1. Inngangur
This manual provides detailed instructions for the safe and effective operation of your FOXWELL NT630 Plus diagnostic tool and FOXWELL BC521 12V 5A battery charger, tester, trickle charger, and desulfator. Please read this manual thoroughly before use and retain it for future reference.
The FOXWELL BC521 is a versatile 4-in-1 device designed for 12V lead-acid batteries (AGM, GEL, EFB, Flooded). It charges, tests, desulfates, and maintains batteries. The FOXWELL NT630 Plus is a professional diagnostic scanner for ABS and SRS systems, capable of reading and clearing codes, displaying live data, and performing specific tests.
2. Öryggisupplýsingar
Always observe the following safety precautions to prevent injury or damage to the devices or vehicle:
- Notið augnhlífar og hlífðarfatnað þegar unnið er með rafhlöður.
- Ensure adequate ventilation when charging batteries to prevent gas accumulation.
- Reykið ekki og leyfið ekki neistum eða loga að vera nálægt rafhlöðum.
- Avoid touching battery terminals or cables with bare hands.
- Keep the devices away from water, oil, and extreme temperatures.
- Ekki reyna að taka tækin í sundur eða breyta þeim.
- Refer to your vehicle's service manual for specific safety procedures related to your vehicle.
3. Innihald pakka
Gakktu úr skugga um að allir hlutir séu til staðar í pakkanum þínum:
- FOXWELL NT630 Plus Diagnostic Tool
- FOXWELL BC521 Battery Charger/Tester
- OBD-II Connection Cable (for NT630 Plus)
- Rafhlaða Clamps (Red and Black, for BC521)
- Power Cord (for BC521)
- Notendahandbók (þetta skjal)
4. Vöru lokiðview
4.1 FOXWELL BC521 Battery Charger/Tester
The BC521 combines multiple functions for 12V lead-acid batteries. It features an intuitive display and control buttons for selecting modes and viewstöðu rafhlöðunnar.

Image: FOXWELL BC521 Battery Charger and Tester with its main menu displayed and battery clamps. This device offers multiple functions including quick charging, standard charging, maintainer mode, battery test, cranking test, and alternator test.
4.2 FOXWELL NT630 Plus Diagnostic Tool
The NT630 Plus is designed for advanced vehicle diagnostics, specifically for Anti-lock Braking System (ABS) and Supplemental Restraint System (SRS) issues. It connects to your vehicle's OBD-II port.

Image: FOXWELL NT630 Plus Diagnostic Tool with its screen displaying diagnostic options, connected to a vehicle's OBD-II port. The device is used for reading and clearing codes, live data, and bidirectional tests.
5. Uppsetning
5.1 Setting up the FOXWELL BC521 Battery Charger/Tester
- Tengjast við rafhlöðu: Ensure the vehicle ignition is off. Connect the red positive (+) clamp við jákvæða rafgeymispólinn og svarta neikvæða (-) pólinnamp við neikvæðu rafhlöðuna.
- Tengjast við rafmagn: Plug the BC521's power cord into a standard AC outlet (100-240V).
- Upphafsstilling tækis: The BC521 will power on and perform a self-check. The display will show the current battery status.
5.2 Setting up the FOXWELL NT630 Plus Diagnostic Tool
- Finndu OBD-II tengið: The OBD-II port is typically located under the dashboard on the driver's side.
- Tengja snúru: Plug the NT630 Plus's OBD-II cable into the vehicle's OBD-II port.
- Kveikt á: The NT630 Plus will power on automatically once connected to the vehicle.
6. Notkunarleiðbeiningar
6.1 Operating the FOXWELL BC521 Battery Charger/Tester
The BC521 offers charging, testing, and maintenance functions. Use the navigation buttons on the device to select desired options.
6.1.1 hleðslustillingar
Select the appropriate charging current (1A, 3A, or 5A) based on your battery's capacity and charging requirements. The 8-stage smart charging process optimizes battery performance and longevity.

Mynd: Skýringarmynd sem sýnir 8-stage smart charging process of the FOXWELL BC521, including Desulfation, Soft Start, Bulk, Absorption, Analyse, Repair Mode, Float, and Pulse stages, showing voltage og straumferlar.
- Afsúlfunarefni: Revives weak batteries by breaking down lead sulfate crystals.
- Mjúk byrjun: Gradually begins charging to protect the battery.
- Magn: Charges the battery at maximum current until approximately 80% capacity.
- Frásog: Gjöld samkvæmt ákvörðunasing current to bring the battery to 100%.
- Greina: Tests the battery's ability to hold a charge.
- Viðgerðarstilling: Applies a pulsed current (0.8A) to restore battery health and extend lifespan.
- Fljóta: Maintains the battery at full charge with a constant voltage.
- Púls: Skjár rafhlaða voltage and provides a pulse charge when needed to maintain optimal charge.

Image: Comparison display of battery health before and after using the FOXWELL BC521, showing improvements in health percentage, charge, internal resistance, and CCA values.
6.1.2 Rafhlöðuprófun
The BC521 provides accurate real-time diagnostics for 12V batteries.
- Rafhlöðupróf: Tékka árgtage, State of Health (SOH), and internal resistance.
- Sveifpróf: Evaluates the battery's ability to start the engine.
- Rafallprófun: Assesses the vehicle's charging system performance.

