Nexest Fast Bi-Directional Control Car Battery Tester

Professional-Grade Accuracy
Precisely measures voltage, cold cranking amps (CCA), and internal resistance with advanced digital algorithms, ensuring reliable diagnostics for all 12V lead-acid batteries (AGM, gel, flooded).
Bi-Directional Control Technology
Unique two-way communication allows real-time data exchange with vehicle ECUs, enabling fault code reading and system resets without additional tools—ideal for mechanics and DIY enthusiasts.
Rugged Industrial Design
Shockproof ABS housing with reinforced rubber grips and a high-contrast LCD screen (backlit for low-light garages) withstands workshop conditions. Gold-plated clamps ensure corrosion-free conductivity.
Instant Multilingual Results
Displays clear English diagnostics for quick interpretation of battery health, charging efficiency, and starter/alternator performance—perfect for roadside checks or fleet maintenance.
Future-Proof Compatibility
Works seamlessly with gasoline/diesel vehicles (2000+ models) including hybrids. Compact size (6.3" x 3.1") fits in glove compartments for on-the-go troubleshooting.
One-Touch Efficiency
Single-button operation initiates full-system scans in under 3 seconds. Includes auto-shutdown to preserve battery life during storage.
Bulk Order Advantage
Direct factory pricing ensures unbeatable value for auto repair shops, dealerships, or resellers stocking professional diagnostic tools.