Car Battery Tester Fault Diagnosis Instrument with 7-220A Current and 6-30V Voltage Measurement Range, Internal Resistance and Temperature Reading, 12V Power Supply, 15cm by 6cm by 3cm, Black
Car Battery Tester with 7-220A and 6-30V for Accurate Fault Diagnosis

This car battery tester is a practical tool for diagnosing the health of your vehicle's battery. It measures essential parameters such as current, voltage, internal resistance, and temperature, helping you identify potential issues before they become serious problems. Whether you are a professional mechanic or a car owner, this device provides reliable data to keep your car running smoothly. Its compact size and straightforward operation make it an indispensable addition to any garage or roadside emergency kit.
Comprehensive Measurement Capabilities

The tester is designed to cover a broad range of battery specifications, ensuring versatility across different vehicle types. With measurement ranges that suit most standard car batteries, you can trust the readings to guide your maintenance decisions.
Current and Voltage Range
Measure current from 7 to 220 amps, covering most passenger vehicles. The voltage measurement range of 6 to 30 volts with 0.1V accuracy ensures precise monitoring of battery state, even under load.
Internal Resistance and Temperature
Internal resistance measurement starts from 0.1 milliohms, providing insight into the battery's internal health. Temperature readings between -20 and 55 degrees Celsius help detect extreme conditions that may affect battery performance.
Capacity Support
The tester supports battery capacities from 3 to 220 ampere-hours, meaning it can handle small motorcycles up to larger trucks and SUVs. This wide range makes it a versatile choice for multiple vehicles.
Durable and Portable Design

The device is built for everyday use with a robust construction that withstands the occasional drop. Its slim profile (15cm x 6cm x 3cm) allows for easy storage and portability.
Compact Form Factor
At just 15 centimetres long, this tester fits easily in your hand or glovebox. The black finish gives it a professional look while resisting dirt and fingerprints.
Power Requirements
Powered by a standard 12V supply, this device can be powered directly from the battery it is testing, eliminating the need for separate batteries or adapters.
Intuitive Interface
The clear display shows all key measurements at a glance. Simple controls allow you to cycle through different parameters without confusion.
Practical Benefits and Value

Regular battery testing can save you from costly breakdowns and extend the life of your battery. By identifying weak points early, you can address them before they lead to failure.
Early Fault Detection
With the ability to read internal resistance and voltage, you can spot signs of sulfation or cell damage that might otherwise go unnoticed. This helps avoid unexpected starting problems.
Time and Cost Efficiency
Instead of guessing or relying on expensive professional tests, this device gives you immediate answers. It pays for itself quickly by preventing unnecessary battery replacements or emergency roadside assistance.
User-Friendly Operation
No technical expertise is required. Simply connect the clamps to the battery terminals and read the results. The tester provides straightforward data that anyone can interpret.
