{"product_id":"obdmonster-bm550u-battery-tester-with-printer","title":"OBDMONSTER BM550U Battery Tester with Printer 6V 12V 24V Automotive Load Tester \u0026 Alternator Analyzer (100-2000 CCA)","description":"\u003csection class=\"obdm-bm550u-product\"\u003e\n  \u003cstyle\u003e\n    .obdm-bm550u-product {\n      max-width: 1180px;\n      margin: 0 auto;\n      padding: 36px 18px;\n      font-family: Arial, Helvetica, sans-serif;\n      color: #1f1f1f;\n      line-height: 1.7;\n      background: #ffffff;\n    }\n\n    .obdm-bm550u-product * {\n      box-sizing: border-box;\n    }\n\n    .obdm-bm550u-product img {\n      width: 100%;\n      height: auto;\n      display: block;\n      border-radius: 16px;\n      margin: 0 0 34px;\n    }\n\n    .obdm-bm550u-hero {\n      background: linear-gradient(135deg, #050505 0%, #151515 58%, #300000 100%);\n      color: #ffffff;\n      padding: 42px 34px;\n      border-radius: 18px;\n      margin-bottom: 34px;\n      position: relative;\n      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with built-in thermal printer\"\u003e\n\n  \u003cdiv class=\"obdm-bm550u-hero\"\u003e\n    \u003cdiv class=\"obdm-bm550u-label\"\u003eOBDMonster Diagnostics \u0026amp; Tools\u003c\/div\u003e\n    \u003ch1\u003eOBDMonster BM550U \u003cspan\u003eBattery Tester with Built-In Printer\u003c\/span\u003e\n\u003c\/h1\u003e\n    \u003cp\u003e\n      A professional 6V \/ 12V \/ 24V automotive battery tester designed for battery health analysis, CCA testing,\n      cranking test, charging test, real-time voltage monitoring, and instant printed reports.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cp class=\"obdm-bm550u-intro\"\u003e\n    The \u003cstrong\u003eOBDMonster BM550U battery tester\u003c\/strong\u003e is built for repair shops, technicians, fleet maintenance teams,\n    used car inspectors, and serious DIY users who need fast, accurate, and documented battery test results.\n    With a built-in thermal printer, the BM550U allows you to test a battery and instantly print a professional report\n    showing key battery health data.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Instead of guessing whether a battery is weak, aging, undercharged, or still serviceable, the BM550U helps users\n    measure important data such as \u003cstrong\u003eSOH\u003c\/strong\u003e \/ State of Health, \u003cstrong\u003eSOC\u003c\/strong\u003e \/ State of Charge,\n    \u003cstrong\u003eCCA\u003c\/strong\u003e, voltage, internal resistance, cranking performance, and charging system condition.\n  \u003c\/p\u003e\n\n  \u003cdiv class=\"obdm-bm550u-highlight\"\u003e\n    \u003cp\u003e\n      \u003cstrong\u003eCore Advantage:\u003c\/strong\u003e The BM550U combines battery health testing, CCA analysis, cranking test,\n      charging test, real-time voltage waveform monitoring, safety protection, and a built-in thermal printer\n      into one compact professional automotive battery diagnostic tool.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eProfessional Battery Tester with Built-In Thermal Printer\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The standout feature of the OBDMonster BM550U is its \u003cstrong\u003eintegrated thermal printer\u003c\/strong\u003e. After completing\n    a battery test, technicians can print a physical test report immediately. This is especially useful for repair shops,\n    service advisors, mobile mechanics, fleet maintenance records, warranty documentation, and customer communication.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    A printed report gives customers a clear understanding of the battery condition. It also helps shops create a more\n    professional service process by providing visible proof of the test result rather than relying on verbal explanation.\n    No ink is required, and the package includes thermal printing paper so users can start testing and printing right away.\n  \u003c\/p\u003e\n\n  \u003cdiv class=\"obdm-bm550u-grid\"\u003e\n    \u003cdiv class=\"obdm-bm550u-card\"\u003e\n      \u003ch3\u003eBuilt-In Printer\u003c\/h3\u003e\n      \u003cp\u003e\n        Print battery health reports instantly, including voltage, CCA, internal resistance, SOH, SOC, and test results.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm550u-card\"\u003e\n      \u003ch3\u003e6V \/ 12V \/ 24V Support\u003c\/h3\u003e\n      \u003cp\u003e\n        Test batteries for motorcycles, cars, SUVs, pickup trucks, commercial vehicles, lawn equipment, and more.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm550u-card\"\u003e\n      \u003ch3\u003eCCA Battery Analysis\u003c\/h3\u003e\n      \u003cp\u003e\n        Supports 100–2000 CCA testing to help evaluate starting battery performance and overall battery condition.