AUTOOL BT660 Battery Tester with Built-in Thermal Printer

Ultra-Fast & Accurate Testing
Precisely measures battery voltage, internal resistance, and health status in seconds. Compatible with 12V/24V lead-acid, AGM, gel, and lithium batteries (3.7V-30V range).
Built-in Thermal Printer
Generates instant test reports with clear data—no messy wires or external devices needed. Ideal for quick diagnostics in auto shops, fleet maintenance, or roadside emergencies.
Rugged & Portable Design
Features a shockproof ABS casing and anti-slip grips. Compact size (180x85x45mm) fits easily in toolboxes or glove compartments.
One-Click Operation
Simplified interface with auto-recognition technology—perfect for both professionals and DIY enthusiasts.
Wide Compatibility
Works on cars, motorcycles, trucks, boats, and even solar power systems. Includes a 2.5m test cable for hard-to-reach batteries.
Global Wholesale Advantage
Direct factory pricing with bulk discounts. Stocked in multiple warehouses for fast international shipping.