The QOLTEC digital battery tester is a reliable assistant for drivers and service technicians. It uses advanced conductivity testing technology for accurate and reliable results with AGM, GEL, VRLA, EFB, and standard lead-acid (STD) batteries. Thanks to the large LCD display, all values are easy to read and you can identify the cause of issues within seconds without unnecessary diagnostic costs.

Key benefits:

• Simple, intuitive operation – suitable for beginners and professionals.
• Accurate diagnostics – measures voltage, CCA, internal resistance, condition, and state of charge.
• Support for 12V and 24V systems – for passenger and commercial vehicles.
• No external power required – powered from the tested battery.
• Compact and durable design – easily fits in the car glovebox.
• Reverse polarity protection – safe connection without risk of damage.

Tip for correct measurement: before testing, clean the battery terminals and clamps of dirt and corrosion, which can distort results. Regular checks of voltage and battery condition help you detect faults in time and avoid unpleasant surprises on the road.