Victron Energy BCD 802 2-Battery Combiner / Splitter – 80 A (BCD000802000)

The Victron Energy BCD 802 is a robust 2-battery combiner/splitter designed to safely and intelligently connect two battery banks to a single charging source. Rated for 80 A, this device simplifies dual-bank charging in systems with multiple battery banks — like RV, marine, and off-grid solar installations — while protecting against overcharge and ensuring both batteries are topped up efficiently.

Whether you’re wiring house batteries and a starter battery or pairing auxiliary and service banks, the BCD 802 provides an easy way to share charge current without complex wiring or manual switching.

Key Benefits

Automatic Battery Combining
Connects two separate battery banks to a single charger or alternator, automatically combining them when charging and isolating them when not. This helps ensure both banks get proper charge while preventing unwanted current back-feed.

80 A Rated Capacity
Designed to handle up to 80 amps of combined charge current, making it a strong match for mid-sized RV, marine, and off-grid systems.

Simplified Charging Architecture
Eliminates the need for manual battery switches or more complex relay networks when charging multiple banks from a single source.

Protects Both Banks
Prevents one battery from draining into the other when not charging, preserving starting power and service capacity.

Compact & Easy to Install
Simple terminal layout and clear labeling make installation straightforward on battery trays, bus bars, or distribution panels.

Typical Use Cases

• RV Dual Bank Systems — Connects house and starting battery without manual switching.

• Marine Power Systems — Ensures both service and engine start banks are charged properly.

• Off-Grid Solar Systems — Combines auxiliary banks for efficient charge sharing.

• Backup & Mobile Power Builds — Integrates batteries with alternators or multi-source chargers.

Why We Recommend It

The BCD 802 is an ideal battery combiner for customers who need simple, reliable dual-bank charging without manual switches or complex control circuitry. Its generous 80 A rating matches well with mid-level charging sources like DC alternators, solar charge controllers, and inverter/chargers, making it a practical component in many mobile and off-grid power systems.