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TOPDON®’s BT300P is our newest 12V lead-acid vehicle battery tester with a Built-inPrinter. It can test 100to 2000Cold Cranking Amps (CCA)batteries.

It’s compatible with Flooded, AGM, GEL, and EFB batteries;  and has accredited standards, including CCA,JIS,EN, DIN, SAE, andIEC.

The BT300P is able to test a battery's actual CCA value, state of health, cranking system, and charging system. Designed with advanced technologies in conductivity, and high-grade rugged materials, it’s perfect for both the shop mechanic or DIY enthusiast to test accurately and safely.


Comprehensive & Versatile Battery Coverage.

  • Compatible with 4 battery types: Flooded, AGM, GEL, and EFB.

  • Accredited for 10 battery standards: CCA (100 to 2000), CA, BCI, MCA, DIN, IEC, EN, SAE, JIS, and GB.

Quick Start, Intuitive, Friendly, and Step-by-Step.

  • What more is there to say? TOPDON®’s BT300P is easy to use even for someone who has never tested batteries before.

  • It’s 2.4” attractive color display also sets it apart from other testers in its class.

  • What’s better than an effective tool? How about one that’s always a pleasure to work with?

All the Extras You Care About.

  • Multi-Language Support;

  • High Quality, Light Weight, Wear-Resistant Storage Bag;

  • 3 Free Rolls of Standard Printing Paper.

Test it & Print it. Have It Ready when You Need It.

  • The BT300P has a built-in printer which can prints test results within seconds. Whether you’re a professional providing service and documentation, or a meticulous car expert keeping a battery log, we know you’ll appreciate printing and having test results.

Portable, Reliable, Durable, and Tested

  • Weighing only a little more than 1 lb., TOPDON®’s BT300P works on the go just like you. You'll be ready to make that service call on the road, at your shop, and even late night helping your neighbor.


Working Voltage: @DC 9V-30V
Display: 2.4" Color
Cable Length: 31.5 inches
Working Temperature: -10℃ to 55℃
Storage Temperature: -20℃ to 75℃
Dimension: 8.19*3.94*1.49 inches
Weight: 16.76 oz.
Protection: Reverse Polarity Protection
Battery Type: 
Battery Standard: 


User Manual
Carrying Bag
Printer Paper 3 Rolls



One Year Warranty


30-Day Money-Back Guarantee

prop65  WARNING: Cancer and Reproductive Harm For more information go to www.P65Warnings.ca.gov