TOPDON BT300P 12V/24V Car Battery Load Tester – Precision & Reliability for Automotive Professionals

High-Precision Testing
Advanced microprocessor technology ensures accurate voltage, cold cranking amps (CCA), and internal resistance measurements for 12V/24V lead-acid, AGM, gel, and EFB batteries.
Rugged Industrial Design
Durable ABS housing with shock-resistant construction and an ergonomic grip for effortless handling in workshops, garages, or roadside emergencies.
Instant Diagnostics
Tests battery health, charge status, and starter/alternator performance in seconds via bright LCD with backlight for low-light conditions.
Wide Compatibility
Works seamlessly with cars, trucks, motorcycles, RVs, and marine batteries—ideal for mechanics, fleet managers, and DIY enthusiasts.
Data Safety & Portability
Non-invasive testing protects vehicle electronics; compact size (6.3 x 3.1 inches) fits in toolkits for on-the-go diagnostics.
No External Power Needed
Self-powered via battery clamps—zero setup hassle for quick checks at dealerships, auto shops, or home garages.
Upgraded Clamp Design
Heavy-duty copper alloy jaws with anti-slip grooves ensure secure connections, even on corroded terminals.
Future-Proof Software
Supports firmware updates via USB for evolving battery technologies, extending device longevity.
Global Voltage Support
Precision-tested for compatibility with vehicles in North America, Europe, and Asia (12V/24V systems).
One-Touch Operation
Simplified interface with audible alerts for bad batteries—minimal training required for technicians or beginners.
Trusted by Pros
Lab-certified for ±0.5% voltage accuracy, backed by TOPDON