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2.8 kWh 12.8V LiFePO4 (LFP) storageDOCK Battery

Premium Lithium Performance

The storageDOCK ES2.8K (12.8V / 220Ah) offers a significant upgrade over traditional battery technologies. By utilizing Grade A LiFePO4 Prismatic cells, this battery delivers superior energy density and consistent voltage discharge. With a clamped force of 5000N and MICA-based dividers for cell insulation, it is built to withstand the rigors of both stationary and mobile environments, ensuring long-term structural and electrical integrity.

Advanced Safety & Protection

Safety is integrated into every level of the ES2.8K. The battery is equipped with a high-quality Internal Battery Management System (BMS) capable of handling 50A for both charge and discharge. For added physical protection, it features an integrated 125A single-pole circuit breaker, allowing for safe manual isolation and protection against over-current events. This robust internal architecture supports a long service life of up to 4,000 cycles at 80% Depth of Discharge.

Versatile Applications

Designed primarily for smaller power requirements, the ES2.8K is recommended for use with inverters up to 1.5kVA. Its compact footprint and 12.8V nominal voltage make it perfect for 4×4 canopy builds, marine electronics, small solar home systems, and portable power boxes. Note that this specific model is designed for standalone use or simple parallel setups with CAN-bus communication requirements.

Key Product Specifications

  • Battery Type: Grade A LiFePO4 Prismatic Cells
  • Nominal Voltage: 12.8 VDC
  • Total Energy Capacity: 2.8 kWh (220 Ah)
  • Usable Energy: 2.24 kWh (@ 80% DoD)
  • Maximum Discharge Current: 80A
  • BMS Rating: 150A Charge / 150A Discharge
  • Protection: Integrated 125A SP Circuit Breaker
  • Cycle Life: 4000 Cycles @ 80% DoD
  • Warranty: 10-Year Limited Warranty
TECHNICAL SPECIFICATIONS ES2.8K N-12V – 12.8V
Product code ES2.8K N-12V
Battery type Grade A LiFePO4 prismatic cells, bolted
Insulated cells MICA base dividers
Clamped force 5000N
Nominal voltage 12.8 VDC
Nominal Ah 220 Ah
Total energy capacity 2.80 kWh
Available energy @ 80% DOD 2.24 kWh
Recommended charge current 50 A
Maximum charge current 80 A
Charge voltage “bulk” / “absorption” 14.1 VDC
Charge voltage “float” 13.8 V
Recommended discharge current 70 A
Maximum discharge current 125 A
Circuit Breaker / Protection 125 A SP c/breaker
BMS ampere 150A/150A
Cell balancer – Active Active Balancer 3A
Recommended inverter size 1.5 KVA
Maximum parallel of units 4
Parallel Ampere per unit: Discharge 125A / 200A / 250A / 300A
Parallel Ampere per unit: Charge 80A / 160A / 200A / 250A
CAN-Bus connection Yes, CAN-bus
Connectivity / Compatibility Bluetooth APP (Android/iOS) / Victron Energy, Sunsynk, Deye
Recommended operating temp: Charge 0°C to 45°C
Recommended operating temp: Discharge 0°C to 50°C
Warranty period 10 Yrs / 4000 cyc @ 80% DOD
Nett weight NA
Dimensions (h x w x d) 410mm x 340mm x 165mm
Recommended cable size 50mm
Installation conditions Dry, Clean, Regulated temperature
Ventilation distance 150 mm all sides
Enclosures Galvanized steel cell packs & polymer coated steel case
Mounting / Installation Type Indoors – Wall/Floor
User Interface 3-page colour touch screen

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