When it comes to vehicle reliability, your battery’s health is not something you can afford to overlook. That’s why VDIAGTOOL created the BT500, a professional-grade automotive battery tester designed to deliver fast, accurate, and reliable diagnostics—right from your garage or workshop.

Designed for Accuracy, Built for Durability

The BT500 isn’t just another entry-level tester. It’s engineered with precision-grade components and advanced testing algorithms that allow it to provide accurate readings of voltage, CCA (Cold Cranking Amps), internal resistance, and overall battery health. Whether you're a DIY enthusiast or a professional technician, the BT500 ensures you can make informed decisions on whether to recharge, replace, or further test your battery or starting/charging system.

Its rugged housing is built to withstand tough garage conditions, drops, and temperature swings—because we know that vehicle diagnostics often happen in less-than-ideal environments. With a clear, high-contrast LCD display, the BT500 keeps information easy to read in both daylight and dim lighting conditions.

Professional Testing at Your Fingertips

The BT500 supports 12V batteries commonly found in most cars, SUVs, trucks, motorcycles, and even lawn equipment. It is compatible with regular flooded, AGM flat plate, AGM spiral, GEL, and EFB batteries, covering virtually every type used in today’s vehicles.

Key features include:

● Battery Test: Check battery health, state of charge, and internal resistance.

● Cranking Test: Evaluate the starting system by analyzing voltage behavior during startup.

● Charging System Test: Diagnose alternator performance and charging voltage stability.

● Real-Time Voltage Monitoring: Get live voltage readings to detect fluctuations or drops.

● Quick Results with Clear Explanations: No guesswork—results are shown in plain English with actionable suggestions.

No need for an external power source—the BT500 is powered directly by the battery it tests, so it's ready when you are.

Why Technicians and DIYers Trust VDIAGTOOL

At VDIAGTOOL, we’ve built our reputation by providing high-performance diagnostic tools that combine intuitive operation with professional-level capabilities. The BT500 is the result of that same commitment to quality, reliability, and user-focused design.

Whether you're testing before a road trip, inspecting used vehicles, or diagnosing an intermittent starting issue, the BT500 is an invaluable tool in your kit. With plug-and-play simplicity, even first-time users can get clear diagnostics in seconds—without needing to interpret complex codes or graphs.

You’ll also benefit from:

● Lifetime free software updates

● Three-year warranty

● 24/7 technical support

● Compact, portable design perfect for glove compartments or toolboxes

Final Thoughts

Don’t let a dying battery leave you stranded. With the VDIAGTOOL BT500 automotive battery tester, you can take control of your vehicle’s battery health with confidence. Trusted by professionals and built for everyday drivers, the BT500 brings dealership-level diagnostics into your hands—affordably and reliably.

Stay ahead of problems. Trust the BT500. Trust VDIAGTOOL.