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VDIAGTOOL
Make Car Repair Easy & Inexpensive
Founded in 2018, VDIAGTOOL is driven by a passion for simplifying car diagnostics. Inspired by real-life frustrations, our founder assembled a team of over 200 engineers and mechanics with 20+ years of experience. Together, we’ve developed innovative tools trusted by professionals and DIYers in 50+ countries, ensuring smooth and safe journeys for all. Your car, our expertise—keeping you confidently on the road.
Looking Ahead:
- Continuous innovation and progress are the direction of our VDIAGTOOL future development.
- VDIAGTOOL will always adhere to produce high-quality products, make customers satisfied and get a good reputation.
Enterprise Spirit:
- Unity and Cooperation
- Continuous Innovation
- Quality & Customer First
- Maintain Sustainable Development
ALL-IN-1 POWER CIRCUIT TESTER
HOT BIDIRECTIONAL SCAN TOOL
V200 Pro 2-in-1 Probe Tester
V200 Pro Upgrade Kit
VDIAGTOOL HOT NEW RELEASE
TEST EASILY & QUICKLY
PROFESSIONAL SCAN TOOL
AUTOMOTIVE CIRCUIT TESTER
RECOMMEND PRODUCTS
NEW ARRIVALS IN 2026
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.
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.
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.
Easy to Use Automotive Battery Tester with Data & Waveform Review & Printing
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.
VDIAGTOOL
Make Car Repair Easy & Inexpensive
Founded in 2018, VDIAGTOOL is driven by a passion for simplifying car diagnostics. Inspired by real-life frustrations, our founder assembled a team of over 200 engineers and mechanics with 20+ years of experience. Together, we’ve developed innovative tools trusted by professionals and DIYers in 50+ countries, ensuring smooth and safe journeys for all. Your car, our expertise—keeping you confidently on the road.
Looking Ahead:
- Continuous innovation and progress are the direction of our VDIAGTOOL future development.
- VDIAGTOOL will always adhere to produce high-quality products, make customers satisfied and get a good reputation.
Enterprise Spirit:
- Unity and Cooperation
- Continuous Innovation
- Quality & Customer First
- Maintain Sustainable Development
ALL-IN-1 POWER CIRCUIT TESTER
HOT BIDIRECTIONAL SCAN TOOL
V200 Pro 2-in-1 Probe Tester
V200 Pro Upgrade Kit
VDIAGTOOL HOT NEW RELEASE
TEST EASILY & QUICKLY
PROFESSIONAL SCAN TOOL
AUTOMOTIVE CIRCUIT TESTER
RECOMMEND PRODUCTS
NEW ARRIVALS IN 2026
