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.
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.
TECHNICAL SPECIFICATIONS
MODEL
W15-E5
CAPACITY
NOMINAL CAPACITY
RATED CAPACITY
280Ah
NOMINAL ENERGY
RATED ENERGY CAPACITY
RACK RATED ENERGY CAPACITY
BATTERY CONFIGURATION CAPACITY
CELL TECHNOLOGY
~771×441×243 mm Lithium Iron Phosphate 8,000 cycles @ 80%DOD，25°C/0.5C
CELL SPECIFICATION
NOMINAL VOLTAGE
51.2V
OPERATING VOLTAGE
44.8~57.6V
VOLTAGE RANGE
MPPT INPUT VOLTAGE
RATED POWER
RATED OUTPUT POWER
RATED AC POWER
MAX. AC OUTPUT ACTIVE POWER
MAX. ALLOWABLE INPUT POWER
OUTPUT POWER FACTOR
EFFICIENCY
MAX. EFFICIENCY
MAX. ROUND-TRIP EFFICIENCY
THDi
MAX. CHARGE/DISCHARGE CURRENT
INSTANTANEOUS DISCHARGE CURRENT
DEPTH OF DISCHARGE (DoD)
DIMENSIONS (W × D × H)
~771×441×243 mm Lithium Iron Phosphate 8,000 cycles @ 80%DOD，25°C/0.5C
WEIGHT
BATTERY IMPEDANCE
RESISTANCE
OPERATING TEMPERATURE
-20°C ~ 60°C
DISCHARGING TEMPERATURE
IP RATING
IP 20
CYCLE LIFE
~771×441×243 mm Lithium Iron Phosphate 8,000 cycles @ 80%DOD，25°C/0.5C
COMMUNICATION
RS232 / CAN / RS485
CERTIFICATION
STANDARDS
CHARGING & INVERTING INTEGRATED MACHINE
MPPT
DCDC
LITHIUM BATTERY
12V MULTI-FUNCTION MODULE
CONTROL PANEL
WATER LEVEL SENSOR
APP
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 INVERTER BRANDS
PRODUCT DETAILS
RELATED PRODUCTS
Related products
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W20-E5 Home Energy Storage Battery
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Residential Energy Storage System
W30-E5 Home Energy Storage Battery
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Residential Energy Storage System
W15-5A (Residential LFP Battery Series)
-
Residential Energy Storage System
W16-5A
FREQUENTLY ASKED QUESTIONS
Lithium Valley products use LiFePO4 cells and a multilayer battery management system. Always follow the product datasheet, local electrical regulations, and approved installation practices.
Routine maintenance is limited to keeping the installation area clean, checking connections, reviewing system alerts, and following the inspection schedule in the product manual.
Expansion capability depends on the specific model, inverter compatibility, firmware, and installation design. Confirm the supported parallel quantity in the model datasheet before adding modules.
Compatibility differs by model and communication protocol. Use the compatible-brand section and the latest datasheet as the primary reference, or contact Lithium Valley for confirmation.
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