W8-5C （Wall-Mounted Sodium-ion Home Battery）

The W8-5C is a next-generation wall-mounted home energy storage battery powered by advanced sodium-ion (Na-ion) technology. With 7.68kWh of usable energy and a long cycle life of over 8000 cycles, this system provides a safe, cost-effective, and maintenance-friendly solution for modern solar-powered homes.

Designed for seamless compatibility with mainstream hybrid and off-grid inverters, the W8-5C is built with BLE remote monitoring, aerosol fire suppression, and supports up to 20 units in parallel, scaling up to a massive 153.6kWh for larger energy demands.

Lithium Valley W8-5C （Wall-Mounted Sodium-ion Home Battery）, Residential Energy Storage System product image

TECHNICAL SPECIFICATIONS

MODEL

W8-5C

CAPACITY

NOMINAL CAPACITY

RATED CAPACITY

160Ah

NOMINAL ENERGY

7680Wh

RATED ENERGY CAPACITY

RACK RATED ENERGY CAPACITY

BATTERY CONFIGURATION CAPACITY

CELL TECHNOLOGY

Na-ion Battery

CELL SPECIFICATION

NOMINAL VOLTAGE

48V

OPERATING VOLTAGE

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)

WEIGHT

BATTERY IMPEDANCE

RESISTANCE

OPERATING TEMPERATURE

DISCHARGING TEMPERATURE

IP RATING

IP 65

CYCLE LIFE

8,000 cycles @ 80%DOD，25°C/0.5C

COMMUNICATION

CERTIFICATION

UN38.3, MSDS, Marine Report, UL1973

STANDARDS

CHARGING & INVERTING INTEGRATED MACHINE

MPPT

DCDC

LITHIUM BATTERY

12V MULTI-FUNCTION MODULE

CONTROL PANEL

WATER LEVEL SENSOR

APP

FEATURES

Sodium-ion Battery for Longer Life

Cutting-edge Na-ion technology offers up to 8000 cycles @ 80% DOD, delivering years of safe, stable performance

Built-in Fire Suppression for Safety

Equipped with an aerosol fire extinguishing device, enhancing safety for residential indoor environments

BLE App Control & Firmware Upgrade

Built-in Bluetooth (BLE) allows battery configuration, monitoring, and firmware upgrades via mobile app

Highly Scalable – Up to 153.6kWh

Support up to 20 battery units in parallel for large households, small commercial buildings, or EV charging stations

Wall-Mounted or Floor-Standing

Flexible installation options for compact spaces—indoors or under outdoor eaves

Multiple Certifications

Certified to UN38.3, MSDS, Marine Transport, and UL1973, ensuring safety and global compliance

COMPATIBLE INVERTER BRANDS

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FREQUENTLY ASKED QUESTIONS

How safe are lithium batteries for energy storage?

Lithium Valley products use LiFePO4 cells and a multilayer battery management system. Always follow the product datasheet, local electrical regulations, and approved installation practices.

What maintenance is required?

Routine maintenance is limited to keeping the installation area clean, checking connections, reviewing system alerts, and following the inspection schedule in the product manual.

Can the storage capacity be expanded later?

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.

Which inverter brands are compatible?

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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