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eComplete Battery Health Analysis\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The BM550U is more than a basic voltage checker. It is a full automotive battery analyzer designed to help users\n    understand battery condition from multiple angles. A battery may still show voltage, but that does not always mean\n    it has enough capacity or cold cranking ability to start the vehicle reliably.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    By testing CCA, voltage, internal resistance, state of health, and state of charge, the BM550U helps identify whether\n    the battery should be recharged, replaced, or monitored. This makes it useful for preventive maintenance and for\n    diagnosing no-start, weak-start, or intermittent electrical complaints.\n  \u003c\/p\u003e\n\n  \u003cul class=\"obdm-bm550u-list\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSOH \/ State of Health:\u003c\/strong\u003e Evaluate the overall condition and aging level of the battery.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSOC \/ State of Charge:\u003c\/strong\u003e Check whether the battery is fully charged, undercharged, or needs charging.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCCA Value:\u003c\/strong\u003e Measure cold cranking performance from 100 to 2000 CCA.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e Confirm current battery voltage before service or replacement decisions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInternal Resistance:\u003c\/strong\u003e Help identify battery deterioration and performance decline.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0819\/3641\/7003\/files\/9.jpg?v=1773805937\" alt=\"OBDMonster BM550U car battery tester showing battery health analysis and printed test report\"\u003e\n\n  \u003ch2\u003e6V \/ 12V \/ 24V Battery Testing for More Applications\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The OBDMonster BM550U supports \u003cstrong\u003e6V, 12V, and 24V battery testing\u003c\/strong\u003e, making it practical for a wide\n    range of automotive and equipment applications. One tool can be used across many service situations, from motorcycle\n    batteries to passenger vehicles and selected commercial or heavy-duty applications.\n  \u003c\/p\u003e\n\n  \u003cdiv class=\"obdm-bm550u-feature-row\"\u003e\n    \u003cdiv class=\"obdm-bm550u-feature-box\"\u003e\n      \u003ch3\u003e6V Battery Testing\u003c\/h3\u003e\n      \u003cp\u003e\n        Suitable for many motorcycles, classic vehicles, small equipment, and selected low-voltage battery applications.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm550u-feature-box\"\u003e\n      \u003ch3\u003e12V Battery Testing\u003c\/h3\u003e\n      \u003cp\u003e\n        Ideal for cars, SUVs, pickup trucks, light trucks, powersports vehicles, and most standard automotive batteries.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm550u-feature-box\"\u003e\n      \u003ch3\u003e24V System Support\u003c\/h3\u003e\n      \u003cp\u003e\n        Useful for selected commercial vehicles, trucks, equipment, and maintenance environments where 24V systems are used.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm550u-feature-box\"\u003e\n      \u003ch3\u003eMultiple Battery Types\u003c\/h3\u003e\n      \u003cp\u003e\n        Supports common lead-acid battery types including regular flooded, AGM flat plate, AGM spiral, GEL, and EFB batteries.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eCranking Test and Charging System Test\u003c\/h2\u003e\n\n  \u003cp\u003e\n    A reliable battery test should not stop at static battery voltage. The BM550U also helps users evaluate the starting\n    and charging system. The cranking test helps determine whether the battery can support engine starting, while the\n    charging test helps check alternator output and voltage regulation.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    These functions are especially useful when diagnosing slow cranking, weak starting, intermittent no-start problems,\n    battery drain complaints, or suspected alternator charging issues.\n  \u003c\/p\u003e\n\n  \u003cdiv class=\"obdm-bm550u-dark-box\"\u003e\n    \u003ch2\u003eReal-Time Voltage Waveform Monitoring\u003c\/h2\u003e\n    \u003cp\u003e\n      The BM550U supports real-time voltage waveform monitoring, allowing users to observe voltage changes during battery,\n      cranking, and charging tests. This gives technicians a clearer picture of how the electrical system behaves under load.\n    \u003c\/p\u003e\n    \u003cul class=\"obdm-bm550u-list\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003eBattery Test:\u003c\/strong\u003e Evaluate battery condition before replacement decisions.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCranking Test:\u003c\/strong\u003e Check voltage drop and starting performance during engine crank.