The VENERBASE ENB-P15S Expansion Slave Module is the critical building block for scalable home energy storage. Offering 1,536Wh of pure LiFePO4 capacity, this module connects seamlessly to the ENB-P15S Master Unit, allowing consumers and commercial users to incrementally expand their power reserves without the expense of purchasing multiple complete power stations. This modular approach is highly attractive to B2B distributors, as it drives repeat purchases and builds long-term customer lock-in.

Equipped with its own independent Battery Management System (BMS), the slave module ensures that cell balancing and thermal regulation remain optimal across the entire expanded array. The 4,000-cycle lifespan guarantees parity with the master unit, providing a cohesive, decade-long energy solution. Its stackable, space-efficient design makes it an ideal addition to garage workshops, RV battery banks, and residential utility rooms.


• The ENB-P15S slave module is a 1,536Wh LiFePO4 battery expansion unit engineered to pair with the ENB-P15S master unit—enabling scalable home and commercial backup systems up to 4.6kWh per master-slave pair.
• Pure battery expansion at 1,536Wh capacity using the same premium 51.2V LiFePO4 cell architecture as the master unit—guaranteed electrical compatibility and balanced charge-discharge performance across the entire stack.
• Slave-only design without inverter circuitry reduces unit cost by approximately 30% compared to the master unit—strong margin opportunity for distributors offering expansion modules as affordable capacity upgrades.
• Compact form factor (404 x 218 x 205mm) at just 14.3kg net weight—lighter and slimmer than the master unit for flexible positioning in home garages, utility closets, and commercial equipment racks.
• 4,000-cycle LiFePO4 battery chemistry with built-in cell monitoring—communicates with the master unit's central BMS for synchronized balancing, thermal management, and fault protection across both units.
• AC charging input included—each slave unit charges independently through its own AC connection, reducing total recharge time when both master and slave are plugged in simultaneously.
• Stacked industrial design matches the ENB-P15S master unit aesthetically—clean side-by-side or vertical configuration that maintains professional appearance in visible residential and commercial installations.
• Cost-effective disaster preparedness upgrade—homeowners and small businesses start with the 1,536Wh master unit and add slave modules as budget allows, building toward whole-home coverage over time.
• Compatible with the master unit's 1,200W MPPT solar charging—solar input distributes across both units during daylight hours, maximizing renewable energy harvest for off-grid and backup applications.