Overview
The FOXWELL BT301 is a compact 6V/12V battery tester for cars, motorcycles, and small equipment.
Whether you are troubleshooting a check engine light, preparing for an emissions test, or performing scheduled maintenance, the BT301 gives you the module access and service functions you need without booking a dealer appointment. On-screen menus walk you through each step, and stored scan reports help you track repairs over time.
Coverage: 140+ brands. Connectivity: WiFi + BT. Updates: Lifetime free.
Key Features
- 6V and 12V battery testing
- CCA, voltage, and internal resistance readings
- Quick go/no-go assessment
- Portable pocket-sized design
What You Can Diagnose
The BT301 helps you identify root causes faster by reading fault codes, live sensor values, and module status across the systems it supports:
- Cold cranking amps (CCA) vs rated specification
- State of charge (SOC) and state of health (SOH)
- Internal resistance and voltage under load
- Charging system/alternator output (where supported)
- Pass/fail guidance before replacing a battery
How to Use This Tool
Attach the clamps to the battery terminals (red to positive, black to negative). Enter the battery type and rated CCA if prompted. The tester runs a load analysis and displays voltage, internal resistance, and a replace/recharge/good recommendation within seconds — no vehicle connection required for standalone battery testers.
Vehicle Compatibility
6V and 12V lead-acid batteries in cars, bikes, ATVs, and lawn equipment.
Always verify that your exact year, make, model, and engine combination is supported before purchase — especially for service resets, bi-directional tests, and brand-specific modules. OBD2 port location is typically under the driver-side dashboard on U.S. vehicles from 1996 onward.
Who Should Buy This
Multi-vehicle households and mobile technicians who need a fast battery check.
If you regularly work on your own vehicles, run a small repair shop, or buy used cars to flip, the BT301 pays for itself quickly compared to per-visit dealer diagnostics.
Why Choose FOXWELL
FOXWELL has built a reputation for professional-grade automotive diagnostics at a fraction of dealer scan-tool prices. Unlike many subscription-based tools, FOXWELL scanners include free or lifetime firmware updates, clear on-screen DTC definitions, and responsive customer support — making them a practical choice for home garages and independent shops alike.
Connectivity & Software Updates
Standalone. N/A. Keep firmware current to maintain the widest vehicle coverage and access to newly added service functions.
