Volta Stage 4 (2nd Generation) 14.34kWh 51.2V 280Ah LiFePO4 Battery
Overview of the Volta Stage 4 14.34kWh Battery
The Volta Stage 4 (2nd Generation) is a high-capacity low-voltage lithium iron phosphate (LiFePO4) battery designed for residential and light commercial solar energy storage systems. With a nominal voltage of 51.2V and a 280Ah capacity, the Stage 4 battery delivers extended runtime, strong discharge capability, and modular scalability in a wall-mounted or floor-standing enclosure.
What the Volta Stage 4 Battery Is Designed to Do
The Volta Stage 4 battery stores DC electrical energy and supplies it to a compatible low-voltage inverter. It is designed to:
- Provide extended backup power during grid outages
- Support daily cycling in hybrid and off-grid solar systems
- Increase solar self-consumption in residential installations
- Scale system capacity by paralleling multiple batteries
What the Volta Stage 4 Battery Is Not
This battery is a storage device only and does not perform inverter functions. Specifically:
- It is not an inverter and cannot generate AC power
- It does not include MPPT charge controllers
- It does not connect directly to solar panels
- It must not be used in high-voltage battery systems
System Type and Voltage Class
The Volta Stage 4 battery is designed for 48V-class low-voltage battery systems.
- Nominal battery voltage: 51.2V
- Standard charge voltage: 56.8V
- Discharge cut-off voltage: 44.8V
- Low-voltage DC architecture compatible with hybrid and off-grid inverters
Battery Chemistry and Safety Design
The battery uses lithium iron phosphate (LiFePO4) chemistry, selected for safety, thermal stability, and long service life.
- High resistance to thermal runaway
- Stable discharge characteristics
- Long cycle life under daily cycling conditions
Battery Management System and Protection
An integrated battery management system actively monitors and protects the battery during operation.
- Over-charge and over-discharge protection
- Over-current and short-circuit protection
- Temperature monitoring during charge and discharge
- Automatic cell balancing
Charge and Discharge Performance
Charge Specifications
- Standard charge voltage: 56.8V
- Recommended charge rate: 0.2C
Discharge Specifications
- Maximum discharge current: 200A
- Nominal energy capacity: 14.34kWh
Scalability and Parallel Expansion
The Volta Stage 4 battery supports modular system expansion.
- Support for up to 16 batteries connected in parallel
- Parallel expansion increases both energy capacity and available discharge current
- Auto-dial CAN communication for multi-battery systems
Communication and Inverter Integration
The battery supports standard low-voltage inverter communication protocols.
- CAN communication
- RS485 communication
- USB communication
- WiFi remote monitoring with cloud access
Technical Specifications – Volta Stage 4 (2nd Gen)
- Battery chemistry: LiFePO4
- Nominal energy capacity: 14.34kWh
- Nominal voltage: 51.2V
- Nominal capacity: 280Ah
- Depth of discharge: 80%
- Cycle life: ≥6000 cycles at 80% DOD (25°C)
Physical Specifications and Installation
The Volta Stage 4 battery supports both wall-mounted and floor-standing installation.
- Installation type: Wall-mounted or floor-standing
- Dimensions: 490 × 840 × 242 mm
- Net weight: 123 kg
Environmental Operating Limits
- Charging temperature range: 0°C to 55°C
- Discharging temperature range: -20°C to 55°C
Typical Applications for the Volta Stage 4 Battery
- Residential solar energy storage systems
- Hybrid and off-grid solar installations
- High-capacity home backup power systems
- Scalable low-voltage battery banks
FAQ
Frequently Asked Questions
What inverter sizes are typically paired with the Volta Stage 4 battery?
The Volta Stage 4 offers a 280Ah capacity with up to 200A discharge capability, making it suitable for medium to larger low-voltage inverter systems. Inverter selection depends on expected continuous loads, surge behaviour, and whether additional batteries will be added later.
Can the Volta Stage 4 support higher household loads?
Yes. The high amp-hour capacity allows the battery to support higher loads and longer runtime compared to smaller low-voltage batteries, particularly when combined with additional units in parallel.
How many Volta Stage 4 batteries can be connected together?
Up to sixteen batteries can be connected in parallel, allowing substantial expansion of both energy capacity and available discharge current.
Is the battery 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.
Which inverter brands are compatible with the Volta Stage 4 battery?
The Volta Stage 4 battery supports standard 48 V low-voltage inverter communication protocols (such as CAN and RS485), and is designed to integrate with a wide range of hybrid and off-grid inverters that support lithium LiFePO₄ batteries. Many major inverter brands commonly used in South African installations (such as Deye, Sunsynk, GoodWe, Victron, SMA, Growatt, Solis, LuxPower, and others) can be configured to work with 48 V LiFePO₄ batteries when the inverter’s communication settings and battery profiles are correctly set. Always confirm specific inverter compatibility with the inverter and battery manufacturer before installation.
Does the battery support remote monitoring?
Yes. The battery includes WiFi remote monitoring with cloud access for system status and performance visibility.
Can the Volta Stage 4 be wall-mounted?
Yes. The battery supports both wall-mounted and floor-standing installation depending on site requirements.
Reviews
There are no reviews yet.