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📍 We have moved. You'll now find us at Unit 11 Cartwright Road, Saxon Business Park, Stoke Prior, Bromsgrove B60 4AD
📍 We have moved. You'll now find us at Unit 11 Cartwright Road, Saxon Business Park, Stoke Prior, Bromsgrove B60 4AD

REFURBISHED ⚡ Fogstar Energy 15kWh 51.2V Rack Battery Bundle

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Original price £2,999.99
Current price £2,249.99
REFURBISHED ITEM
Full 10 Year Warranty
Fully Tested by Our In-House Team
Please see variant title for the Cycle life.
Rack Battery Variant Info
OLD version: 4 DIP switches. Parallel up to 16 units (or 15 units with Victron).
NEW version: 6 DIP switches. Parallel up to 32 units (or 31 units with Victron).
Please read the T&C’s below before purchasing a refurbished battery and for additional details or images, please contact our team at customerservice@fogstar.co.uk .
All items listed in our Refurbished section have been fully tested and verified by our battery technicians. Each product has undergone thorough functional testing to ensure reliability before being offered for sale. All Refurbished items are supplied with the full manufacturer’s warranty for complete peace of mind. Please note: clearance items are available in limited quantities and are sold on a first-come, first-served basis.

Store and manage your energy efficiently. The Fogstar Energy 15kWh Rack Battery Bundle provides a reliable, user-friendly solution for residential energy storage.

Built to Last

  • 15kWh Capacity: Store enough energy to power your home through outages or peak demand periods.
  • Three (3) SR51.2V Server Rack Batteries: Each battery is meticulously designed and packed with premium components including Grade A EVE cells and a PACE BMS.
  • UK-Designed Heating System: Efficiently charges even in cold environments thanks to the in-built heating system.
  • 8-Year Warranty: We stand behind the quality and performance of our products.

Unmatched Versatility and Control

  • Pre-loaded Inverter Protocols: Seamless integration with leading inverter brands (Victron, Pylontech, Growatt, Solis, Sofar, Goodwe).
  • 4.3" TFT LCD Touchscreen: Monitor your system status in detail with a user-friendly interface. You can also use your touchscreen to change your inverter protocol.
  • 4000 Cycle Life: Expect long-lasting performance with 4000 cycles at 80% DOD.
  • 16 Grade A EVE Cells: Industry-leading EVE cell technology delivers exceptional life and reliability.

Effortless Installation and Scalability

  • Integrated High-Quality Busbars: Our cabinets feature thick nickel-plated copper busbars for simple and reliable parallel battery connection.
  • Vented Design and Cable Management: Vented front panels ensure airflow, while unique circular cut-out cable access points (top and bottom) allow for clean and easy cable routing.
  • Scalable for Future Needs: Up to 15 units can be connected in parallel for increased storage capacity (series connection not supported).
  • Compact Cabinet Design: This bundle includes the Fogstar ESR51.2V Energy Storage Cabinet in a 3-rack configuration, perfect for homes with limited space.
  • Optional 6-rack cabinet bundle: Looking to upgrade your system in the future? Select a 6-rack cabinet bundle instead.
  • Cabinet Dimensions: 600 x 650 x 800mm

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 per unit (300A for a 15kWh system)
Balance Current: 0.5A
Capacity: 100Ah
Weight: 45.2kg
Nominal Voltage: 51.2V
Rack Unit Size: 3.5U
Size: 450(W) x 160(H) x 440(L)mm
Pre-loaded Inverter Protocols: Victron, Sofar, Pylontech, Growatt, Solis, Goodwe.

  • Fogstar ESR51.2V 5.12KWH Rack Battery (x3)
  • Fogstar ESR51.2V Battery 3 Rack Cabinet (x1)
  • PC communication cable RS232 to USB (x1)
  • Battery to Battery (B2B) communication cable (RS485 to RS485) (x3)
  • Positive 'dual' 8AWG cables (x6)
  • Negative 'dual' 8AWG cables (x6)
  • M6 threaded screws, bolts and washers for securing Racks to Cabinets (x18)

➡️ Download Specification Sheet

➡️ Download User Manual