VDIAGTOOL BT500
VDIAGTOOL BT500
Car Battery Tester
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Description
Description
VDIAGTOOL BT500 is a must-have for anyone needing reliable, fast, and accurate battery diagnostics. It’s compatible with 6V, 12V, and 24V batteries, including flooded, AGM, GEL, and EFB types, and works across a wide range of vehicles. With over 99.99% accuracy and safety features like reverse polarity protection and over-temperature protection, it ensures safe and precise results.
The tool is easy to use with plug-and-play functionality, a 2.8-inch TFT HD display, and visual LED indicators for quick battery health assessment. It also doubles as a starter and alternator tester, performing cranking and charging tests. Plus, it supports 12 languages, making it accessible worldwide. Whether you’re a professional or DIY enthusiast, the BT500 is essential for maintaining your vehicle’s battery and electrical system.
- Duty-free shipping from our overseas warehouses in US, MX, EU, UK, DE, FR, AU.
- Delivery within 2–5 business days.
- Free Shipping Worldwide
- Tax Free
- 3-Year Warranty
- Money-back Guarantee
- Lifetime Technical Support
🔧 All-in-One Automotive Battery Diagnostic Tool
The VDIAGTOOL BT500 is a powerful 6V/12V/24V battery tester and system analyzer, capable of testing batteries from 5 to 3000 CCA. Designed for a wide range of vehicles — from cars and motorcycles to boats and trucks — it's your go-to tool for reliable battery health analysis, starting system checks, and alternator testing.

🛠️Plug & Play & Easy To Use & Visualized Led Indicator
The VDIAGTOOL BT500 battery and alternator tester features practical LED indicators, green for good, yellow for normal, and red for poor, which can help users visually display battery health. In addition, the BT500 adopts a plug-and-play style, equipped with a large, easy-to-view 2.8-inch TFT HD display, and one-touch battery test/view/waveform buttons to start working directly according to your needs.
📊 Accurate & Professional Battery Testing
Gain instant insights into your battery’s health. The BT500 shows critical battery parameters including:
SOH (State of Health)
SOC (State of Charge)
Voltage
Internal Resistance
Cold Cranking Amps (CCA)
All presented in a clear interface with a 2.8-inch TFT HD display for easy viewing.
💥Visual LED Indicators & Intuitive Design
➤Interface:
SOH: State Of Health
SOC: State Of Charge
CCA: 5-3000 CCA
VOL: Resistance Test
➤Status:
✔️Green Light: 🟢Good
✔️Yellow Light: 🟡Charging
✔️Red Light: 🔴Poor
No extra setup needed. Just plug and test with the one-touch function keys and enjoy seamless operation.
🧰Starter & Alternator System Analyzer
Easily test your vehicle’s cranking performance and charging system:
Charging Test
➤Test content:
✔️Detect the Change in Battery Voltage
✔️Check & Analyze the Alternator's Charging System
➤Check Results:
✔️Normal
✔️Abnormal

Cranking Test
✔️Monitor the Cranking Voltage & Cranking Time
✔️Health check for the Starting System
➤Help you analyze the starting motor, including voltage and starting time, to check if the starting motor is working properly.

💡 Tip: Turn off all electrical accessories (headlights, A/C, stereo) before performing the charging test.
🌍Support 12 Languages
Auto battery tester BT500 can support 12 languages, including English, Chinese, Japanese, Korean, Italian, Dutch, German, Russian, Portuguese, Spanish, French, Polish, which can help users overcome language barriers and improve diagnostic efficiency.
🏆100% Safe To Use
Equipped with 100% high-quality safety copper clips, the BT500 battery checker tester has powerful safety protection functions:
1. Reverse polarity protection
2. Anti-spark function
3. Overvoltage protection
4. Over temperature protection
🌐Data Review and Printing
➤Data Review
➤Data Printing
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FAQs - BT500
Does VDIAGTOOL BT500 have a visual indicator light?
Does VDIAGTOOL BT500 have a visual indicator light?
VDIAGTOOL BT500 Battery and Alternator Tester offers a plug-and-play design, a large 2.8" TFT HD display, and a one-touch button for quick battery tests, viewing, and waveform analysis. An intuitive LED indicator shows battery health status: green (good), yellow (normal), and red (poor).
Why do my test results change every time I test?
Why do my test results change every time I test?
Changing test results can be caused by inputting incorrect battery parameters, such as the battery type, CCA value, or testing under different conditions.
What models is the BT500 suitable for?
What models is the BT500 suitable for?
The BT500 Car Battery Load Tester is compatible with all 6V, 12V, and 24V batteries ranging from 5-3000 CCA, including flooded, AGM flat, AGM spiral, GEL, and EFB batteries. It works for cars, light trucks, SUVs, vans, motorcycles, RVs, ATVs, trailers, boats, yachts, lawn mowers, and even golf carts. It supports most automotive battery standards like CCA, BCI, CA, MCA, JIS, DIN, and SAE.
Can it be used with lithium batteries?
Can it be used with lithium batteries?
Not suitable for lithium batteries.
Does VDIAGTOOL BT500 support printing?
Does VDIAGTOOL BT500 support printing?
Support data viewing and printing.