Our Commitment:

1. All products are shipped from U.S. local warehouses to shorten logistics cycles and improve delivery efficiency.
2. All products will be dispatched within 24 hours (excluding U.S. federal holidays) to ensure fast order processing.
3. All products come with a free return and exchange guarantee, allowing you to shop with no worries.

• 100% Quality Guaranteed
• 100% Satisfaction Guarantee
• 24-Hour Dispatch Guarantee
• 30-Day Full Refund Guarantee
• 36-Month FREE Warranty
• US-Based Seller

【Upgraded Built-in Thermal Printer】
OBDResource BM550 Ultra battery tester is a professional automotive battery diagnostic tool with built-in thermal printing. Instantly generate a paper-based report while checking the battery condition — no more manual recording or data loss. Comes with standard thermal paper and requires no ink.

【Advanced & Accurate Diagnosis】
Adopts the latest internal resistance measurement technology with OBDResource’s proprietary algorithm. Provides fast and accurate readings of voltage, internal resistance, SOH (State of Health), SOC (State of Charge), and CCA value. Delivers reliable data for mechanics and car owners to make informed decisions.

【Wide Compatibility】
Supports 6V / 12V / 24V batteries (100–2000 CCA). Compatible with lead-acid, AGM flat, AGM spiral, gel, and LiFePO4 batteries. Ideal for cars, SUVs, trucks, motorcycles, RVs, boats, and more.

【User-Friendly & Safe Design】
Features a 1.8-inch color screen for clear data reading, even in dim light. Built-in protections against reverse polarity, over-voltage, overheating, and sparks. Strong copper clamps ensure secure connections.

【Durable Industrial-Grade Material】
Made with high-quality ABS shell for durability in complex work environments. Rigorously tested for stability and long service life.

【Real Customer Feedback】

• "Tested my 850 CCA battery and the OBDResource tester showed 300 CCA. Store’s tester result was almost identical, proving its accuracy. The printout feature is extremely handy!"

• "Affordable compared to big brands. Tested multiple batteries from new to old, results were consistent with expectations."

• "Fast, accurate, and the printer works flawlessly. Highly recommend for shops or anyone managing multiple batteries."

【Why Choose OBDResource】
Battery testers with printers are often expensive — OBDResource offers professional-grade performance at a fraction of the cost, making it the perfect tool for both mechanics and DIY car owners.

PRODUCT PHOTOS:

Who is OBDResource?