{"product_id":"srne-bs48500-500a-bluetooth-battery-monitor","title":"SRNE Smart Battery Monitor with Shunt – 12V–48V With Bluetooth","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSRNE BS48500 Smart Battery Monitor\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides accurate monitoring of battery voltage, current and state of charge (SOC) in campervans, motorhomes, caravans, boats and off-grid electrical systems. Featuring an integrated \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e500A shunt and Bluetooth connectivity\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, it allows users to monitor battery performance through a compatible mobile app.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike basic voltage-only battery monitors, the BS48500 measures current flowing into and out of the battery to calculate its remaining charge. This provides a more useful indication of available battery capacity, particularly in systems where solar panels, battery chargers and electrical appliances are operating simultaneously.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCompatible with \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12V, 24V, 36V and 48V battery systems\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the monitor supports lithium and lead-acid batteries. Built-in Bluetooth enables convenient wireless monitoring, while RS485 and CAN communication provide additional integration options for compatible electrical management systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e• Integrated 500A shunt for monitoring battery charging and discharging\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Built-in Bluetooth for wireless monitoring through a compatible mobile app\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Displays battery voltage, current and state of charge (SOC)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Compatible with 12V, 24V, 36V and 48V systems\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Suitable for lithium, flooded lead-acid, sealed lead-acid and gel batteries\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Adjustable battery capacity from 1Ah to 9999Ah\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• High-precision current and voltage measurement\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Stores up to 60 days of historical battery data\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• RS485 and CAN communication with RV-C protocol support\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Compact design for installation within an electrical compartment\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e• Manufacturer: SRNE\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Model: BS48500\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Product type: Smart battery monitor with integrated shunt\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Rated current: 500A\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• System voltage: 12V \/ 24V \/ 36V \/ 48V DC\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Supply voltage: 6.5–75V DC\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Battery capacity range: 1–9999Ah\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Supported battery types: Lead-acid, gel and lithium-ion\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Standby current consumption: ≤15mA\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Current resolution: 0.01A\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Voltage resolution: 0.01V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• State of charge resolution: 0.1%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Current measurement accuracy: ±0.4%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Voltage measurement accuracy: ±0.3%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Time measurement accuracy: ±1 minute\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Bluetooth: Built-in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• RS485 communication: 1 port, 9600bps default\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• CAN communication: RV-C protocol\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Historical data storage: 60 days\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Operating temperature: -35°C to +65°C\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Protection rating: IP21\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Cooling: Natural convection\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Dimensions (unboxed): 120 × 48.3 × 45.9mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Net weight (unboxed): 350g\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eInstallation Information\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe BS48500 is designed for installation in the battery negative circuit, allowing it to measure charging and discharging current. Correct installation is essential to ensure that all relevant battery current passes through the monitor.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe unit is rated IP21 and must be installed in a dry, protected indoor location. It is not suitable for exposed external mounting.\u003c\/span\u003e\u003c\/p\u003e","brand":"SRNE","offers":[{"title":"Default Title","offer_id":54347138761032,"sku":"S-1-SR-BS48500-1","price":64.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0816\/9691\/5784\/files\/Untitled-20October2026at11.49.09-8.png?v=1792503446","url":"https:\/\/rebel-leisure.co.uk\/products\/srne-bs48500-500a-bluetooth-battery-monitor","provider":"Rebel Leisure Direct Ltd","version":"1.0","type":"link"}