{"product_id":"orion-tr-smart-24-48-dc-dc-charger","title":"Victron Orion-Tr Smart 24\/48-8.5A 400W DC-DC Charger | ORI244840120","description":"\u003cp\u003eThe Victron Orion-Tr Smart 24\/48-8.5A is a galvanically isolated DC-DC charger that steps a 24V supply up to 48V, delivering up to 8.5A (400W). It suits dual-battery and multi-voltage systems where electrical isolation between circuits is required.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGalvanic isolation\u003c\/strong\u003e, transformer-based isolation between input and output, avoiding ground loop issues in dual-bus systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth control\u003c\/strong\u003e, built-in Bluetooth for configuration, monitoring and firmware updates via VictronConnect.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable input thresholds\u003c\/strong\u003e, input voltage lockout points can be set to protect the source battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdaptive charging\u003c\/strong\u003e, supports lithium (LiFePO4), AGM, gel and flooded battery chemistries on the output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine detection\u003c\/strong\u003e, stops the charger drawing down the starter battery when the alternator is off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400W continuous output\u003c\/strong\u003e, 8.5A at 48V, in a compact wall-mountable enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct overview\u003c\/h2\u003e\u003cp\u003eKeeping the input and output circuits electrically separate matters in vehicles, vessels and off-grid systems that share a chassis ground. Without isolation, a direct DC-DC converter can open unwanted current paths that lead to corrosion, interference or safety issues. The isolation transformer in this unit removes that risk.\u003c\/p\u003e\u003cp\u003eConfiguration runs through the VictronConnect app over Bluetooth, with no extra interface hardware or dongles needed. Installers can set the input lockout voltage, choose the charge profile for the output battery chemistry and watch current, voltage and charge state in real time.\u003c\/p\u003e\u003cp\u003eAt 400W continuous, it fits 24V-to-48V step-up jobs: electric vehicles, marine dual-bank systems, and off-grid setups feeding a 48V load or battery from a 24V source. The 8.5A output is fixed by the converter design, so check it against the charge acceptance rate of the target battery bank.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCharging a 48V service battery from a 24V alternator or starter bank in commercial vehicles.\u003c\/li\u003e\n\u003cli\u003eMarine dual-bank systems needing isolation to prevent stray current corrosion.\u003c\/li\u003e\n\u003cli\u003eOff-grid installations stepping a 24V source up to a 48V battery or load bus.\u003c\/li\u003e\n\u003cli\u003eElectric vehicle auxiliary systems needing isolated voltage conversion.\u003c\/li\u003e\n\u003cli\u003eTelecom and industrial DC systems with mixed 24V and 48V rails.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eOrion-Tr Smart 24\/48-8.5A Isolated DC-DC Charger (ORI244840120)\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eInstallation notes\u003c\/h2\u003e\u003cp\u003eFit this with a qualified electrician or system integrator familiar with DC power systems. Wiring must be rated for the continuous current draw, and the source battery bank must sustain the load without dropping below the configured lockout voltage. Marine installs should follow NMEA and flag-state wiring standards. Set battery chemistry and voltage thresholds in VictronConnect before commissioning.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":52095398740256,"sku":"ORI244840120","price":185.21,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1010\/8148\/1504\/files\/ledandsolar-ori244840120-1.webp?v=1785748887","url":"https:\/\/www.ledandsolar.co.uk\/products\/orion-tr-smart-24-48-dc-dc-charger","provider":"LED \u0026 Solar","version":"1.0","type":"link"}