JDiag BT300 Car Battery Tester – Ultimate Diagnostic Tool for 12V/24V Batteries

Precision Voltage Analysis
– Advanced microchip technology ensures accurate voltage readings (0-30V) with ±0.1% tolerance, detecting weak cells, sulfation, and internal shorts instantly.
Multi-Battery Compatibility
– Tests all 12V/24V lead-acid, AGM, gel, and deep-cycle batteries, including cars, trucks, boats, and solar power systems.
USB Data Export
– Export test reports via USB for PC analysis, ideal for fleet maintenance or professional workshops requiring documentation.
Rugged ABS Housing
– High-impact ABS shell with anti-slip grips and reinforced probe connectors for long-term durability in harsh garage environments.
One-Click Diagnosis
– Single-button operation delivers comprehensive results (CCA, SOC, SOH) in 3 seconds – no technical expertise needed.
Backlit LCD Screen
– Ultra-clear display with adjustable brightness for visibility in low-light conditions like underground parking or night road repairs.
Compact & Portable
– Pocket-sized design (150g) fits in glove compartments, perfect for roadside emergencies or mobile mechanics.
CE/FCC Certified
– Meets strict EU/US safety standards, ensuring reliable performance without risk of short circuits or false readings.
Global Voltage Support
– Auto-detects 110V/220V input via USB, making it travel-ready for international users.
3-Year Warranty
– Backed by industry-leading support, including free firmware upgrades for future battery tech compatibility.
Bulk Order Savings
– Wholesale pricing available for auto shops, dealerships, and export businesses – inquire for pallet discounts.