{"product_id":"obdmonster-bm280-battery-monitor","title":"OBDMonster BM280 Battery Monitor | 12V–72V Voltage \u0026 Capacity Meter","description":"\u003csection class=\"obdm-bm280-product\"\u003e\n  \u003cstyle\u003e\n    .obdm-bm280-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-bm280-product * {\n      box-sizing: border-box;\n    }\n\n    .obdm-bm280-product img {\n      width: 100%;\n      height: auto;\n      display: block;\n      border-radius: 16px;\n      margin: 28px 0 34px;\n      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);\n    }\n\n    .obdm-bm280-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      overflow: 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Monitor\u003c\/span\u003e\n\u003c\/h1\u003e\n    \u003cp\u003e\n      A compact digital battery monitor designed for real-time voltage display, battery capacity percentage monitoring,\n      12V–72V battery system setup, lead-acid and lithium battery applications, and easy installation in vehicles,\n      golf carts, RVs, boats, trailers, and power equipment.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cp class=\"obdm-bm280-intro\"\u003e\n    The \u003cstrong\u003eOBDMonster BM280 Battery Monitor\u003c\/strong\u003e is built for users who need a simple, clear, and reliable way\n    to monitor battery voltage and remaining battery capacity. Whether you are maintaining a golf cart, RV, boat,\n    motorcycle, trailer, utility vehicle, lawn equipment, or backup power system, the BM280 helps you understand\n    battery status at a glance.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Instead of guessing how much power is left, the BM280 provides a digital readout for both \u003cstrong\u003ereal-time voltage\u003c\/strong\u003e\n    and \u003cstrong\u003ebattery capacity percentage\u003c\/strong\u003e. This helps users avoid unexpected low-battery situations, improve\n    charging habits, and monitor battery condition during daily use.\n  \u003c\/p\u003e\n\n  \u003cdiv class=\"obdm-bm280-highlight\"\u003e\n    \u003cp\u003e\n      \u003cstrong\u003eCore Advantage:\u003c\/strong\u003e The BM280 supports selectable voltage settings from \u003cstrong\u003e12V to 72V\u003c\/strong\u003e,\n      quick switching between voltage and percentage display modes, green\/red indicator lights for easier identification,\n      and flexible installation options including direct panel installation or key-switch connection.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eDigital Battery Monitor for Voltage and Capacity Display\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The OBDMonster BM280 is designed to give users a quick and visible reference of battery condition. The screen can\n    display battery voltage or remaining battery capacity percentage, helping users understand whether the battery is\n    fully charged, partially discharged, or needs attention.\n  \u003c\/p\u003e\n\n  \u003cdiv class=\"obdm-bm280-grid\"\u003e\n    \u003cdiv class=\"obdm-bm280-card\"\u003e\n      \u003ch3\u003eReal-Time Voltage Display\u003c\/h3\u003e\n      \u003cp\u003e\n        View battery voltage directly on the display to monitor charging status and system condition.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm280-card\"\u003e\n      \u003ch3\u003eCapacity Percentage Display\u003c\/h3\u003e\n      \u003cp\u003e\n        Switch to battery capacity percentage mode to check remaining power more intuitively.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm280-card\"\u003e\n      \u003ch3\u003e12V–72V Voltage Setup\u003c\/h3\u003e\n      \u003cp\u003e\n        Select the correct nominal battery voltage before use for more accurate and reliable readings.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eSelectable Voltage Settings from 12V to 72V\u003c\/h2\u003e\n\n  \u003cp\u003e\n    One of the most important features of the BM280 is its multi-voltage support. Before testing, users can set the\n    correct nominal battery voltage according to the battery system being monitored. This helps the monitor provide\n    more accurate voltage and capacity readings across different applications.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    The setup is simple: long-press the function key for 3 seconds to enter setting mode, press repeatedly to select\n    the correct voltage from 12V to 72V, then long-press again for 3 seconds to save the setting and complete setup.\n  \u003c\/p\u003e\n\n  \u003cimg src=\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/04a191cf-daed-4dff-ac87-03d816c38cdb.__CR0,0,1464,600_PT0_SX1464_V1___.jpg\" alt=\"OBDMonster BM280 battery monitor voltage setting from 12V to 72V with long press function key setup\"\u003e\n\n  \u003cdiv class=\"obdm-bm280-feature-row\"\u003e\n    \u003cdiv class=\"obdm-bm280-feature-box\"\u003e\n      \u003ch3\u003e12V Battery Systems\u003c\/h3\u003e\n      \u003cp\u003e\n        Suitable for many cars, motorcycles, boats, trailers, lawn mowers, powersports vehicles, and small equipment.