Victron 20A 24V DC to 12V DC battery-to-battery charger for lead acid or lithium batteries with Bluetooth and galvanic isolation Charges 12V batteries from 24V source using alternator, solar or DC input – suits dual voltage systems in vehicles and sites. Bluetooth app for monitoring, settings and adaptive charging to extend battery life. Galvanic isolation prevents current leakage in marine or mixed ground setups. The Victron Orion-Tr Smart 24/12-20 isolated DC-DC charger provides 240W to charge 12V lead-acid or lithium batteries from a 24V source. Intelligent multi-stage charging includes bulk, absorption and float stages with engine detection for vehicles. Galvanic isolation up to 200V DC separates input, output and case. Key Features Remote on/off and parallel capable for system expansion. Short circuit proof, high temperature protected with IP43 rating. Low standby draw under 1mA; suits smart alternators. LED indicators for charge stage and Bluetooth status. Applications Ideal for HGVs with 24V systems charging 12V auxiliaries, boats, off-grid sites and industrial dual-battery setups. Suggest installation via trusted partners for non-plug-and-play use; our UK experts can guide. Technical Specifications Orion-Tr Smart isolated 24/12-20 (240W) Input voltage range: 16-35 V Under voltage shut down: 14 V Under voltage restart: 15 V Nominal output voltage: 12.2 V Output voltage adjust range: 10-15 V Output voltage tolerance: +/- 0.2 V Output noise: 2 mV rms Cont. output current at nominal output voltage and 40°C: 20 A Maximum output current (10 s): 25 A Short circuit output current: 50 A Cont. output power at 25°C: 300 W Cont. output power at 40°C: 240 W Efficiency: 88% No load input current: < 100 mA Standby current: Less than 1 mA Galvanic isolation: 200 V dc between input, output and case Operating temperature range: -20 to +55 °C (derate 3% per °C above 40 °C) Humidity: Max. 95% non-condensing DC connection: Screw terminals 16 mm² (AWG6) Weight: 1.3 kg Dimensions h x w x d: 130 x 186 x 70 mm Standards: Safety EN 60950; Emission EN 61000-6-3, EN 55014-1; Immunity EN 61000-6-2, EN 61000-6-1, EN 55014-2; Automotive Directive ECE R10-5 Shipping Available to UK, Ireland, Africa, the Caribbean and worldwide. If shipping rate not shown at checkout, contact us on +44 2080640335 or [email protected] for a quote. UK Expert Support UK expert support available - contact us with any questions or support requests via phone, email or live chat, or visit our office for an in-person consultation. Documents available for download Datasheet User Manual
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