Skip to main content
⚡
Rising Eskom tariffs? Hybrid solar systems on promo
Expertly engineered, pre-assembled, and professionally wired for long-term performance using trusted Victron and storageDOCK lithium battery tech.
Explore Systems
energydock

7.40 kWh 51.2V LiFePO4 (LFP) StorageDOCK Battery

The Storagedock ES7.4K is a high-capacity 51.2V LiFePO4 battery designed for professional-grade energy storage in demanding residential and commercial environments. Offering 7.40kWh of total energy, this unit features bolted Grade A Prismatic cells and a 10-year warranty, providing a powerful and scalable solution for 48V systems.

Retail price: R26,635.16 excl. VAT

Documentation
Installation Manuals
Enquiry

Robust High-Capacity Energy Storage

The Storagedock ES7.4K (51.2V / 144Ah) is engineered for maximum reliability and power density. Built with bolted Grade A LiFePO4 Prismatic cells clamped at 5000N and protected by MICA-based dividers, this battery is designed for extreme durability and thermal stability. With 5.92kWh of usable energy at 80% Depth of Discharge and a rating of 4,000 cycles, it is an ideal choice for high-demand off-grid and backup applications.

Intelligent Monitoring & System Control

Equipped with a 3-page color touch screen, the ES7.4K provides instant on-site access to critical performance metrics. For advanced management, the battery includes a Bluetooth interface for mobile app connectivity (Android and iOS) and CAN-bus communication specifically designed for Victron Energy GX devices. The system continuously records historic parameters and features integrated SOC and SOH communications for precise battery bank management.

Advanced Safety & Industrial Scalability

The ES7.4K features a high-output 150A BMS and an integrated 125A circuit breaker with trip function. To ensure long-term cell health, a 3A active cell balancer works continuously to maintain voltage equilibrium across the pack. For larger infrastructure needs, up to 8 units can be connected in parallel, creating an expansive 59.2kWh energy storage system. The unit is housed in a rugged polymer-coated steel shell with a galvanized steel internal cell pack, suitable for wall or floor mounting.

Key Product Specifications

  • Battery Type: Grade A LiFePO4 Prismatic Cells (Bolted)
  • Nominal Voltage: 51.2 VDC
  • Total Energy Capacity: 7.40 kWh (144 Ah)
  • Usable Energy: 5.92 kWh (@ 80% DoD)
  • User Interface: 3-Page Color Touch Screen & Bluetooth App
  • Communication: CAN-bus (Victron Interface)
  • Protection: 125A Circuit Breaker (with trip) & 150A BMS
  • Recommended Inverter: 6kVA
  • Scalability: Parallel up to 8 Units
  • Warranty: 10 Years / 4000 Cycles @ 80% DoD

Related products

storageDOCK Residential & Lite Commercial Batteries

storageDOCK LV-Com 51.2 V LiFePO₄ Battery Range

Modular, low-voltage battery storage built for commercial, agricultural, and high-demand energy systems.

Designed on stable LiFePO₄ technology and fully integrated with Victron GX, the LV-COM range delivers reliable performance, clean installation, and scalable capacity from 16.4 kWh up to 393.6 kWh. Manufactured locally and backed by full technical support and RMA capability, these systems provide confidence and accountability long after installation.

Built on nearly a decade of battery development and supported by close to two decades of renewable energy industry experience, LV-COM is a flexible, future-ready storage platform engineered for long-term reliability and growing energy demands.

View Details
storageDOCK 51.2 V LiFePO₄ Battery Range

High-quality LiFePO₄ battery systems designed for residential and light commercial use, delivering reliable energy storage for everyday applications.

Engineered using A-grade cells and built for long-term reliability, these systems feature a modular design that allows you to start small and scale as your energy needs grow. Seamless Victron integration ensures smart monitoring, control, and efficient system performance.

Manufactured locally and backed by full technical support and RMA capability, the range is supported by real-world experience gained over years in the renewable energy industry, providing dependable performance and long-term confidence.

View Details
storageDOCK 25.6 V LiFePO₄ Battery Range

storageDOCK 25.6 V Range

Compact LiFePO₄ battery systems designed for residential and smaller energy storage applications, delivering reliable performance in a clean, efficient format.

Built with a durable steel enclosure and clamped, MICA-insulated cells, these units are engineered for long-term reliability and thermal stability. Their modular design allows for flexible system expansion, while seamless Victron integration enables smart monitoring and control.

Manufactured locally and backed by full technical support and RMA capability, the range is supported by real-world experience gained over years in the renewable energy industry, delivering dependable performance and long-term confidence.

View Details
storageDOCK 12.8 V LiFePO₄ Battery Range

Camping & Portable – storageDOCK 12.8 V “Rugged” Range

Compact LiFePO₄ battery systems designed for small off-grid and portable applications, delivering reliable performance in a durable, field-ready format.

Built with a tough steel enclosure and clamped, MICA-insulated cells, these units are engineered for long-term reliability in demanding environments. The modular design allows flexible system expansion, while seamless Victron integration enables smart monitoring and control.

Manufactured locally and backed by full technical support and RMA capability, the range is supported by real-world experience gained over years in the renewable energy industry, providing confidence and dependable performance wherever it is used.

View Details

    energyPOD Range – Containerized Energy. Anywhere

    energyPOD Small Range

    Compact, all-in-one power plant for homes, lodges and small businesses.

    • 5–15 kVA with up to 32.8 kWh of Storagedock LiFePO₄ storage in a compact, climate-controlled steel enclosure.
    • Factory-built with Victron Multiplus II, full AC/DC protection and Wi-Fi-enabled monitoring for fast, tidy installations.
    • Ideal for off-grid, hybrid or UPS use, with separate essential and non-essential load outputs (AC1/AC2).
    View Details
    energyPOD Medium Range

    Scalable pod for growing commercial, agri and light industrial sites.

    • 15–30 kVA single- or three-phase with up to 49.2 kWh of modular battery storage in a three-battery stack.
    • Advanced BMU-controlled batteries with motorised breaker and resistive circuit for precise protection and longer life.
    • Victron Quattro with dual AC inputs for automated generator + grid integration and full remote management via GX/VRM.
    View Details
    energyPOD Large Three-Phase Range

    Mini-substation in a box for estates, campuses and mini-grids.

    • 15–45 kVA three-phase with up to 65.6 kWh of storage, built for high loads and long autonomy.
    • Four-battery architecture with BMU, motorised breaker and Grade-A EV-class cells for maximum uptime and cycle life.
    • Designed for decentralised utilities: supports large PV arrays, generator integration and multi-pod paralleling for higher kVA and redundancy.
    View Details
    energyPOD Add-ons
    Discover essential accessories to boost the performance and personalization of your modular, solar-powered energyPOD. Our ad-ons empower you to customize your energy experience, whether you need to expand capacity, enhance functionality, or match your specific needs.
    View Details

      Victron Energy Products Range

      Specialized Solar Systems: Victron Power, Perfected. As a certified Victron Energy distributor, Specialized Solar Systems delivers the ultimate in power solutions. We stand behind Victron’s unmatched quality, providing everything from inverters and chargers to advanced monitoring systems. Whether it’s off-grid, commercial, or mobile applications, Victron’s seamless ecosystem – with VictronConnect and VRM portal integration – ensures reliability, flexibility, and smart energy management. More importantly, you get complete system design, expert support, and full warranty coverage throughout Southern Africa. We’re with you every step of the way, ensuring your power is truly perfected.