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm280-feature-box\"\u003e\n      \u003ch3\u003e24V Battery Systems\u003c\/h3\u003e\n      \u003cp\u003e\n        Useful for selected trucks, equipment, marine systems, RV setups, and commercial electrical applications.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm280-feature-box\"\u003e\n      \u003ch3\u003e36V \/ 48V Systems\u003c\/h3\u003e\n      \u003cp\u003e\n        Commonly used in golf carts, electric carts, mobility equipment, and utility vehicles.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm280-feature-box\"\u003e\n      \u003ch3\u003e60V \/ 72V Systems\u003c\/h3\u003e\n      \u003cp\u003e\n        Designed for higher-voltage battery pack applications where battery status monitoring is required.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eSwitch Between Voltage and Percentage Display Modes\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The BM280 supports two practical display modes. In normal operation, press the function key briefly to switch\n    between \u003cstrong\u003ereal-time voltage display\u003c\/strong\u003e and \u003cstrong\u003ebattery capacity percentage display\u003c\/strong\u003e.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    The display indicator makes the mode easier to identify. A \u003cstrong\u003egreen light\u003c\/strong\u003e indicates real-time voltage\n    mode, while a \u003cstrong\u003ered light\u003c\/strong\u003e indicates battery capacity percentage mode. This makes it easy to check\n    the battery status quickly without confusion.\n  \u003c\/p\u003e\n\n  \u003cimg src=\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/751de9b7-5465-4e55-b7e6-60e7e565ff73.__CR0,0,1464,600_PT0_SX1464_V1___.jpg\" alt=\"OBDMonster BM280 battery monitor switch between voltage display and capacity percentage display modes with green and red indicator lights\"\u003e\n\n  \u003ch2\u003eSupports Lead-Acid and Lithium Battery Applications\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The BM280 is designed for common \u003cstrong\u003elead-acid\u003c\/strong\u003e and \u003cstrong\u003elithium battery\u003c\/strong\u003e applications\n    when properly configured for the correct voltage range. This makes it practical for users who manage different\n    types of battery systems across golf carts, RVs, boats, motorcycles, trailers, electric carts, and equipment.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    With correct setup, the BM280 provides a useful reference for battery voltage and remaining capacity so users can\n    better manage charging, power usage, and preventive maintenance.\n  \u003c\/p\u003e\n\n  \u003cdiv class=\"obdm-bm280-dark-box\"\u003e\n    \u003ch2\u003eIdeal for Golf Carts, RVs, Boats, Trailers, and Equipment\u003c\/h2\u003e\n    \u003cp\u003e\n      The OBDMonster BM280 is especially useful anywhere battery status matters. It helps users avoid running batteries\n      too low and supports better charging habits for daily operation.\n    \u003c\/p\u003e\n\n    \u003cul class=\"obdm-bm280-list\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003eGolf carts:\u003c\/strong\u003e Monitor battery pack voltage and capacity during daily use.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eRVs:\u003c\/strong\u003e Track auxiliary or house battery status during travel and camping.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eBoats:\u003c\/strong\u003e Monitor marine battery condition for onboard power systems.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eMotorcycles and powersports:\u003c\/strong\u003e Check battery voltage and remaining power more conveniently.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eTrailers and utility vehicles:\u003c\/strong\u003e Monitor battery status for towing, work, and equipment applications.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eLawn and outdoor equipment:\u003c\/strong\u003e Track battery condition for electric or battery-supported equipment.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eEasy Installation for Clean Panel Mounting\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The BM280 is designed for practical installation in dashboards, panels, control boxes, golf carts, RV interiors,\n    boat consoles, battery compartments, trailers, and equipment panels. It can be installed internally by placing\n    the battery monitor into an existing card slot or by cutting a panel opening.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    The reference opening size shown is approximately \u003cstrong\u003e1.46 inch x 1 inch\u003c\/strong\u003e. Users may also connect the\n    monitor through a key switch circuit so the display turns on only when the system is active. This type of installation\n    can help reduce unnecessary power draw and supports a cleaner setup.\n  \u003c\/p\u003e\n\n  \u003cimg src=\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/3875a992-14fa-4024-b674-dc089159ee81.