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Start your one-stop shopping for automotive diagnostic tools here.
First-time Customer? Enjoy an Extra 5% off your first purchase with Fast Local Shipping🚚 & Expert Support!✨
✉️techsupport@acartool.com
It's complete. A tool that helps you understand whether you are going in the right direction or the wrong one.
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We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place your order, we will choose the most appropriate warehouse for you to ship to based on the availability of the item and your shipping address.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We currently offer duty-free shipping.
If you are charged import duties or customs fees upon delivery, don’t worry—we’ve got you covered. Just provide us with a copy of the payment receipt or photo proof, and we’ll reimburse the full amount to you when you receive the package.
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.
Whether you're working on a car, motorcycle, SUV, RV, ATV, trailer, boat, or even a golf cart, the BT500 supports a wide variety of lead-acid battery types (Flooded, AGM flat, AGM spiral, GEL, EFB) and battery standards like CCA, BCI, CA, MCA, JIS, DIN, and SAE.
⚠️ Note: Not compatible with lithium batteries.
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.
Easily test your vehicle’s cranking performance and charging system:
Cranking Test: Checks the starter motor's voltage and cranking time
Charging Test: Evaluates the alternator output and detects over/undercharging
💡 Tip: Turn off all electrical accessories (headlights, A/C, stereo) before performing the charging test.
Equipped with high-quality copper clamps, the BT500 includes:
Reverse polarity protection
Anti-spark protection
Over-voltage protection
Over-temperature protection
Designed with a smart chip to ensure 99.99% accuracy and ultimate safety during testing.
Easily assess battery condition with LED indicators:
🟢 Green – Good | 🟡 Yellow – Charging | 🔴 Red – Bad
No extra setup needed. Just plug and test with the one-touch function keys and enjoy seamless operation.
No matter where you are, the BT500 has you covered with 12 built-in languages, including English, Spanish, French, German, Japanese, Korean, Russian, and more.
Plus, enjoy free lifetime software updates to keep your tool up to date.
Store and review past test results or print them for records using the data review and print feature — perfect for mechanics or frequent testers.
Ready to test like a pro?
👉 Get the VDIAGTOOL BT500 and make battery diagnostics simple, safe, and smart.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
Orders are processed within 24 hours on business days after payment is confirmed.
Shipping warehouses: We have warehouses in the U.S., Canada, U.K., France, Brazil, and other countries. We will ship from the warehouse closest to your delivery address based on stock availability.
Estimated delivery time:
You may request a return/exchange within 30 days of delivery. We recommend keeping the shipping box and product packaging until you confirm you will keep the item.
We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
For return/exchange due to personal reasons, the buyer is responsible for return shipping fees.
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
👉 For full details, see our Shipping Policy , Returns & Exchanges at the bottom of the page.
💬 Feel free to contact us anytime if you have questions. We are committed to timely and smooth communication with our customers — your satisfaction is our top priority.
Get the latest updates on new products and upcoming sales!
Start your one-stop shopping for automotive diagnostic tools here.
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