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Fogstar Energy Server Rack Battery 48V (5.12kWh)


We apologise, but this product is out of stock right now. Don't worry, you can still pre-order it and we'll be sure to let you know as soon as it's ready to ship - we anticipate this to be the 23rd August

As a homeowner or business owner embracing solar energy, you're undoubtedly seeking reliable and efficient battery storage solutions to maximize your energy independence. Look no further than the Fogstar Energy SR51.2V Server Rack Battery, a UK-designed marvel that seamlessly integrates with your solar setup.

Unmatched Performance and Durability

Designed to withstand the rigors of daily use, the Fogstar Energy SR51.2V Server Rack Battery boasts an impressive 5.12kWh capacity, ensuring ample power storage for your  appliances.

Constructed with 16 premium Grade A EVE cells, this battery delivers an industry-leading 4000 cycles at 80% Depth of Discharge (DOD), guaranteeing exceptional longevity.

Seamless Integration and Easy Operation

The Fogstar Energy SR51.2V Server Rack Battery seamlessly integrates with your existing solar system, thanks to its pre-loaded inverter protocols with 'out of the box' support for leading inverter brands like Victron, Pylontech, Growatt, Sofar, Solis, and Goodwe. 

The intuitive LCD touchscreen allows you to change the inverter protocol without the hassle of downloading BMS software.

Unwavering Reliability in Harsh Conditions

Engineered to thrive in the UK's diverse climate, the Fogstar Energy SR51.2V Server Rack Battery automatically activates its internal heating system when temperatures dip below 5°C, enabling charging even in frigid conditions as low as -20°C.

For added peace of mind, a 125Amp DC Breaker safeguards against faults, ensuring the battery's integrity and your safety.

Expandable power storage 

As your energy demands grow, so should your energy storage capabilities. The Fogstar Energy SR51.2V Server Rack Battery seamlessly adapts to your evolving needs, offering a scalable solution that can expand alongside your solar system. With the ability to connect up to 15 rack batteries in parallel, you can effortlessly increase your storage capacity to match your energy consumption patterns.

UK-Climate Ready 
Auto-heating for efficient charging in temperatures as low as -20°C.
Pre-loaded Inverter Protocols 
Hassle-free integration with major inverter brands.
User-Friendly LCD Touchscreen 
Effortless inverter protocol adjustments.
Industry-Leading Lifespan 
4000 cycles at 80% DOD for extended battery life.
Robust Safety Features 
125Amp DC Breaker for enhanced protection.

With the Fogstar Energy SR51.2V Server Rack Battery, you can harness the power of your solar energy system to its fullest potential. Store excess solar energy during the day and utilise it to power your home or business throughout the night, even during grid outages. 

We've used the Gold Standard PACE BMS in our Rack batteries, want to know why? Read our blog to find out.

Looking for a Server Rack Battery Cabinet solution?
Take a look at our ESR51.2V Energy Storage Cabinets, available in a three battery (15kWh) or six battery (30kWh) capacity.

  • Manufacturer: Fogstar Energy
  • Model: ESR51.2V 5.12KWH
  • EVE Cell Model: LF100LA
  • Cell Assembly: 16S1P
  • Cycle Life: 4000 Cycles at 1C to 80%. (After 4000 cycles, you will still have a battery that can deliver 80% of the stated capacity) 5.12Kwh is fully useable.
  • BMS: PACE 100A BMS
  • Maximum Discharge: 100A
  • Balance Current: 0.5A
  • Capacity: 100ah
  • Weight: 45.2kg
  • Nominal Voltage: 51.2V
  • Rack Unit Size: 3.5U
  • Size: 3.5U or 450(W) x160(H) x 440(L) mm
  • Pre-loaded Inverter Protocols: Victron, Sofar, Pylontech, Growatt, Solis, Goodwe.

  • Fogstar ESR51.2V 5.12KWH Rack Battery
  • PC communication cable RS232 to USB
  • One Battery to Battery (B2B) communication cable (RS485 to RS485)
  • x1 Positive 35mm cable
  • x1 Negative 35mm cable.

The Fogstar ESR51.2V 5.12KWH systems are not compatible with other types or models of rack battery on the market, this may be due to discrepancies in power/size of the unit, BMS or overall system compatibility. Please do not attempt to connect your Fogstar Rack Battery to any other make or model of Rack Battery on the market. If you are unsure about your set-up requirements, please contact our customer service team before making a purchase.

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