FOXWELL NT809BT Bidirectional

FOXWELL BT301 6V/12V Car Battery Tester

Compact 6V/12V battery tester for cars, motorcycles, and lawn equipment. Instant health report with CCA and state-of-charge readings.

3.7
Price on Amazon$455.98

Amazon price checked Jun 14, 2026

Overview

Enhanced of BT100 Pro, More features! - Enjoy a new UI design with a vibrant digital screen for easier readability.

Vehicle Compatibility

The NT809BT provides mechanics and DIYers with 30+ specialized functions including ABS Bleeding, Oil Reset, EPB Reset, SAS Calibration, Throttle Matching, Injector Coding, DPF Regeneration, TPMS Reset, Window-Door Calibration, Transmission Adaptation, Suspension Reset, Battery Registration, and more. Perform professional-level maintenance and resets easily, saving over $1000/year in repair costs. Compatible with 1996+ OBD vehicles worldwide.

Works with ALL 1996 and newer OBD2 vehicles worldwide. The AutoVIN feature instantly identifies your car's make, model, and year—no manual input needed. Supports mainstream protocols including CAN FD, CAN, KWP, and DoIP for reliable diagnostics across most brands. Compatible with vehicles like Benz, BMW, Honda, Ford, Toyota, and many more.

Wide 12V Compatibility for All Your Vehicles: This auto battery checker supports a wide range of 12V battery types, including flooded, AGM (flat & spiral), EFB, and GEL batteries (not for lithium). It's compatible with cars, SUVs, trucks, motorcycles, boats, RVs, ATVs, UTVs, lawn mowers, and more, making it an all-around reliable tool for various vehicles and applications

Why Choose This Tool

Told you What you Need - The clear display shows you the battery's condition and advises if any action is needed—ideal for avoiding unexpected stalls on the road.

Easier to Use - Unlike traditional methods, this battery analyzer tester ensures a stable connection for more accurate testing.

FAQ

What is bidirectional control on the NT809BT?
Bidirectional control lets the scanner send commands to modules — cycling fans, retracting calipers, running injector tests — to verify repairs beyond reading codes.
How many vehicle brands does the NT809BT support?
The NT809BT supports 140+ car and light-truck brands with thousands of active tests and ECU coding on supported models.