaslon je zamrznut ili ne reagira. | Disconnect the device from the vehicle/battery, wait a few seconds, and reconnect. If the issue persists, perform a software update if available. |
9. Specifikacije
9.1 FOXWELL BT301 Battery Tester
- Operativni svtage: 6 V - 12 V
- Testni raspon: 100-2000 CCA
- Prikaz: LCD s pozadinskim osvjetljenjem
- Radna temperatura: 0°C do 50°C (32°F do 122°F)
- Temperatura skladištenja: -20°C do 70°C (-4°F do 158°F)
9.2 FOXWELL NT630 Plus OBD2 Scanner
- Prikaz: Color TFT screen
- Operativni svtage: 8V - 18V (from vehicle battery)
- Povezivost: OBDII 16-pin DLC, USB
- Radna temperatura: 0°C do 60°C (32°F do 140°F)
- Temperatura skladištenja: -20°C do 70°C (-4°F do 158°F)
- protokoli: Supports all OBDII protocols (ISO9141-2, ISO14230-4, SAEJ1850, ISO15765-4)





