W15-E5 Home Energy Storage Battery

The W15-E5 is a comprehensive home wall-mounted solar lithium battery. It features built-in high-quality, high-capacity LiFePO4 batteries, ensuring a long system lifespan for the battery. The independently designed Battery Management System (BMS) has been verified to be compatible with inverters from different brands,supporting hybrid grid-tied and off-grid operation modes.

SMILE5 Series system is the bestseller of AlphaESS. It is available for DC-coupling, AC-coupling and hybrid-coupling connection and working with multiple battery options including 2.9kWh, 5.7kWh, 10.1kWh and 13.3kWh battery module. With VPP value stacked, it would be the best choice for householders.

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W15-E5 Home Energy Storage Battery

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W32-E5 Home Energy Storage Battery
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W20-E5 Home Energy Storage Battery
W20-E5 Home Energy Storage Battery

W15-E5 Home Energy Storage Battery

The W15-E5 is a comprehensive home wall-mounted solar lithium battery. It features built-in high-quality, high-capacity LiFePO4 batteries, ensuring a long system lifespan for the battery. The independently designed Battery Management System (BMS) has been verified to be compatible with inverters from different brands,supporting hybrid grid-tied and off-grid operation modes.

Model

W15-E5

Nominal Voltage

51.2V

Rated Capacity

280Ah

Operating Voltage

44.8~57.6V

Dimension(L x W x D)

Cell Technology

Cycle Life

~771×441×243 mm

Lithium Iron Phosphate 

8,000 cycles @ 80%DOD，25°C/0.5C

Operating Temperature

-20°C ~ 60°C

IP Rating

IP 20

Communication Interfaces

RS232 / CAN / RS485

Download File
Inquiry/Request a Quote

FEATURES

Multi-Scenario Application

Supports wall-mounted fixed storage; optional detachable wheels enable mobile storage.

Long Lifespan & High Safety

Uses A+ grade LiFePO₄ cells; certified by UN38.3, MSDS and Marine Report.

High Expandability

Up to 20 units in parallel; max parallel system capacity 286.72kWh.

All-Weather Usability

IP20 rating; suitable for indoor or outdoor eaves installation.

Low Maintenance & Convenient Management

Built-in BLE for firmware update, status check and BMS configuration.

High Energy Efficiency

99% charge-discharge efficiency (25°C/0.5C); max continuous current 200A.

Compatible List of inverters Brands

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    FREQUENTLY ASKED
    QUESTIONS

    Q1: How safe are lithium batteries for energy storage?

    A1: Our lithium batteries are designed with multiple safety features, including overcharge protection, thermal management, and advanced battery management systems (BMS). We prioritize safety by adhering to international standards and offering IP-rated enclosures for maximum reliability and protection.

    Q2: What maintenance is required for lithium battery energy storage systems?

    A2: Lithium batteries require minimal maintenance. Routine checks of the battery management system (BMS) and ensuring proper ventilation for the system are generally sufficient. Our products are designed for easy monitoring and remote management through smart apps for added convenience.

    Q3: Can I expand the capacity of my energy storage system in the future?

    A3: Yes, our lithium energy storage systems are modular and scalable, allowing you to expand the capacity by adding additional battery modules. This flexibility ensures you can meet increasing energy demands over time without replacing the entire system.

    Q4: Are lithium batteries environmentally friendly?

    A4: Yes, lithium batteries are a sustainable option for energy storage. They are highly efficient, have a long lifespan, and can be recycled at the end of their life. Additionally, they help reduce dependence on fossil fuels by enabling renewable energy storage.

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