__CR0,0,1464,600_PT0_SX1464_V1___.jpg\" alt=\"OBDMonster BM280 battery monitor easy installation direct connection and key switch connection for panel mounting\"\u003e\n\n  \u003ch2\u003eWhy Battery Monitoring Matters\u003c\/h2\u003e\n\n  \u003cp\u003e\n    Battery failure does not always happen suddenly. In many cases, users first experience weak starting, reduced run time,\n    slow accessory operation, low voltage warnings, unstable electronics, or incomplete charging. A battery monitor helps\n    users see battery condition before it becomes a bigger problem.\n  \u003c\/p\u003e\n\n  \u003cul class=\"obdm-bm280-list\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAvoid unexpected low battery:\u003c\/strong\u003e Check capacity before operation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eImprove charging habits:\u003c\/strong\u003e Know when the battery needs charging.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProtect battery life:\u003c\/strong\u003e Avoid excessive discharge when possible.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMonitor battery pack condition:\u003c\/strong\u003e Useful for multi-battery systems such as golf carts and RVs.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSupport preventive maintenance:\u003c\/strong\u003e Identify abnormal voltage behavior earlier.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eImprove user confidence:\u003c\/strong\u003e See voltage and capacity directly instead of guessing.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eKey Features\u003c\/h2\u003e\n\n  \u003cdiv class=\"obdm-bm280-feature-row\"\u003e\n    \u003cdiv class=\"obdm-bm280-feature-box\"\u003e\n      \u003ch3\u003eVoltage and Capacity Display\u003c\/h3\u003e\n      \u003cp\u003e\n        Shows real-time battery voltage and remaining capacity percentage for easier power management.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm280-feature-box\"\u003e\n      \u003ch3\u003e12V–72V Voltage Selection\u003c\/h3\u003e\n      \u003cp\u003e\n        Supports selectable nominal voltage settings from 12V to 72V for different battery systems.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm280-feature-box\"\u003e\n      \u003ch3\u003eGreen \/ Red Indicator Modes\u003c\/h3\u003e\n      \u003cp\u003e\n        Green light indicates voltage display mode; red light indicates battery capacity percentage mode.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm280-feature-box\"\u003e\n      \u003ch3\u003eLead-Acid and Lithium Support\u003c\/h3\u003e\n      \u003cp\u003e\n        Suitable for common lead-acid and lithium battery applications when properly configured.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm280-feature-box\"\u003e\n      \u003ch3\u003ePanel Mount Installation\u003c\/h3\u003e\n      \u003cp\u003e\n        Compact design for dashboards, control panels, golf carts, RVs, boats, trailers, and equipment.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"obdm-bm280-feature-box\"\u003e\n      \u003ch3\u003eKey Switch Connection Option\u003c\/h3\u003e\n      \u003cp\u003e\n        Can be wired through a key switch for controlled display activation and cleaner installation.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n  \u003cdiv class=\"obdm-bm280-table-wrap\"\u003e\n    \u003ctable class=\"obdm-bm280-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eFeature\u003c\/th\u003e\n          \u003cth\u003eDetails\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 BM280 Battery Monitor\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eTool Type\u003c\/td\u003e\n          \u003ctd\u003eDigital battery monitor, battery capacity meter, voltage display gauge\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eVoltage Setting Range\u003c\/td\u003e\n          \u003ctd\u003e12V to 72V selectable nominal battery voltage\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eCommon System Support\u003c\/td\u003e\n          \u003ctd\u003e12V \/ 24V \/ 36V \/ 48V \/ 60V \/ 72V battery systems\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eBattery Compatibility\u003c\/td\u003e\n          \u003ctd\u003eCommon lead-acid and lithium battery applications\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eDisplay Modes\u003c\/td\u003e\n          \u003ctd\u003eReal-time voltage display and battery capacity percentage display\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eIndicator Lights\u003c\/td\u003e\n          \u003ctd\u003eGreen light for voltage mode; red light for capacity percentage mode\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSetup Method\u003c\/td\u003e\n          \u003ctd\u003eLong-press function key for 3 seconds to enter or save voltage setting; short press to select or switch display modes\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eInstallation Method\u003c\/td\u003e\n          \u003ctd\u003eDirect panel installation or key switch connection\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eReference Opening Size\u003c\/td\u003e\n          \u003ctd\u003eApproximately 1.46 inch x 1 inch\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eApplications\u003c\/td\u003e\n          \u003ctd\u003eGolf carts, RVs, boats, motorcycles, trailers, electric carts, utility vehicles, lawn equipment, and battery systems\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eWho Should Use the OBDMonster BM280?