Image: Screenshots from the FOXWELL BC521 showing results for Battery Test (Health, Charge, Internal Resistance, Rated CCA), Cranking Test (Time, Voltage), and Alternator Test (Loaded, Unloaded voltagog).
6.2 Operating the FOXWELL NT630 Plus Diagnostic Tool
Once connected to the vehicle's OBD-II port, the NT630 Plus will display the main menu. Use the directional buttons and 'OK' button to navigate.
6.2.1 Grunngreiningaraðgerðir
- Lesa kóða: Sækir greiningarkóða (DTC) úr stjórneiningum ökutækisins.
- Hreinsa kóða: Erases DTCs from the vehicle's memory. Ensure the underlying issue is resolved before clearing codes.
- Lifandi gögn: Displays real-time sensor data from the vehicle, useful for diagnosing intermittent issues.
- Bidirectional Test (for ABS): Allows the tool to send commands to vehicle components to test their functionality (e.g., cycling ABS solenoids).
- S-M-O-G Test: Performs various tests related to emissions monitoring systems.
6.2.2 ABS & SRS Diagnostics
The NT630 Plus specializes in diagnosing issues within the Anti-lock Braking System (ABS) and Supplemental Restraint System (SRS, airbags).

Image: FOXWELL NT630 Plus screen showing a list of common ABS and SRS diagnostic capabilities, including checking wheel speed sensor issues, ABS control module faults, wiring/connection faults, brake fluid levels, sensor malfunction locations, and damaged clock spring checks.
- Wheel Speed Sensor Issues: Identifies faults with individual wheel speed sensors.
- ABS Control Module Fault: Diagnoses problems within the ABS control unit.
- Wiring or Connection Faults: Helps pinpoint electrical issues in the ABS/SRS circuits.
- Low or Contaminated Brake Fluid: Can indicate issues related to brake system health.
- Sensor Malfunction Location: Provides specific location of faulty sensors.
- Damaged Clock Spring Check: Verifies the integrity of the clock spring, crucial for airbag functionality.

Image: FOXWELL NT630 Plus screen displaying real-time graphical data for engine revolutions per minute (RPM) and front right wheel speed, indicating its capability to quickly detect and monitor wheel sensors.
7. Viðhald
- Þrif: Þurrkið tækin með mjúkum, þurrum klút. Notið ekki slípiefni eða leysiefni.
- Geymsla: Store the devices in a dry, cool place, away from direct sunlight and extreme temperatures.
- Kapalumhirða: Inspect cables regularly for damage. Do not bend or crimp cables excessively.
- Hugbúnaðaruppfærslur: Check the FOXWELL official website periodically for software updates for the NT630 Plus to ensure optimal performance and compatibility with new vehicle models.
8. Bilanagreining
8.1 FOXWELL BC521 Troubleshooting
- Kveikir ekki á tækinu: Ensure the power cord is securely plugged into an AC outlet and the battery clamperu rétt tengd við rafgeymispólana.
- Hleðsla byrjar ekki: Staðfestu rafhlöðulokunamps are making good contact. The battery might be severely discharged; try a lower amperage setting or the repair mode.
- Villuboð birt: Refer to the device's screen for specific error codes or messages. Common errors include reverse polarity connection (ensure red to positive, black to negative) or a faulty battery.

Image: FOXWELL BC521 displaying icons for various protection features including Over Voltage Protection, Over Current Protection, Over Heat Protection, Reverse Connection Protection, Anti-Overcharge, and Anti-Overdischarge, which help prevent common issues.
8.2 FOXWELL NT630 Plus Troubleshooting
- Kveikir ekki á tækinu: Ensure the OBD-II cable is securely connected to the vehicle's OBD-II port. The vehicle's ignition should be in the ON position (engine off).
- SAMSKIPTAVILLA: Check the OBD-II cable for damage. Ensure the vehicle's battery has sufficient charge. Try connecting to a different vehicle to rule out a vehicle-specific issue.
- No codes found: If the check engine light is not on, there may be no active codes. Some issues might be pending codes or historical codes that require specific menu navigation to view.
9. Tæknilýsing
| Eiginleiki | Forskrift |
|---|---|
| Vöruheiti | FOXWELL NT630 Plus + FOXWELL BC521 |
| BC521 Input Voltage | 100-240V AC, 50/60Hz |
| BC521 Output Voltage | 12V DC |
| BC521 Charging Current | Selectable 1A / 3A / 5A |
| BC521 Battery Types | 12V Lead-Acid (AGM, GEL, EFB, Flooded) |
| BC521 Charging Stages | 8-Stage Snjallhleðsla |
| NT630 Plus Vehicle Connection | Standard 16-pin OBD-II port |
| NT630 Plus Diagnostic Focus | ABS, SRS (Airbag) Systems |
| Rekstrarhitastig | 0°C til 60°C (32°F til 140°F) |
| Geymsluhitastig | -20°C til 70°C (-4°F til 158°F) |
10. Ábyrgð
FOXWELL products are covered by a limited warranty against defects in materials and workmanship. The warranty period typically begins from the date of purchase. Please retain your proof of purchase for warranty claims. For specific warranty terms and conditions, refer to the warranty card included with your product or visit the official FOXWELL websíða.
11. Stuðningur
For technical assistance, product inquiries, or service, please contact FOXWELL customer support. You can typically find contact information on the official FOXWELL websíðunni eða í gegnum söluaðilann þar sem þú keyptir vöruna.
Websíða: www.foxwelltech.com (Fyrrverandiample, vinsamlegast staðfestu opinbera websíða)
Netfang: Vísaðu til opinberra aðila websíða fyrir stuðningstölvupóst.
Sími: Vísaðu til opinberra aðila websíða fyrir símanúmer stuðnings.





