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đŠ No Code Needed-Automatic Extra Savings at Checkout! Buy 1 â 10% OFF Buy 2 â 12% OFF Buy 3 â 14% OFF
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đ BLACK FRIDAY IS LIVE đ
Automatic Applied at Checkout!
Buy 1 â 10% OFF
Buy 2 â 12% OFF
Buy 3 â 14% OFF
Enter the code at checkout:
đ” $200+ â $25 off (ACARBF25)
đ” $300+ â $45 off (ACARBF45)
đ” $400+ â $60 off (ACARBF60)
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Great
Perfect , already tested , compared with some more expensive testers its produce the same result , later i will come back with a video review
excellent easy to use reliable.
Super tester. I compared three different testers. Similar results. I recommend
We offer worldwide shipping and operate multiple local warehouses in the United States, Canada, Europe, the United Kingdom, Mexico, and Brazil, allowing us to provide faster and more reliable delivery with reduced transit times.
Orders are typically processed within 24 hours on business days (MondayâFriday). Based on product availability and your delivery address, we will ship from the nearest available warehouse to ensure the quickest delivery time.
Please note that if your shipping address is classified as a remote area by the carrier, an additional remote delivery surcharge may apply. This surcharge is not covered under our free shipping policy.
Last Update: 2025/11/09
Return & Exchange Policy
Most products in brand-new conditionâfree from scratches or damage caused by the customerâcan be returned or exchanged within 30 days of receipt. If the return or exchange is due to our error (for example, you received a wrong or defective item), we will cover the return shipping cost.
To initiate a return or exchange, simply contact our customer support and let us know the reason. We will guide you through the process and handle your request as quickly as possible. Once we receive and process your return or exchange, you will receive an email notification.
Refunds are usually processed within four weeks after we receive your return, though in many cases you may receive your refund sooner. This timeframe includes 5â10 business days for the carrier to deliver your return to us, 3â5 business days for us to process it, and 5â10 business days for your bank to complete the refund.
Last Update: 2025/11/09
We currently offer duty-free shipping to the US, EU, UK, and Canada.
If you are charged any import duties or customs fees upon delivery, donât worry â weâve got you covered. Simply provide us with a copy of the payment receipt or a clear photo as proof, and we will reimburse the full amount once your package is delivered.
Please note: Certain special promotions and clearance items are not eligible for duty reimbursement.
Last Updated:2025/11/09
The VDIAGTOOL BT300 is a professional-grade battery tester designed for 6V and 12V systems. It supports a wide CCA range (5â3000 CCA), allowing precise diagnostics across a wide variety of battery types including Flooded, AGM, GEL, and SLA â from cars and motorcycles to boats, trucks, and even golf carts.
âĄÂ Real-Time Waveform Display
Quickly visualize your batteryâs real-time voltage performance through a clear waveform graph on the 2.8â TFT HD display. With just one button, see how your battery behaves under load and monitor output changes instantly.

Beyond just a battery test, the BT300 also evaluates your vehicle's starter (cranking test) and alternator (charging test). Prevent undercharging, overcharging, or weak starts with accurate, actionable insights



Green = Good. Yellow = Normal. Red = Poor.
No guesswork needed â the BT300 features visual LED indicators that provide quick, easy-to-understand battery condition assessments, ideal for beginners and pros alike.

Get accurate readings in seconds. With 99.5%+ accuracy, results are stored in memory and can be reviewed on-screen. Want a hard copy? Simply connect to your PC and print.
đ Plug & Play Simplicity
No app. No calibration. Just connect and go. The BT300âs ergonomic design includes a single-button control and language support in 12 options for seamless use worldwide.
â 3-Year Manufacturer Warranty
â Lifetime Free Updates
â Free Global Express Shipping
â No Import Duties or Hidden Fees
For any inquiries, please reach out to us at đ„ techsupport@acartool.com
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.
đ For full details, see our Shipping Policy , Returns & Exchanges at the bottom of the page.
đŹ Feel free to contact us anytime if you have questions. We are committed to timely and smooth communication with our customers â your satisfaction is our top priority.
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