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The Victron BCD 802 80A battery combiner (for 2 batteries) – is a reliable diode combiner designed to supply power to critical nodes and equipment from two independent DC sources simultaneously. The device's design guarantees that in the event of failure of one of the batteries, the power supply will instantly continue from the second source, without any switching interruptions.
This device is specially developed for highly reliable systems, including: on-board electronic engine control units, communication and telecommunication stations, ship navigation systems, and uninterruptible emergency power networks.
Through the use of highly efficient Schottky diodes, the combiner demonstrates an extremely low voltage drop, which significantly reduces heat losses and ensures maximum efficiency in all conditions.
Important advantages of the Victron BCD 802 diode combiner
- Combining energy from 2 batteries for uninterrupted power supply to a single consumer
- Failsafe load operation, even during a breakdown on one of the sources
- Minimal voltage drops due to the use of Schottky diodes (about 0.3–0.45 V)
- Versatility – full compatibility with 12 V and 24 V circuits
- Modest dimensions and ease of installation
- Absolutely passive operation scheme without vulnerable electronic components
- Zero current consumption in standby mode
- Optimal solution for critically important equipment where power sags are unacceptable
Technical parameters of the device
- Product code: BCD000802000
- Permissible DC current: 80 A
- Number of connected sources (batteries): 2
- Operating network voltage: 12 V or 24 V
- Connection format: reliable screw terminals for an M6 bolt
- Voltage losses:
- about 0.3 V in low current mode
- about 0.45 V when reaching the nominal current
- Overall dimensions (in mm): 60 x 120 x 75
- Device weight: 0.8 kg
- Execution material: aluminum case with radiator fins for passive cooling
- Installation recommendations: installation is allowed strictly on non-combustible bases (important instruction from the manufacturer)
Spheres of practical application
- Crucial ICE control units – guarantee of uninterrupted power supply
- Telecommunication hubs – as a reliable backup channel
- Energy systems of expeditionary motorhomes and commercial special equipment
- Marine transport and critical navigation electronics
- Security and infrastructure complexes (alarms, access systems)
- Life-supporting medical equipment – stable current without the risk of failure of complex electronics
Features of applied technologies
- Galvanic combination of isolated batteries
- Problem-free operation with any battery standards – both classic lead (AGM, GEL) and lithium (LiFePO₄)
- Ideal for local assemblies and embedded systems
- Absence of microchips and processors – passive operation ensures 100% reliability
- Highest level of energy efficiency with modest dimensions and weight