VDIAGTOOL BT300
VDIAGTOOL BT300
Car Battery Tester
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BT300 6V & 12V 5-3000 CCA Load Tester Starter Alternator Tester
⭐Key Feature⭐
【WIDE COMPATIBILITY】Universal 6V/12V Battery Testing Made Simple! The BT300 battery load tester works with virtually any lead-acid battery (VRLA or SLA), AGM, GEL, LSI from 5-3000 CCA - perfect for car, motorcycle, truck, SUV, boat and more. Enjoy precision adjustments with flexible CCA settings (±5 or ±50) for ultra-accurate results. One battery checker tester for all your vehicles - accurate, fast & reliable! (Note: Not compatible with lithium batteries)
【ONE-CLICK VOLTAGE WAVEFORM & BATTERY TEST】Get instant, precise battery test with this automotive battery tester! This auto battery tester delivers a real-time voltage waveform for ultra-detailed monitoring, while instantly measuring voltage, internal resistance, CCA, SOH, and SOC—all in one test. Whether your battery is in-vehicle or out, this 12v battery tester provides smart, actionable advice (recharge or replace) to prevent unexpected failure. No more guesswork—just fast, accurate result and peace of mind.
【CHARGING & CRANKING TESTS】Beyond battery testing, this car alternator tester performs cranking test to check whether the starter motor is cranking properly or not and charging test of the alternator to prevent overcharge or incomplete charge. No more surprise breakdowns - just reliable power when you need it most. For accurate results, please simply turn off all electrical devices during testing.
【PLUG & PLAY & EASY TO USE & VISUALIZED LED INDICATOR】Featuring with plug & play style, the BT300 battery and alternator tester comes with a 2.8” large & easy to-view TFT HD display, and a one-key battery test/review/waveform button to start working as you need directly, besides, the useful LED indicators show battery health conditions visually (Green: Good, Yellow: Normal, Red: Poor), supporting 12 languages setting.
【3-YEAR WARRANTY, 24/7 TECH SUPPORT, 60 DAYS NO QUESTION ASKED RETURN/REFUND】We offer a 3-year warranty, Lifetime technical support, and 30 Days of No-Question-asked NEW REPLACEMENT OR REFUND. Any questions or concerns, please reach us via 📥 service@vdiagtool.com
🚗 Extend your battery's life with regular checkups. 💰 Save hundreds on unnecessary mechanic visits.
Car batteries can fail without warning—even when they appear fully charged. Heat and daily driving can mask underlying issues, while cold weather or long periods of inactivity can leave you stranded. Don’t take the risk! The BT300 12V Battery Tester delivers fast, accurate results in seconds—so you can drive with confidence.
Battery Test & Charging Test & Cranking Test
Description
Description
WIDE COMPATIBILITY & EASY TO USE
The BT300 battery analyzer works with all 12V batteries (5-3000 CCA) including flooded lead-acid, AGM, GEL, SLA, LSI, and more, across a variety of vehicles such as cars, trucks, motorcycles, RVs, ATVs, boats, and golf carts. Its plug-and-play design features a 2.8” TFT HD display, one-click battery test button, and visual LED indicators (Green: Good, Yellow: Normal, Red: Poor) for quick and easy results.
COMPREHENSIVE TESTING
The BT300 performs real-time voltage waveform analysis, charging tests, and cranking tests to assess the vehicle’s battery, starter motor, and alternator performance. It helps detect overcharging or insufficient charging to prevent future issues.
SUPPORT & WARRANTY
Enjoy peace of mind with a 3-year warranty, 24/7 technical support, and a 60-day no-questions-asked return/refund policy. For assistance, contact us anytime at 📥 service@vdiagtool.com.
VDIAGTOOL BT300 supports 12 languages
VDIAGTOOL BT300 supports 12 languages
English, Simplified Chinese, Japanese, Korean, French, German, Polish, Russian, Spanish, Italian, Portuguese, and Dutch.
Why is VDIAGTOOL BT300 the must-have tool for you?
Why is VDIAGTOOL BT300 the must-have tool for you?
WIDE COMPATIBILITY
The BT300 works with all 12V batteries (5-3000 CCA), including flooded lead-acid, AGM, GEL, SLA, and LSI types for cars, trucks, SUVs, motorcycles, RVs, boats, and more. You can quickly adjust CCA to ±5 or ±50.
🚩 Note: Not compatible with lithium batteries.
VOLTAGE WAVEFORM & BATTERY TEST
Displays real-time voltage as a waveform for detailed analysis.
🚩 Note: Can test both in-vehicle and out-of-vehicle batteries.
CHARGING & CRANKING TESTS
Performs cranking and charging tests to assess the starter motor and alternator health.
🚩 Note: Turn off electrical devices during the charging test.
99.5% ACCURACY & FAST RESULTS
The BT300 delivers over 99.5% accuracy with results stored and displayed on-screen. Data can be printed by connecting to a computer.
EASY TO USE & LED INDICATORS
Plug-and-play with a 2.8” TFT display, one-button testing, and LED indicators (Green: Good, Yellow: Normal, Red: Poor). Supports 6 languages.
3-YEAR WARRANTY & 24/7 SUPPORT
3-year warranty, lifetime tech support, and 60-day no-questions-asked replacement or refund. Contact us at 📥 service@vdiagtool.com.
Delivery and Shipping
Delivery and Shipping
- Tax Free
- 3-Year Warranty
- Lifetime Technical Support
- Money-back Guarantee
- Fast and Free Shipping Worldwide
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🔋 Stay ahead of battery trouble – catch issues early, avoid costly repairs, and never get stranded again.
VDIAGTOOL BT300 Operation Guide
FAQ
Is our tool compatible with lithium batteries?
Is our tool compatible with lithium batteries?
Not suitable for lithium batteries
What models does our product apply to?
What models does our product apply to?
Compatible with cars, light trucks, SUVs, vans, motorcycles, RVs, ATVs, trailers, boats, yachts, lawn mowers, and even golf carts.
Can this product be used outside the car?
Can this product be used outside the car?
This car battery tester can be used for on-board or off-board batteries
How accurate is this product?
How accurate is this product?
The BT300 Car Battery Load Tester delivers accurate battery tests with over 99.5% precision. Test results can be viewed directly on the screen and saved. To print data, just connect the tester to a computer.
Is the BT300 compatible with all 12V batteries?
Is the BT300 compatible with all 12V batteries?
The BT300 battery analyzer is compatible with all 12V batteries rated from 5-3000 CCA.
Customer Reviews
Everything is okay
Like it
Simple to use.
Unit works great, confirmed my UPS battery is shot and my motorcycle and car batteries are good.
They arrived very quickly and in excellent condition! 100% recommended seller!
