FOXWELL BT301 Car Battery Tester 12V, Battery Load Tester 100-2000CCA Automotive Battery Tester Digital Alternator Tester Cranking Charging Checker for Car Marine Truck SUV ATV, Upgraded of BT100

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🏆 Professional Accuracy You Can Trust — Upgraded from the trusted BT100, the FOXWELL BT301 delivers up to 99.9% accurate results using advanced conductivity testing. Customers consistently compare its performance to the diagnostic results typically provided by high-cost repair shops, helping you make confident GOOD or BAD decisions. All-in-One Battery, Starter & Alternator Test — One compact tool does it all. Instantly checks battery health (SOH, SOC, CCA), evaluates the cranking system, and analyzes the charging system (alternator output, loaded & no-load voltage)—saving time, money, and unnecessary replacements. Fast, Easy & Beginner-Friendly — No learning curve required. Simply connect the clamps and get clear GOOD / BAD results in seconds. The intuitive design makes this 12V battery tester perfect for DIYers, beginners, and professionals alike—accurate results without complicated procedures. Reliable Winter Diagnostics — Cold weather can weaken batteries, leading to unexpected no-starts. The BT301 detects hidden battery issues before you drive, reducing the risk of disruptions. Powered by the battery being tested, it requires no external power and works even in freezing temperatures. The 6.5ft cable lets you test from the driver’s seat, so you stay warm and avoid stepping out into the cold. Wide 12V Battery Compatibility — Accurately tests 12V flooded, AGM (flat & spiral), EFB, and GEL batteries (not for lithium). Compatible with cars, SUVs, pickup trucks, motorcycles, boats, RVs, tractors, ATVs, UTVs, lawn mowers, and other 12V vehicles. Designed for consistent performance across all climates, making it a dependable car, AGM, and marine battery analyzer. Large Color Display & Practical Design — Features a large 2.8" color screen that’s easy to read—even in dark garages. The 6.5 ft cable allows safe testing from the driver’s seat without assistance, while heavy-duty clips ensure stable connections and accurate readings. Trusted FOXWELL Brand — With 17 years of experience in automotive diagnostics and over 12 years focused on battery testing, FOXWELL is trusted by mechanics and DIY users worldwide. Built on continuous R&D and real-world feedback, the BT301 reflects FOXWELL’s commitment to professional-grade accuracy, durability, and long-lasting performance.