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9.40 kWh 51.2V LiFePO4 (LFP) StorageDOCK Battery

The Storagedock ES9.4K is the flagship high-capacity 51.2V LiFePO4 battery, engineered for extensive residential and commercial energy demands. Boasting a massive 9.40kWh of total energy, this unit features bolted Grade A Prismatic cells and a 10-year warranty, providing a high-density, professional-grade solution for 48V systems.

Retail price: R37,240.34 excl. VAT

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Massive Energy Reserves & Industrial Build

The Storagedock ES9.4K (51.2V / 184Ah) is designed for users requiring substantial energy storage without compromising on space or safety. Built with bolted Grade A LiFePO4 Prismatic cells clamped at 5000N and insulated with MICA-based dividers, it ensures maximum structural integrity. With 7.52kWh of usable energy at 80% Depth of Discharge, it is a powerhouse capable of supporting heavy loads in mission-critical environments.

Comprehensive Smart Ecosystem

Stay fully informed with the ES9.4K’s advanced monitoring suite. The unit features an integrated 3-page color touch screen for local data access, supplemented by a Bluetooth App for mobile monitoring on Android and iOS. For system-wide integration, it includes CAN-bus communication fully compatible with Victron Energy ecosystems, providing precise SOC (State of Charge) and SOH (State of Health) data while recording all historic battery parameters.

Unrivaled Protection & Scalability

Safety is managed by a high-performance 200A BMS paired with a circuit breaker with trip function for reliable over-current protection. To ensure the longevity of the cell pack, a 3A active cell balancer works continuously to keep all cells perfectly equalized. For large-scale power requirements, up to 8 units can be connected in parallel, creating an immense 75.2kWh energy bank. The battery is housed in a durable galvanized steel cell pack with a polymer-coated steel shell, designed for professional wall or floor mounting.

Key Product Specifications

  • Battery Type: Grade A LiFePO4 Prismatic Cells (Bolted)
  • Nominal Voltage: 51.2 VDC
  • Total Energy Capacity: 9.40 kWh (184 Ah)
  • Usable Energy: 7.52 kWh (@ 80% DoD)
  • User Interface: 3-Page Color Touch Screen & Bluetooth App
  • Communication: CAN-bus (Victron Interface)
  • Protection: 200A BMS & Circuit Breaker with trip function
  • Recommended Inverter: 8kVA – 10kVA
  • Scalability: Parallel up to 8 Units
  • Warranty: 10 Years / 3000 Cycles @ 80% DoD
Technical Specifications ES9.4K – 51.2V
Product code ES9.4K
Battery type Grade A LiFePO₄ prismatic cells, bolted
Number of internal modules 1
Nominal voltage 51.2 V
Nominal Ah 184 Ah
Total energy capacity 9.40 kWh
Available energy @ 80% DOD 7.52 kWh
Recommended charge current 0.5C
Maximum charge current 160 A
Bulk / Absorption charge voltage 56.2 VDC
Float voltage 56.2 VDC
Sync voltage Over ruled by BMS ± 55.2 VDC
Recommended discharge current 0.5C
Maximum discharge current 200 A
Protection: Circuit breaker type 200 A with trip
BMS ampere & number 200 A x 1
Recommended inverter size 8 kVA
Maximum parallel of units 8
Parallel ampere per unit: Discharge 200A / 400A / 500A / 600A / 600A / 600A / 600A / 600A
Parallel ampere per unit: Charge 160A / 320A / 400A / 500A / 500A / 500A / 500A / 500A
CAN-bus communication Yes
Recommended operating temp: Charge 5° – 45°C
Recommended operating temp: Discharge 0° – 50°C
Warranty period 10 Years / 3000 cycles @ 80% DOD
Nett weight 78kg
Dimensions (h x w x d) 670mm x 600mm x 170mm
Recommended cable size 70mm²
Installation type Indoors – Wall / floor
Ventilation distance 200mm
Installation conditions Dry. Clean. Regulated temperature
Enclosure Galvanized steel cell pack. Polymer coated steel shell
User interface 3 “page” colour touch screen
Essential accessories Storagedock 200A cable kit

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