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12.00 kWh 51.2V LiFePO4 (LFP) StorageDOCK Battery

The Storagedock ES12K is an industrial-strength 51.2V LiFePO4 battery, representing the highest single-unit capacity in the range for large-scale residential and commercial applications. Delivering a massive 12kWh of total energy, this unit is built with bolted Grade A Prismatic cells and a 10-year warranty, offering a high-density power solution for demanding 48V systems.

Retail price: R47,004.96 excl. VAT

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Flagship Capacity & Industrial Build

The Storagedock ES12K (51.2V / 234Ah) is engineered for users who require the maximum possible energy density in a single footprint. Constructed with bolted Grade A LiFePO4 Prismatic cells clamped at 5000N and protected by MICA-based dividers, it ensures industry-leading structural integrity and thermal management. With 9.6kWh of usable energy at 80% Depth of Discharge and a 4,000-cycle rating, it is designed to power heavy-duty industrial and commercial loads with absolute reliability.

Advanced Monitoring & System Intelligence

Monitoring this high-capacity unit is made simple through a comprehensive digital suite. The ES12K features an integrated 3-page color touch screen for direct on-site data access, complemented by a Bluetooth App for mobile monitoring on Android and iOS. For seamless system integration, it includes CAN-bus communication fully compatible with Victron Energy ecosystems, providing high-resolution SOC (State of Charge) and SOH (State of Health) data while recording all historic battery parameters.

Elite Protection & Scalability

Safety is managed by a high-output 200A BMS and an integrated 200A circuit breaker with trip function. To maintain the health of the massive cell pack, a 3A active cell balancer works continuously to ensure voltage equilibrium. For large-scale infrastructure projects, up to 8 units can be connected in parallel, creating an expansive 96kWh energy storage bank. The unit is housed in a rugged polymer-coated steel shell with a galvanized steel internal cell pack, designed for professional wall or floor installation.

Key Product Specifications

  • Battery Type: Grade A LiFePO4 Prismatic Cells (Bolted)
  • Nominal Voltage: 51.2 VDC
  • Total Energy Capacity: 12 kWh (234 Ah)
  • Usable Energy: 9.6 kWh (@ 80% DoD)
  • User Interface: 3-Page Color Touch Screen & Bluetooth App
  • Communication: CAN-bus (Victron Interface)
  • Protection: 200A BMS & 200A Circuit Breaker with trip function
  • Recommended Inverter: 10kVA
  • Scalability: Parallel up to 8 Units (96kWh Total)
  • Warranty: 10 Years / 4000 Cycles @ 80% DoD
Technical Specifications ES12K – 51.2V
Product code ES12K
Battery type Grade A LiFePO₄ prismatic cells, bolted
Number of internal modules 1
Nominal voltage 51.2 V
Nominal Ah 234 Ah
Total energy capacity 12 kWh
Available energy @ 80% DOD 9.6 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 10 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 / 4000 cycles @ 80% DOD
Nett weight 96.3kg
Dimensions (h x w x d) 550mm x 530mm x 270mm
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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