\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The BM280 is designed for users who want simple, visible, and practical battery monitoring. It is especially useful\n    for equipment that depends on battery runtime or battery pack condition.\n  \u003c\/p\u003e\n\n  \u003cul class=\"obdm-bm280-list\"\u003e\n    \u003cli\u003eGolf cart owners and service technicians\u003c\/li\u003e\n    \u003cli\u003eRV owners and campers\u003c\/li\u003e\n    \u003cli\u003eBoat and marine battery users\u003c\/li\u003e\n    \u003cli\u003eMotorcycle and powersports users\u003c\/li\u003e\n    \u003cli\u003eTrailer and utility vehicle users\u003c\/li\u003e\n    \u003cli\u003eFleet maintenance teams\u003c\/li\u003e\n    \u003cli\u003eElectric cart and mobility equipment users\u003c\/li\u003e\n    \u003cli\u003eDIY installers and automotive electrical users\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv class=\"obdm-bm280-note\"\u003e\n    \u003cstrong\u003eImportant Note:\u003c\/strong\u003e Always confirm the battery type, system voltage, and wiring requirements before installation.\n    The BM280 is a battery monitor designed to display voltage and capacity reference information. It is not a battery load tester\n    and does not replace professional battery health testing when advanced diagnosis is required. For best results, set the correct\n    nominal battery voltage before use.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"obdm-bm280-faq\"\u003e\n    \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the OBDMonster BM280 used for?\u003c\/summary\u003e\n      \u003cp\u003e\n        The BM280 is used to monitor battery voltage and remaining battery capacity. It helps users check battery status\n        in vehicles, golf carts, RVs, boats, trailers, and equipment.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat voltage systems does the BM280 support?\u003c\/summary\u003e\n      \u003cp\u003e\n        The BM280 supports selectable nominal voltage settings from 12V to 72V, including common 12V, 24V, 36V, 48V,\n        60V, and 72V battery system applications.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I set the battery voltage?\u003c\/summary\u003e\n      \u003cp\u003e\n        Long-press the function key for 3 seconds to enter setting mode, press repeatedly to select the required voltage,\n        then long-press again for 3 seconds to save the setting.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I switch between voltage and percentage display?\u003c\/summary\u003e\n      \u003cp\u003e\n        During normal operation, briefly press the function key to switch between real-time voltage display and battery\n        capacity percentage display.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat do the green and red lights mean?\u003c\/summary\u003e\n      \u003cp\u003e\n        The green light indicates real-time voltage display mode. The red light indicates battery capacity percentage mode.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan it work with lead-acid and lithium batteries?\u003c\/summary\u003e\n      \u003cp\u003e\n        Yes. The BM280 is designed for common lead-acid and lithium battery applications when properly configured for the\n        correct battery type and voltage range.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this a battery tester or a battery monitor?\u003c\/summary\u003e\n      \u003cp\u003e\n        The BM280 is a battery monitor. It displays voltage and capacity reference information. For load testing, cranking\n        testing, or detailed battery health analysis, use a dedicated battery tester.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"obdm-bm280-cta\"\u003e\n    \u003ch2\u003eOBDMonster BM280: Monitor Battery Power with Confidence\u003c\/h2\u003e\n    \u003cp\u003e\n      The OBDMonster BM280 Battery Monitor provides real-time voltage display, battery capacity percentage monitoring,\n      selectable 12V–72V voltage setup, lead-acid and lithium battery compatibility, green\/red display mode indication,\n      and practical panel-mount installation. It is a compact and useful battery meter for golf carts, RVs, boats,\n      trailers, motorcycles, utility vehicles, and everyday battery-powered equipment.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e","brand":"OBDMonster","offers":[{"title":"Default Title","offer_id":48183100145899,"sku":null,"price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/3641\/7003\/files\/1_a630a646-4a79-43d4-8116-557c1b016b7e.jpg?v=1777873294","url":"https:\/\/obd.monster\/products\/obdmonster-bm280-battery-monitor","provider":"OBDMonster Online Store","version":"1.0","type":"link"}