Description
Eliminating external conduit runs across multi-tower installations.
EcoFlow Battery Stack Bridge is a precision structural alignment bracket and concealed wiring conduit bridge engineered to interlock adjacent EcoFlow PowerOcean battery columns and route high-voltage cables cleanly without external conduits.
Rigid Inter-Stack Structural Locking
Mechanically bridges adjacent PowerOcean battery columns to ensure perfect parallel alignment and seismic stability.
Concealed High-Voltage Cable Routing
Protects and conceals power and communication wiring passing between stacks, eliminating unsightly external conduit runs.
Corrosion-Resistant Powder-Coated Steel
Matches the exact metallic grey aesthetic and weatherproofing of the EcoFlow PowerOcean system enclosure.
Fast Tool-Free Snapping Assembly
Clips directly into pre-drilled chassis mounting slots, cutting multi-stack installation time.
More product details
Multi-tower battery installations often end up with unsightly external conduit runs between columns. The Battery Stack Bridge provides an enclosed internal raceway that routes heavy DC cables seamlessly between adjacent cabinets.
- Fully encloses high-voltage DC jumper cables and CAN communication leads between columns.
- Protects wiring against mechanical abrasion, pinch points, and accidental impact.
- Preserves clean, modern residential aesthetics in living spaces and garages.

EcoFlow OCEAN 2 (Accessories)
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Mechanical interlock for uniform vertical column spacing.
Placing multiple heavy battery columns side-by-side requires consistent mechanical spacing and structural rigidity against ground vibrations. Heavy-gauge stamped steel bracket locks adjacent battery columns at exact factory spacing. Enhances overall structural stability for multi-stack installations (up to 45.9 kWh / 500+ kg total weight). Powder-coated finish provides corrosion protection matching IP65 outdoor environmental ratings.
Fits three battery models
PowerOcean EF BD-5.1-S1, OCEAN 2 EF BD-5-S2, OCEAN 2 EF BD-8-S2. The two towers on one bridge must match.
Keeps the specified gap
PowerOcean: 95.4 to 105.4 mm between bases. OCEAN 2: 94.6 to 104.5 mm. The bracket is the spacer.
Adds seismic restraint where required
The bridge is mechanical bracing. Seismic zones still need a suitable extra restraint.
Technical data
Preserving furniture-grade aesthetics and mechanical stability across multi-tower battery installations.
Inter-module structural alignment bridge and concealed high-voltage wiring channel.
Serving as the mechanical and electrical conduit link between adjacent EcoFlow battery columns, the Battery Stack Bridge locks multi-column battery installations together. It cleanly routes internal high-voltage cables and communication lines while maintaining a sleek, furniture-grade cabinet appearance with zero exposed wiring.
- Rigid Bracing
- Structural Lock
- Cable Channel
- Concealed Conduit
- Steel Construction
- Powder-Coated
- Fast Assembly
- Clip-In Mount
Key Facts
- Compatible batteries
- EcoFlow PowerOcean LFP Battery (EF BD-5.1-S1)OCEAN 2 LFP Battery 5 kWh (EF BD-5-S2) · OCEAN 2 LFP Battery 8 kWh (EF BD-8-S2), bridged units must be identical models
- Base spacing
- OCEAN 2 bases: 94.6–104.5 mm between towersPowerOcean bases: 95.4–105.4 mm
- Recommended quantity
- Secure both sides of each battery unit in both towers, e.g. 12 brackets for two 6-module towersadd seismic restraint in seismic zones
Compatibility & installation
- Application
- Mechanical bracing between two adjacent battery towers
- Battery matching
- Both bridged towers must use the identical battery model
- Compatible battery 1
- OCEAN 2 LFP Battery 5 kWh (EF BD-5-S2)
- Compatible battery 2
- OCEAN 2 LFP Battery 8 kWh (EF BD-8-S2)
- Compatible battery 3
- PowerOcean LFP Battery (EF BD-5.1-S1)
- OCEAN 2 base spacing
- 94.6–104.5 mm
- PowerOcean base spacing
- 95.4–105.4 mm
- Bracket placement
- EcoFlow recommends securing both sides of every battery unit
- Two 6-module towers
- 12 bridge brackets
- Seismic zones
- Additional suitable seismic restraint required
Project fit
Where this model fits.
Scenarios that show which projects the EcoFlow Battery Stack Bridge belongs in, what to verify before quoting, and when another model is the better pick.
Multi-Tower PowerOcean Installations (2 or 3 Columns Side-by-Side)

Installing 2 or 3 PowerOcean battery columns (20.4 to 45.9 kWh total) side-by-side along a garage or utility room wall.
Bridges the columns mechanically and routes wiring cleanly between cabinets.
- Confirm this model against the adjacent rating in the same family
Documents
EcoFlow Battery Stack Bridge Installation GuideProduct questions
How many bridge brackets are needed for a 2-tower or 3-tower installation?
1 bridge for 2 towers; 2 bridges for 3 towers. Install one Battery Stack Bridge between each adjacent pair of columns (e.g. between Tower 1 and Tower 2, and between Tower 2 and Tower 3).