The W20-E5 is a solar lithium battery for home use. Its intelligent Battery Management System (BMS) can monitor and optimize battery performance in real – time, extend its service life, and enable remote control via a mobile app, making it convenient for you to track your home’s energy situation. It is easy to install, and the wall – mounted design saves space. In case of an emergency, it can serve as a power bank to supply power to home appliances, adapting to various scenarios。
W20-E5 Home Energy Storage Battery
The W20-E5 is a solar lithium battery for home use. Its intelligent Battery Management System (BMS) can monitor and optimize battery performance in real – time, extend its service life, and enable remote control via a mobile app, making it convenient for you to track your home’s energy situation. It is easy to install, and the wall – mounted design saves space. In case of an emergency, it can serve as a power bank to supply power to home appliances, adapting to various scenarios。
TECHNICAL SPECIFICATIONS
MODEL
W20-E5
CAPACITY
NOMINAL CAPACITY
RATED CAPACITY
400Ah
NOMINAL ENERGY
RATED ENERGY CAPACITY
RACK RATED ENERGY CAPACITY
BATTERY CONFIGURATION CAPACITY
CELL TECHNOLOGY
~525×917×246 mm Lithium Iron Phosphate 8,000 cycles @ 70%DOD，25°C/0.5C
CELL SPECIFICATION
NOMINAL VOLTAGE
51.2V
OPERATING VOLTAGE
44.8~56.16V
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)
~525×917×246 mm Lithium Iron Phosphate 8,000 cycles @ 70%DOD，25°C/0.5C
WEIGHT
BATTERY IMPEDANCE
RESISTANCE
OPERATING TEMPERATURE
-20°C ~ 60°C
DISCHARGING TEMPERATURE
IP RATING
IP 20
CYCLE LIFE
~525×917×246 mm Lithium Iron Phosphate 8,000 cycles @ 70%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 Adaptability
Supports wall-mounted/floor-standing installation, optional mobile storage with wheels, and IP20 for all-weather use
Long Lifespan & High Safety
Uses A+ LFP cells, has built-in hot aerosol fire extinguisher, and 8,000 cycles (70% DOD, 25°C/0.5C)
Low Maintenance
Firmware update via BLE; check status and configure BMS remotely
Flexible & Expandable
Up to 20 units in parallel, max system capacity 409.6kWh
Intelligent Control
BMS optimizes performance in real time; remote control via app for home energy tracking
Emergency Practicality
Easy to install, space-saving; acts as emergency power for home appliances
COMPATIBLE INVERTER BRANDS
PRODUCT DETAILS
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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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