Product description

Don't Get Stranded! Test Your Battery in Seconds & Avoid Costly Surprises

Never Face a Dead Battery Again!

✔ Avoid being stranded with a failed start on cold mornings. ✔ Catch battery problems before they leave you helpless.

✔ Extend your battery's life with regular checkups. ✔ Save hundreds on unnecessary mechanic visits.

1 ALL-IN-ONE TESTER 2 BATTERY TEST 3 CRANKING TEST 4 CHARGING TEST

1 FOR ALL BATTERY TYPES 2 FOR ALL YOUR VEHICLES

1 99.99% ACCURACY 2 RELIABLE IN ANY WEATHER

Easy to Use Automotive Battery Tester with Data & Waveform Review & Printing

1 EASY-TO-USE 2 REVIEWING & PRINTING 3 100% safe

Save Time and Prevent Battery Failures with This Digital 12v Battery Tester

• Is it safe to use the BT300 car battery tester and alternator tester?

  VDIAGTOOL BT300 6 volt battery tester safeguards your battery and most importantly vehicle electronic systems with 4 protection modes: Reverse Polarity Protection, Over Temperature Protection, Short Circuit Protection and Over Current Protection.

• Is the battery and alternator tester accurate?

  The BT300 car battery load tester 12v is quite accurate for lead acid batteries with accuracy up to 99.99%. You can also visually see the changes in voltage through the real-time waveform to make a more accurate judgment on the status of the battery.

• Why in-vehicle and out-of-vehicle tests are useful?

  Test batteries in vehicle and out of vehicle can meet different needs. In-vehicle testing helps evaluate how it performs within the vehicle's electrical system, and out-of-vehicle testing more accurately assesses the battery's condition & capacity.

• Does this battery load tester 12 volt automotive come with data review & printing functions?

  Just connect the small battery tester with the computer and the Data Printing function allows printing out battery testing results and/or voltage waveform records saved on the battery testers.

• Can this battery alternator starter tester work for 6v 12v batteries for cars and motorcycles?

  This car battery checker works on all 6v 12V batteries with ratings 100-3000 CCA, including Flooded lead-acid battery (VRLA or SLA), AGM, GEL, SLA, STANDARD LSI battery for cars, light duty trucks, SUVs, vans, motorcycles, RVs, ATVs, trailers, boats.

• 【KNOW YOUR BATTERY BEFORE IT DIES】Why risk being stranded? Test your car battery like a Pro today! BT300 car battery tester is your ultimate 6V/12V battery diagnostic solution for car, motorcycle. This professional-grade automotive battery tester delivers instant, comprehensive analysis - checking voltage, load, internal resistance, ripple, SOC, SOH, CCA and charging/cranking performance - all before battery failure strikes. All you need is just a powerful car battery load tester 12v automotive!

• 【WIDE COMPATIBILITY】Universal 6V/12V Battery Testing Made Simple! The BT300 battery tester automotive works with virtually any lead-acid battery (VRLA or SLA), AGM, GEL, EFB 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 12 volt car battery tester for all your vehicles - accurate, fast & reliable! (Note: Not compatible with Lithium Battery or Golf Cart Deep Cycle Battery)

• 【RELIABLE BATTERY TESTERS】Get instant, precise battery test with 12v auto battery tester! This digital battery analyzer delivers a real-time voltage waveform for detailed monitoring, while instantly measuring voltage, internal resistance, CCA, SOH, and SOC—all in one test. Whether your battery is in-vehicle or out, the 6 volt car battery tester provides smart, actionable advice (recharge or replace) to prevent unexpected failure. No more guesswork—just fast, accurate result and peace of mind.

• 【CRANKING & CHARGING TEST】Beyond battery testing, this car battery tester and alternator starter 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 and ensure correct battery type, standard, CCA value during testing.

• 【FAST TEST & 99.99% ACCURACY】Get lightning-fast, lab-grade accuracy with this battery analyzer tester – delivering reliable result with 99.99% precision in seconds! The plug & play battery checker tester features a 2.8" HD TFT display for crystal-clear reading, one-touch testing/review/waveform analysis, and intuitive LED health indicators (Green=Good, Yellow=Normal, Red=Poor). Connect the small car battery tester with the computer for printing – perfect for quick diagnostic or detailed report.