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCharging Test:\u003c\/strong\u003e Inspect alternator charging voltage and system stability.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eVoltage Monitoring:\u003c\/strong\u003e Observe live voltage behavior for more confident diagnostics.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eIndustrial-Grade Safety and Durable Clamp Design\u003c\/h2\u003e\n\n  \u003cp\u003e\n    Automotive battery testing requires stable contact and safe operation. The BM550U is equipped with heavy-duty clamps\n    designed for strong conductivity and secure connection during testing. Built-in protection features help improve safety\n    when working around vehicle battery systems.\n  \u003c\/p\u003e\n\n  \u003cul class=\"obdm-bm550u-list\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReverse polarity protection:\u003c\/strong\u003e Helps protect the tester if clamps are connected incorrectly.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOver-voltage protection:\u003c\/strong\u003e Helps reduce risk during abnormal voltage conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOver-temperature protection:\u003c\/strong\u003e Helps improve safety and reliability during operation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHeavy-duty clamp design:\u003c\/strong\u003e Provides better contact for more stable battery testing.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eKey Features\u003c\/h2\u003e\n\n  \u003cul class=\"obdm-bm550u-list\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBuilt-in thermal printer:\u003c\/strong\u003e Print professional battery test reports instantly without ink.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e6V \/ 12V \/ 24V support:\u003c\/strong\u003e Suitable for motorcycles, cars, trucks, equipment, and selected commercial applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e100–2000 CCA testing range:\u003c\/strong\u003e Analyze cold cranking performance for a wide range of starting batteries.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBattery health analysis:\u003c\/strong\u003e Measure SOH, SOC, voltage, CCA, internal resistance, and overall battery condition.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCranking test:\u003c\/strong\u003e Evaluate starting performance and voltage drop during engine crank.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCharging test:\u003c\/strong\u003e Help diagnose alternator output and charging system condition.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReal-time voltage waveform:\u003c\/strong\u003e Monitor voltage changes for more precise electrical system analysis.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMultiple battery type support:\u003c\/strong\u003e Compatible with regular flooded, AGM flat plate, AGM spiral, GEL, and EFB batteries.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSafety protection:\u003c\/strong\u003e Built-in reverse polarity, over-voltage, and over-temperature protection.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n  \u003cdiv class=\"obdm-bm550u-table-wrap\"\u003e\n    \u003ctable class=\"obdm-bm550u-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eFeature\u003c\/th\u003e\n          \u003cth\u003eRange \/ Compatibility\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eProduct Name\u003c\/td\u003e\n          \u003ctd\u003eOBDMonster BM550U Automotive Battery Tester with Built-In Printer\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSupported Voltage\u003c\/td\u003e\n          \u003ctd\u003e6V \/ 12V \/ 24V battery testing applications\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eCCA Range\u003c\/td\u003e\n          \u003ctd\u003e100–2000 CCA\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eBattery Types\u003c\/td\u003e\n          \u003ctd\u003eRegular flooded lead-acid, AGM flat plate, AGM spiral, GEL, EFB batteries\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eNot Recommended For\u003c\/td\u003e\n          \u003ctd\u003eLithium batteries\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMain Test Functions\u003c\/td\u003e\n          \u003ctd\u003eBattery test, cranking test, charging test, voltage waveform monitoring\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eDisplay\u003c\/td\u003e\n          \u003ctd\u003e1.8-inch HD color display\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003ePrinter Type\u003c\/td\u003e\n          \u003ctd\u003eBuilt-in thermal printer, no ink required\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003ePrinting Paper\u003c\/td\u003e\n          \u003ctd\u003e57mm x 30mm thermal paper\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eProtection Features\u003c\/td\u003e\n          \u003ctd\u003eReverse polarity protection, over-voltage protection, over-temperature protection\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eApproximate Weight\u003c\/td\u003e\n          \u003ctd\u003e0.95 lb portable handheld design\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eWhat’s in the Box?