Test It. Print It. Prove It. The Topdon BT300P is a professional-grade diagnostic tool designed for technicians who need to provide tangible proof of battery status to their customers. Featuring a built-in thermal printer, you can test a battery and print a hard-copy receipt in seconds, increasing customer trust and speeding up repair approvals.

Beyond printing, the BT300P is a powerhouse tester covering 100 to 2000 CCA. It utilizes advanced conductivity technology to perform safe, fast, and accurate tests on the Battery, Cranking System, and Charging System.

Why Choose the BT300P?

• ✓ Integrated Printer: Print results immediately.
• ✓ Full Analysis: Battery, Starter & Alternator tests.
• ✓ Wide Coverage: Flooded, AGM, GEL, EFB.
• ✓ Safety First: Spark-free & Reverse Polarity protection.

Built-In Thermal Printer

The standout feature. Uses standard thermal paper to print diagnostic reports instantly. Documentation includes battery state of health, state of charge, and internal resistance—essential for warranty claims or customer transparency.

Cranking & Charging Tests

Go beyond the battery. The BT300P tests the starter motor’s cranking voltage and analyzes the alternator’s charging output (including ripple testing) to rule out system faults.

Broad Battery Coverage

Compatible with 12V Lead-Acid batteries including Regular Flooded, AGM Flat Plate, AGM Spiral, GEL, and EFB. Tests batteries rated between 100 and 2000 CCA.

Fast & Accurate

Utilizes advanced conductivity testing technology to deliver results in seconds with 99.5% accuracy. It can even test batteries that are discharged down to very low voltage levels.

Color Display

Features a bright 2.4-inch color screen that is easy to read in bright daylight or dark garages. The intuitive interface ensures operation is simple for any skill level.

Rugged & Safe

Housed in durable, oil-resistant plastic with spark-proof copper clamps. Includes reverse polarity protection to prevent damage to the tool or vehicle if connected incorrectly.