About TOPDON
TOPDON is an automotive diagnostics and battery-service brand founded in 2017, built by a team of automotive experts, technicians, and DIY gearheads around cloud-connected diagnostic hardware. The company's North American arm, TOPDON Technology USA, Inc, was established in 2019 and is headquartered in Rockaway, New Jersey. TOPDON now sells into more than 150 countries and has grown its catalog well beyond scan tools to include battery testers and chargers, jump starters, key programmers, thermal imagers, EV chargers, and ADAS calibration equipment -- backed by a team the company says numbers over 200 engineers.
Independent outlets have put TOPDON's battery-service hardware through hands-on testing: The Drive reviewed the TOPDON BT200 battery and charging-system tester, and Tool-Savvy tested the BT600. On RevRated, two TOPDON battery testers earn a spot in our own testing: the BT100 ties for the highest customer rating in our car battery tester roundup at 4.6 stars across more than 5,600 reviews, and the BT300P pairs 12V/24V dual-voltage testing with a built-in thermal printer aimed at battery-sales counters that need a documented, printable test result.
Brand website: topdon.us
What TOPDON makes
TOPDON's range runs wider than the products we review. The lines we know best from our own testing are marked with a star:
OBD2 & professional scan tools
handheld and bidirectional diagnostic scanners across 60+ vehicle brands
Battery testers & chargers
conductance testers with cranking/charging-system diagnostics -- featured on RevRated — featured on RevRated
Jump starters
portable lithium jump-start power banks
Key programmers
immobilizer and key-fob programming tools for mobile locksmiths and shops
Thermal imagers
handheld thermal cameras for automotive and general inspection use
ADAS calibration tools
shop-grade calibration rigs for advanced driver-assistance systems
Why we recognized TOPDON
The RevRated Top Brand recognition isn't paid for and can't be applied for. We award it to the brands whose products consistently stand out in our hands-on category reviews. TOPDON earned it on the strength of the products below, evaluated the same way every product on this site is: bought, run on real vehicles, and judged on merit.
TOPDON products we rated highly
TOPDON BT100 12V 100-2000 CCA Battery Tester
A color graphical display with a percentage health bar returns a plain 'good 87 percent' read instead of a raw CCA number, which non-technical drivers immediately understand. In our testing it ties for the highest customer rating in the roundup at 4.6 stars across more than 5,600 reviews, and it also tests cranking voltage and charging-system output alongside battery conductance, so a no-start gets diagnosed in under two minutes. Stamped steel clamps with copper-plated tips get a clean reading on corroded terminals on the first try.
Read the 9 Best Car Battery Testers of 2026 guide →
TOPDON BT300P 12V/24V Battery Tester with Built-In Thermal Printer
A built-in thermal printer hands a customer a paper test report at the counter -- the feature that, in our testing, closes battery sales and resolves warranty disputes with a documented CCA reading. 12V and 24V dual-voltage support covers passenger cars, motorcycles, and commercial diesel batteries from a single unit, and the display shows conductance, voltage, internal resistance, and health percentage together. Replaceable thermal paper uses standard 57mm stock, not a proprietary cartridge.
Read the 9 Best Car Battery Testers of 2026 guide →What earned TOPDON the recognition
- Two TOPDON battery testers earn recognition in RevRated's own car battery tester testing: the BT100 and the BT300P.
- The BT100 ties for the highest customer rating of any tester in our roundup, 4.6 stars across more than 5,600 reviews, the deepest review base among testers sharing that rating.
- The BT300P's built-in thermal printer and 12V/24V dual-voltage support make it the tester we point battery-sales counters and mixed passenger/commercial shops toward for documented, printable results.
- TOPDON's battery-service hardware has drawn hands-on testing from independent outlets outside its own storefront, including The Drive and Tool-Savvy.
- Founded in 2017 and grown into a diagnostics catalog spanning scan tools, battery testers, jump starters, key programmers, thermal imagers, EV chargers, and ADAS calibration equipment sold in more than 150 countries, with a US subsidiary headquartered in Rockaway, New Jersey since 2019.