{"product_id":"tbb-power-bm-500-500a-12v-24v-48v-battery-shunt-monitor","title":"TBB Power BM-500 500A 12V\/24V\/48V Battery Shunt Monitor","description":"\u003cdiv style=\"font-size: 18px; line-height: 1.6; color: #222;\"\u003e\n\u003ch1 style=\"font-size: 32px; line-height: 1.25; text-align: center;\"\u003e\u003cstrong\u003eTBB Power BM-500 500A 12V \/ 24V \/ 48V Battery Shunt Monitor\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures battery current, voltage and state of charge for clearer control of solar, inverter and DC power systems.\u003c\/li\u003e\n\u003cli\u003eRated for charge and discharge currents up to 500A, with support for 12V, 24V and 48V battery banks.\u003c\/li\u003e\n\u003cli\u003eConnects with compatible TBB monitoring displays through CAN or RS485 communication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"font-size: 26px;\"\u003eTBB Power BM-500 battery shunt \u003c\/h2\u003e\n\u003cp\u003eThe TBB Power BM-500 is a 500A battery shunt for monitoring battery current and voltage in low-voltage DC systems. When used with a compatible TBB monitor or display, it provides live information including charge and discharge current, battery state of charge, remaining capacity, time to go and temperature.\u003c\/p\u003e\n\u003cp\u003eThe BM-500 supports a wide 7–95V battery-voltage range, making it suitable for 12V, 24V and 48V systems. It can be configured for AGM, GEL, wet lead-acid, traction, lead-carbon and Lithium Iron Phosphate (LiFePO4) batteries.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 26px;\"\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e500A bidirectional monitoring: \u003c\/strong\u003eMeasures charge and discharge current up to ±500A. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate system data: \u003c\/strong\u003e±0.4% current accuracy and ±0.3% voltage accuracy. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-battery monitoring: \u003c\/strong\u003eMonitors the main auxiliary battery and the voltage of up to two starter batteries. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible integration: \u003c\/strong\u003eCAN and RS485 communication support for compatible TBB monitoring systems. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable dry contact: \u003c\/strong\u003eNormally-open, common and normally-closed terminals for external control or alarm functions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch2 style=\"font-size: 26px;\"\u003eWhere to use\u003c\/h2\u003e\n\u003cp\u003eUse the TBB BM-500 in off-grid solar systems, campervans, motorhomes, boats, mobile work vehicles and backup-power installations where battery-bank information is needed. It is suitable for systems using TBB displays or compatible monitoring equipment.\u003c\/p\u003e\n\u003cp\u003eInstall the shunt close to the battery, with the main battery negative connected to the B− terminal and all DC loads and charge sources connected to the S− system side. This ensures all relevant current passes through the shunt for accurate state-of-charge calculation.\u003c\/p\u003e\n\u003cp\u003eThis is an indoor-rated DC component. Installation and maintenance should be carried out by a trained technician or qualified electrician. Energian UK expert support is available for battery-monitor selection and system design.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 26px;\"\u003eTechnical specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 17px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003eBM500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eProduct type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003eBattery shunt monitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003eRS485, CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eNominal battery voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e7–95V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eSuitable nominal systems\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e12V, 24V and 48V DC battery systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eNominal current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e±500A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eAuxiliary battery voltage, +B1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e7–95V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eStarter-battery voltage, +V2 and +V3\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e1–95V DC; supports up to two starter batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eBattery capacity range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e10–10,000Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eSupported battery types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003eAGM, GEL, semi-traction, traction, lead-carbon and LFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eTemperature-sensor connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e1 connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eWorking temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e-20°C to +50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eStorage temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e-30°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eVoltage accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e±0.3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eCurrent accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e±0.4%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eDry-contact rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e2A at 30V DC or 0.5A at 125V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eDC terminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003eB− battery negative; S− DC loads and starter-battery negative; +B1 auxiliary-battery positive; +V2 and +V3 starter-battery positive inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eStatus LED\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003eGreen flashing: normal operation; red flashing: error; solid red: auxiliary-battery charge or discharge current exceeds 500A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eDimensions, W × H × D\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e105 × 105 × 63mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003e0.3kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eIngress protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003eIP20; indoor use only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 51.8218%;\"\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid rgb(221, 221, 221); width: 48.1342%;\"\u003eCE certified; Safety: EN 60335-1:2012 and EN 62233:2008; EMC: EN 61000-6-3:2012 and EN 50498 Automotive EMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"font-size: 26px;\"\u003eDocuments available for download\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(43, 0, 255);\"\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0579\/7927\/3414\/files\/TBB-BM500_user_manual.pdf?v=1786364976\" target=\"_blank\" style=\"color: rgb(43, 0, 255);\" rel=\"noopener\"\u003eTBB Power BM-500 Installation and User Manual\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"font-size: 26px;\"\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eAvailable for shipping to the UK, Ireland, Africa, the Caribbean and worldwide. If the shipping rate is not shown at checkout, contact us on \u003ca href=\"tel:+442080640335\"\u003e+44 2080 640335\u003c\/a\u003e or \u003ca href=\"mailto:info@energian.co.uk\"\u003einfo@energian.co.uk\u003c\/a\u003e for a quote.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 26px;\"\u003eUK expert support\u003c\/h2\u003e\n\u003cp\u003eUK expert support is available for battery monitoring, DC cable routing and TBB system integration. Contact us with any questions or support requests by phone, email or live chat, or visit our office for an in-person consultation.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"TBB Power","offers":[{"title":"Default Title","offer_id":57825268793726,"sku":"TBB-BM500","price":76.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0579\/7927\/3414\/files\/1_ea37ff3c-dfd6-4958-9aa0-1a2d3be0254c.png?v=1786365045","url":"https:\/\/www.energian.co.uk\/products\/tbb-power-bm-500-500a-12v-24v-48v-battery-shunt-monitor","provider":"Energian","version":"1.0","type":"link"}