Solax Triple Power 5.8kWh Slave Battery (V2): The Simple Way to Expand Your High Voltage Storage

Need more energy storage from your Solax system? The Solax Triple Power 5.8kWh Slave Battery (SOLAX-TP-5.8S V2) is the perfect solution. Designed to seamlessly integrate with a Solax Triple Power 5.8kWh Master Battery (V2), this extension module allows you to easily increase your overall storage capacity. Store more excess energy from your solar panels and gain greater independence from fluctuating energy tariffs and the grid.

Boost Your Capacity with High Voltage Storage

This slave unit adds a substantial 5.8kWh nominal capacity (5.1kWh usable, according to the V2 specifications) to your existing high-voltage (HV) battery energy storage system. Expanding your storage means you can power your home for longer during evenings, cloudy days, or power cuts, maximising the benefits of your solar inverter and panels.

Built on Safe and Reliable LiFePO4 Technology

Safety is paramount. Like the Master unit, this Slave battery employs Lithium Iron Phosphate (LFP) chemistry, recognised for its excellent thermal stability and long lifespan. The technical documents confirm a design life exceeding 6000 cycles and IP65 protection, making it suitable for various installation locations. It connects via RS485 to the Master unit or other Slave units in the chain.

Flexible Expansion for Growing Energy Needs

The Triple Power V2 system is designed for flexibility. Depending on your connected Solax hybrid inverter, you can add multiple slave units to a single master. The datasheet indicates that X1-Hybrid inverters typically support one master and up to two slave batteries, while X3-Hybrid inverters can support one master and up to three slaves. This allows for systems ranging from 5.8kWh up to 23kWh. Always ensure compatibility and correct solar cabling for installation.

Why Evergy Recommend This Product

The Solax TP-5.8S Slave battery is highly recommended for expanding your V2 system:

• Provides a straightforward 5.8kWh capacity increase.
• Uses safe, reliable, and long-lasting LFP battery cells.
• Integrates perfectly with the TP-5.8M Master V2 unit for easy expansion.
• Features IP65 protection suitable for various environments.

Technical Highlights

Key specifications from the V2 datasheet:

• Added Nominal Capacity: 5.8 kWh
• Added Usable Energy: 5.1 kWh
• Battery Type: Li-ion (LFP)
• Communication (to Master/Slave): RS485

Note: This is an extension module and requires a compatible Solax Triple Power Master V2 battery and Solax inverter to function. For full system specifications, consult the V2 Master datasheet and your inverter documentation.

Expand Your Energy Storage Today

Increase your home's energy resilience by adding the Solax Triple Power 5.8kWh Slave battery. Ensure you have the necessary solar mounting system if required. Explore our full range of Solax batteries and compatible inverters to complete your setup.