Volta Stage 3 10.24kWh 51.2V 200Ah Lithium Battery (New Generation)
Overview of the Volta Stage 3 10.24kWh Battery
The Volta Stage 3 10.24kWh battery is a low-voltage lithium iron phosphate (LiFePO4) energy storage solution from the Volta New Generation range. Designed for residential and light commercial solar and backup power systems, this battery operates at a nominal voltage of 51.2V and provides a higher capacity option compared to smaller Volta Stage models.
What the Volta Stage 3 Battery Is Designed to Do
The Volta Stage 3 10.24kWh lithium battery stores DC electrical energy from solar generation or grid charging and supplies that energy to a compatible low-voltage inverter. It is designed to:
- Provide extended backup power during grid outages
- Support daily cycling in hybrid solar systems
- Handle higher household and small commercial loads
- Scale efficiently for larger energy storage systems
What the Volta Stage 3 Battery Is Not
The Volta Stage 3 is a battery only and does not perform inverter functions. Specifically:
- It is not an inverter and cannot produce AC power
- It does not include MPPT charge controllers
- It does not connect directly to photovoltaic panels
- It must not be connected to high-voltage battery systems
System Type and Voltage Class
The Volta Stage 3 10.24kWh battery is designed for 48V-class low-voltage battery systems. Key electrical characteristics include:
- Nominal battery voltage: 51.2V
- Low-voltage DC battery architecture
- Compatible with low-voltage hybrid and off-grid inverters
Battery Chemistry and Cell Technology
The battery uses lithium iron phosphate (LiFePO4) cells, selected for their superior safety, thermal stability, and long service life. This chemistry enables:
- Stable performance under high discharge currents
- Long cycle life for daily charge and discharge
- Improved safety compared to other lithium-ion chemistries
Battery Management System and Protection
An integrated intelligent battery management system protects the Volta Stage 3 battery during operation. Protection and control functions include:
- Over-charge and over-discharge protection
- Over-current and short-circuit protection
- High and low temperature protection
- Automatic cell balancing
Charge and Discharge Performance
The Volta Stage 3 battery is designed to support higher inverter loads while maintaining system stability.
Charge Specifications
- Standard charge voltage: 56.8V
- Charge temperature range: 0°C to 55°C
Discharge Specifications
- Maximum continuous discharge current: 150A
- Discharge cut-off voltage: 44.8V
- Discharge temperature range: -20°C to 55°C
Scalability and Parallel Operation
The Volta Stage 3 battery supports modular expansion for larger energy storage systems. Parallel features include:
- Automatic CAN-based parallel communication
- Support for up to 16 battery modules connected in parallel
- Retention of a 51.2V system voltage during expansion
Communication and Inverter Integration
The battery communicates with compatible inverters using:
- CAN communication
- RS485 communication
- USB interface for service and diagnostics
The Volta Stage 3 battery is compatible with a wide range of inverter brands commonly used in South Africa.
Technical Specifications – Volta Stage 3 10.24kWh Battery
- Battery chemistry: LiFePO4
- Nominal energy capacity: 10.24kWh
- Nominal capacity: 200Ah
- Nominal voltage: 51.2V
- Cycle life: ≥6000 cycles at 80% depth of discharge
Physical Specifications and Installation
The Volta Stage 3 battery supports flexible installation depending on site requirements.
- Installation type: Wall-mounted or floor-standing
- Dimensions: 480 × 650 × 225 mm
- Net weight: 89 kg
Environmental Operating Limits
- Operating temperature range: -20°C to 55°C
Typical Applications for the Volta Stage 3 Battery
- Residential backup power systems
- Hybrid solar energy storage systems
- Low-voltage off-grid solar installations
- Scalable household and small commercial energy storage
FAQ
Frequently Asked Questions
What inverter size is suitable for the Volta Stage 3 battery?
With a maximum continuous discharge current of 150A at 51.2V, the battery can support low-voltage inverters up to approximately 7.5kW, depending on system design and inverter efficiency.
How does the Volta Stage 3 compare to the Volta Stage 1?
The Stage 3 offers double the energy capacity at 10.24kWh and a higher discharge current, making it more suitable for larger homes and higher load demands.
How many Volta Stage 3 batteries can be connected together?
Up to sixteen batteries can be connected in parallel using automatic CAN communication, allowing significant system expansion.
Is the Volta Stage 3 suitable for daily cycling?
Yes. The battery is rated for at least 6000 cycles at 80% depth of discharge and is designed for daily charge and discharge operation.
Can the battery handle high surge loads?
Yes. The battery’s 150A discharge capability allows it to support short-duration surge loads common in residential inverter systems.
Does the battery include internal protection?
Yes. The integrated BMS provides over-charge, over-discharge, over-current, temperature, and short-circuit protection.
Can the Volta Stage 3 battery be wall-mounted?
Yes. The battery supports both wall-mounted and floor-standing installation depending on site requirements and structural support.
Which inverter brands are compatible with this battery?
The battery is compatible with many low-voltage inverter brands including Growatt, Luxpower, Deye, Goodwe, Sofar, Victron, Voltronic, SMA, SRNE, and Solis.
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