Product overview
Reliable performance without the guesswork.
Review the product details, specifications and support information below before ordering.
- Residential solar backup systems
- Small offices and shops
- Hybrid solar installations
- Off-grid homes and properties
- Essential-load backup systems
- Areas with frequent power interruptions
- Modular solar-energy storage systems
- Selected commercial backup installations
When paired with a correctly sized inverter and solar array, the battery can support essential appliances such as:
- 💡 Household and office lighting
- 📺 Televisions
- 📡 Wi-Fi routers and networking equipment
- 💻 Computers and laptops
- 🌀 Fans
- 🧊 Energy-efficient refrigerators
- 📹 CCTV and security systems
- 🖨️ Selected office equipment
- 🏪 Shop and business equipment
- 📱 Phones and other small electronics
Actual backup time depends on the connected load, inverter efficiency, battery settings and usable depth of discharge.
The WeCo 5K3-XP Lithium Battery is a versatile energy-storage solution designed for residential solar systems, commercial backup installations and off-grid applications.
With a nominal energy capacity of approximately 5.3kWh, the battery is designed to operate in compatible low-voltage systems and supports WeCo’s dual-voltage architecture. Its modular design makes it suitable for both single-battery installations and larger expandable storage systems.
Built for dependable daily cycling, the WeCo 5K3-XP provides efficient energy storage for use during power outages, at night or whenever grid electricity is unavailable.
🔋 Key Features
- Approximately 5.3kWh energy-storage capacity
- 51.2V low-voltage battery system
- Dual-voltage battery architecture
- Lithium battery technology for efficient energy storage
- Integrated Battery Management System
- Suitable for compatible hybrid and off-grid inverters
- Modular and expandable system design
- High charging and discharging efficiency
- Compact floor-standing enclosure
- Durable protective casing
- Suitable for residential and commercial solar installations
- Low-maintenance operation
⚡ Dual-Voltage Design
The WeCo 5K3-XP is described as a dual-voltage battery, allowing it to be used within selected WeCo low-voltage and high-voltage system configurations.
The exact configuration depends on:
- Number of battery modules
- WeCo system accessories
- Inverter compatibility
- Approved wiring arrangement
- Battery communication settings
The battery should not be changed between low-voltage and high-voltage configurations without following the manufacturer’s approved installation procedure.
🧠 Integrated Battery Management System
The built-in Battery Management System helps monitor battery operation and protect against common electrical and operating risks, including:
- Overcharging
- Excessive discharge
- Overcurrent
- Short circuits
- High and low temperatures
- Cell-voltage imbalance
- Abnormal charging or discharging conditions
These protections help support safe operation, stable performance and longer battery life.
🔗 Expandable Energy Storage
The WeCo 5K3-XP has a modular design that allows compatible battery units to be combined when more storage capacity is required.
Example nominal capacities may include:
- 1 battery: Approximately 5.3kWh
- 2 batteries: Approximately 10.6kWh
- 4 batteries: Approximately 21.2kWh
- 8 batteries: Approximately 42.4kWh
The maximum number of supported batteries and the required connection method should be confirmed from the official WeCo installation manual.
✅ Benefits of Lithium Battery Storage
- Longer operating life than conventional lead-acid batteries
- Higher usable energy capacity
- Efficient charging and discharging
- Reduced maintenance requirements
- Stable performance during repeated cycling
- Compact installation
- Expandable storage capacity
- Lower long-term replacement costs
⚠️ Inverter Compatibility
Before installation, confirm that the inverter supports:
- WeCo 5K3-XP batteries
- The required low-voltage or high-voltage configuration
- The correct WeCo communication protocol
- Recommended charging and discharge-voltage settings
- Suitable charge and discharge currents
- Correct cable sizes and protection devices
Professional installation by a qualified solar technician or authorised WeCo installer is recommended.
Technical details
Specifications
Specification Details
- Brand WeCo
- Model 5K3-XP
- Battery Type Rechargeable lithium battery
- Nominal Energy Approximately 5.3kWh
- Nominal Voltage 51.2V
- System Type Dual-voltage energy-storage battery
- Battery Management Integrated BMS
- Installation Style Floor standing
- Application Solar-energy storage and backup power
Exact amp-hour capacity, charge and discharge current, operating-voltage range, cycle life, communication protocol and expansion limits should be confirmed from the official WeCo technical datasheet before installation.
Questions and answers
Before you order
What is the battery’s storage capacity?
The WeCo 5K3-XP provides approximately 5.3kWh of nominal energy storage.
What is its nominal voltage?
It is commonly used as a 51.2V low-voltage battery module.
What does dual voltage mean?
It means the battery platform can be used in selected low-voltage or high-voltage WeCo system configurations, depending on the approved installation setup.
Can it be used with a 48V inverter?
Yes, provided the inverter supports the WeCo 5K3-XP low-voltage configuration and the correct communication protocol.
Can multiple batteries be connected together?
Yes. The modular design supports expansion, subject to WeCo’s approved configuration and maximum system limits.
Can it be used for home backup power?
Yes. It is suitable for essential household loads when paired with a compatible inverter and properly sized solar system.
Can it power a refrigerator?
It may support an energy-efficient refrigerator, but the appliance’s starting wattage and inverter capacity should be checked first.
Can it be charged from solar panels and the grid?
Yes, when connected to a compatible hybrid inverter that supports both solar and utility charging.
Is professional installation recommended?
Yes. Dual-voltage battery systems require correct configuration, communication settings, protection and cable sizing.
Not sure this is the right product?
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