🔋【INDUSTRY-LEVEL ACCURACY WITH 4-WIRE KELVIN TESTING】The ANCEL BST100 car battery tester uses the advanced 4-wire Kelvin method to eliminate cable resistance interference, delivering up to 99.8% accuracy in battery readings. This ensures reliable results for everyday drivers and professionals who need precise measurements to prevent unexpected battery failures

🔋【WIDE COMPATIBILITY FOR ALL 12V BATTERIES & GLOBAL STANDARDS】This battery tester supports all 12V 100–2000 CCA batteries, including standard lead-acid, AGM flat plate, AGM spiral, GEL, and other starting batteries. Compatible with 11 battery standards: CCA / IEC / EN / DIN / JIS / GB / SAE / MCA / BCI / CA — ensuring accuracy for any battery type found in cars, trucks, motorcycles, ATVs, boats, and more

🔋【3-IN-1 FULL SYSTEM TEST: BATTERY + CRANKING + CHARGING】The BST100 performs Battery Health Test, Cranking Test, and Charging/Alternator Test in one compact tool. It gives clear conclusions like Good / Normal / Attention / Replace, so even users with zero battery knowledge instantly know what action to take

🔋【SAFE NON-LOAD TESTING + BUILT-IN PROTECTION】Unlike load testers that push 40–80A through the battery, the BST100 uses a safe, IEEE-based conductance method that does not damage the battery plates. With reverse polarity protection, over-voltage protection, and loose-lead detection, every test is safe, stable, and accurate

🔋【LARGER, CLEARER BACKLIT DISPLAY + MULTI-LANGUAGE MENU】The upgraded large backlit LCD makes every reading easy to understand — even in bright sunlight or dim garages. With a simple button interface and 7 selectable languages, beginners can interpret every test result just as easily as a seasoned mechanic

🔋【COMPACT, DURABLE & ESSENTIAL FOR EVERY VEHICLE OWNER】The rugged and compact design makes it ideal for home garages, workshops, and on-the-road use. Whether you’re a DIYer, car lover, or professional technician, the BST100 gives you fast answers, prevents breakdowns, saves money on unnecessary replacements, and keeps your vehicle in top condition — a truly valuable, must-have battery tester