\u003c\/h2\u003e\n\n  \u003cul class=\"obdm-bm550u-list\"\u003e\n    \u003cli\u003e1 x \u003cstrong\u003eOBDMonster BM550U Battery Tester\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003e2 x Rolls of Thermal Printing Paper\u003c\/li\u003e\n    \u003cli\u003e1 x Heavy-Duty Alligator Clamp Set\u003c\/li\u003e\n    \u003cli\u003e1 x User Manual\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0819\/3641\/7003\/files\/13.jpg?v=1773805959\" alt=\"OBDMonster BM550U battery tester package contents with thermal paper clamps and user manual\"\u003e\n\n  \u003ch2\u003eWho Should Use the OBDMonster BM550U?\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The BM550U is designed for users who need reliable battery diagnostics and clear documentation. It is especially\n    useful for professional shops that want to show printed results to customers, as well as fleet managers who need\n    to keep records of battery condition over time.\n  \u003c\/p\u003e\n\n  \u003cul class=\"obdm-bm550u-list\"\u003e\n    \u003cli\u003eProfessional auto repair shops\u003c\/li\u003e\n    \u003cli\u003eBattery service centers\u003c\/li\u003e\n    \u003cli\u003eMobile mechanics\u003c\/li\u003e\n    \u003cli\u003eFleet maintenance teams\u003c\/li\u003e\n    \u003cli\u003eUsed car inspection professionals\u003c\/li\u003e\n    \u003cli\u003eAutomotive parts stores\u003c\/li\u003e\n    \u003cli\u003eDIY users with multiple vehicles\u003c\/li\u003e\n    \u003cli\u003eMotorcycle, truck, SUV, and equipment owners\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv class=\"obdm-bm550u-note\"\u003e\n    \u003cstrong\u003eImportant Note:\u003c\/strong\u003e The BM550U is designed for common lead-acid battery types including flooded,\n    AGM, GEL, and EFB batteries. It is not recommended for lithium batteries. Always select the correct battery type\n    and rating standard before testing. Test results may vary depending on battery condition, temperature, charge level,\n    and connection quality.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"obdm-bm550u-faq\"\u003e\n    \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDoes the BM550U print battery test reports?\u003c\/summary\u003e\n      \u003cp\u003e\n        Yes. The OBDMonster BM550U has a built-in thermal printer that can print battery test results instantly.\n        No ink is required.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat battery voltages does the BM550U support?\u003c\/summary\u003e\n      \u003cp\u003e\n        The BM550U supports 6V, 12V, and 24V battery testing applications, making it suitable for a wide range of vehicles\n        and equipment.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan it test AGM and GEL batteries?\u003c\/summary\u003e\n      \u003cp\u003e\n        Yes. The BM550U supports multiple common lead-acid battery types, including regular flooded, AGM flat plate,\n        AGM spiral, GEL, and EFB batteries.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan it test the alternator and starter system?\u003c\/summary\u003e\n      \u003cp\u003e\n        Yes. The BM550U supports cranking test and charging test functions to help evaluate starting performance and\n        alternator charging condition.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs the BM550U suitable for professional repair shops?\u003c\/summary\u003e\n      \u003cp\u003e\n        Yes. The built-in printer, battery health report, CCA testing, and 6V \/ 12V \/ 24V support make it very practical\n        for professional repair shops, battery service centers, and fleet maintenance teams.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"obdm-bm550u-cta\"\u003e\n    \u003ch2\u003eOBDMonster BM550U: Test, Diagnose, and Print with Confidence\u003c\/h2\u003e\n    \u003cp\u003e\n      The OBDMonster BM550U battery tester combines professional battery analysis, 6V \/ 12V \/ 24V support,\n      CCA testing, cranking and charging system diagnostics, real-time voltage waveform monitoring, and an integrated\n      thermal printer. It is a practical battery diagnostic tool for repair shops, technicians, fleet service teams,\n      and serious automotive users.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e","brand":"OBDMonster","offers":[{"title":"Default Title","offer_id":47972096966891,"sku":"CC0417","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/3641\/7003\/files\/1_30c994da-2441-46c5-92f5-91718b34cfd8.jpg?v=1773803185","url":"https:\/\/obd.monster\/products\/obdmonster-bm550u-battery-tester-with-printer","provider":"OBDMonster Online Store","version":"1.0","type":"link"}