Sunsynk 61.44kWh High-Voltage Battery System (Complete Package)
The Sunsynk 61.44 kWh HV Battery System (part number SUN-HV-61.44) is a complete high-voltage energy storage package comprising 12 x Sunsynk HV 5.12 kWh battery modules, 1 x Sunsynk HV BMS, and 1 x full-height battery rack with door. This is a ready-to-install maximum-capacity package providing 61.44 kWh of total storage at 100% depth of discharge, with peak discharge capability of 1C (100 A) per module. The system requires a compatible Sunsynk hybrid inverter (sold separately). Total package weight: 644 kg. Available from DECO Group, a UK-based solar and energy storage wholesaler for professional trade installers.
Package Contents
- 12 x Sunsynk 5.12 kWh Single Battery Unit for HV Series (SUN-HV-5.12-BATT)
- 1 x Sunsynk BMS for HV Series (SUN-HV-BMS)
- 1 x Battery Rack with Door for 61.44 kWh HV System (SUN-HV-61.44-BATTRACK-DOOR) — shipped as a 2-piece pack
System Specifications
- Total nominal capacity: 61,440 Wh (61.44 kWh)
- Battery chemistry: Lithium iron phosphate (LiFePO₄)
- Depth of discharge: 100%
- Module nominal voltage: 51.2 V each
- Peak discharge current per module: 100 A (1C)
- Maximum charge current: 100 A
- Maximum discharge current: 100 A
- BMS manages up to 12 modules (this package is the maximum configuration)
- Communication: CAN / RS485
- Cycle life: over 6,000 cycles
- Total package weight: 644 kg
Component Weights
- Battery modules: 12 x 44 kg = 528 kg
- BMS: 19 kg
- Rack with door: 97 kg
- Total: 644 kg
Rack Specifications
- Capacity: 12 x 5.12 kWh battery modules + BMS
- Dimensions: 2,240 x 589 x 590 mm (H x W x D)
- Lockable door
- Shipped as a 2-piece pack
Key Features
- Complete ready-to-install 61.44 kWh HV storage system — the maximum single-stack configuration
- All required components included: 12 battery modules, BMS, and full-height rack
- 100% depth of discharge for maximum usable energy
- LiFePO₄ chemistry with over 6,000 cycle life
- Full-height vertical rack minimises floor footprint
- Lockable rack door for security and protection
- 10-year manufacturer warranty on batteries
System Compatibility
- Compatible with Sunsynk hybrid inverters (sold separately)
- Inverter not included in this package
- This is the maximum single-stack configuration (12 modules per BMS)
Installation Notes
- Total package weight: 644 kg. Individual components must be lifted and installed separately
- Rack: 97 kg (empty) — mechanical lifting assistance required
- Battery modules: 44 kg each — two-person lift required per module
- BMS: 19 kg
- At 2,240 mm tall, ensure adequate ceiling height at the installation location
- Assess floor loading capacity for the fully loaded weight of 644 kg
- Must be installed by a qualified electrician or technician
Warranty
- Battery modules: 10-year manufacturer warranty
Common Questions
Click a question below to reveal the answer.
Is an inverter included in this package?
No. This package includes 12 battery modules, BMS, and rack only. A compatible Sunsynk hybrid inverter must be ordered separately.
Can I add more storage beyond 61.44kWh?
This is the maximum single-stack configuration (12 modules per BMS). For additional capacity, a second complete system would be required with its own BMS and rack, connected to a second inverter or a parallel-capable inverter with dual battery inputs.
What is the difference between the 20.48kWh and 61.44kWh systems?
The 20.48 kWh system (SUN-HV-20.48) includes 4 battery modules in a compact cabinet (1,040 mm tall, 279 kg total). The 61.44 kWh system includes 12 modules in a full-height rack (2,240 mm tall, 644 kg total). Both use the same HV battery modules and BMS. The 20.48 kWh system can be expanded with additional modules but would eventually require the larger rack.
What floor loading is required?
The fully loaded system weighs 644 kg concentrated in a 589 x 590 mm footprint. The installation surface must be assessed to confirm it can support this weight safely.
DECO Group supplies Sunsynk HV battery systems in both 20.48 kWh and 61.44 kWh configurations alongside individual components and compatible hybrid inverters. Visit decogroup.co.uk for the full catalogue.
About DECO Group
We supply battery storage systems, inverters, and installation accessories to professional installers across the UK. Visit decogroup.co.uk.
