KNYEE Energy 15.36kWh 51.2V 300Ah LiFePO4 Floor-Type Battery (KNY-P51300)
Overview of the KNYEE Energy 15.36kWh Battery
The KNYEE Energy KNY-P51300 is a high-capacity low-voltage lithium iron phosphate (LiFePO4) energy storage battery designed for residential and light commercial solar and backup power systems. With a nominal voltage of 51.2V and a large 15.36kWh energy capacity, this floor-type battery is engineered for high daily energy usage and scalable battery banks.
What the KNYEE Energy 15.36kWh Battery Is Designed to Do
The KNYEE Energy 15.36kWh LiFePO4 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 high daily energy consumption households
- Operate in hybrid and off-grid solar systems
- Scale efficiently for larger low-voltage battery banks
What the KNYEE Energy Battery Is Not
The KNYEE Energy 15.36kWh unit is a battery 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 connected to high-voltage battery systems
System Type and Voltage Class
The KNYEE Energy KNY-P51300 battery is designed for 48V-class low-voltage battery systems. Electrical characteristics include:
- Nominal battery voltage: 51.2V
- Operating voltage range: 40V to 58.4V
- Low-voltage DC architecture for inverter compatibility
Battery Chemistry and Safety Design
The battery uses ultra-safe lithium iron phosphate (LiFePO4) cell technology. This chemistry provides:
- High thermal stability and improved safety
- Long cycle life under daily cycling conditions
- Cobalt-free, environmentally safer cell composition
Battery Management System and Protection
The KNYEE Energy battery features an advanced smart battery management system designed to protect and optimise battery operation. Protection features include:
- Over-charge and over-discharge protection
- Over-current and short-circuit protection
- Low-voltage and temperature protection
- Active cell balancing for longer lifespan
Charge and Discharge Performance
The KNYEE Energy 15.36kWh battery supports a full 1C charge and discharge rate, allowing high power delivery within a low-voltage system.
Charge Specifications
- Recommended charging current: 100A
- Maximum charging current: 200A
- Recommended charging voltage: 58V
- Maximum charging voltage: 58.4V
Discharge Specifications
- Recommended discharging current: 100A
- Maximum discharging current: 200A
- Recommended discharge cut-off voltage: 40V
- Battery cut-off voltage: 43.2V
- Battery recovery voltage: 48V
Scalability and Parallel Expansion
The KNYEE Energy KNY-P51300 battery is designed for large-scale low-voltage energy storage systems. Parallel capabilities include:
- Support for up to 15 batteries connected in parallel
- Retention of a 51.2V system voltage
- Scalable capacity for residential and commercial installations
Communication and System Integration
The battery communicates with compatible inverters and monitoring systems using:
- CAN communication
- RS485 communication
- RS232 communication
This enables inverter-controlled charging, discharging, and accurate state-of-charge reporting.
Technical Specifications – KNYEE Energy KNY-P51300 Battery
- Battery chemistry: LiFePO4
- Total energy capacity: 15.36kWh
- Nominal capacity: 300Ah
- Nominal voltage: 51.2V
- Cycle life: 6000 cycles at 80% depth of discharge
Physical Specifications and Installation
The KNYEE Energy battery is designed as a floor-standing unit suitable for utility rooms and plant areas.
- Installation type: Floor-standing
- Dimensions: 800 × 580 × 255 mm
- Net weight: 126 kg
- Gross weight: 146 kg
- Enclosure material: Sheet metal
- Ingress protection rating: IP20
Environmental Operating Limits
- Discharge temperature range: -20°C to 60°C
- Charge temperature range: 0°C to 55°C
- Operating temperature range: -20°C to 55°C
- Storage temperature range: -10°C to 35°C
Typical Applications for the KNYEE Energy Battery
- Residential solar energy storage systems
- Hybrid solar and backup power installations
- High-capacity household energy storage
- Scalable low-voltage battery banks
FAQ
Frequently Asked Questions
What inverter size is a good match for the KNYEE Energy 15.36kWh 300Ah battery?
A good match depends on how much continuous power you want to run and how hard you plan to push the battery daily. Because this is a 51.2V 300Ah battery with up to 200A charge and 200A discharge capability, it can comfortably support medium to larger low-voltage inverter systems when installed and configured correctly. In most residential setups, installers typically pair a battery of this size with 8kW to 16kW low-voltage inverters, and the final choice should be based on your expected continuous load, surge behaviour, and whether you plan to add more batteries later.
Why does discharge current matter more than kWh when choosing an inverter?
kWh tells you how long the battery can run loads, but discharge current limits how much power it can deliver at once. This battery is rated for up to 200A discharge, which is a strong current rating for a low-voltage system and is one of the key reasons it pairs well with higher-powered inverters compared to smaller 100Ah–200Ah batteries.
Can I run a 16kW low-voltage inverter on this battery?
Yes, a 16kW low-voltage inverter can be used with this battery in correctly designed systems, but real-world suitability depends on how often you intend to run near full output and what other high-surge loads you have. If you plan to regularly run high continuous loads, adding additional batteries in parallel increases available discharge current and reduces strain on each battery, which improves performance and longevity.
How many KNYEE Energy 15.36kWh batteries can be connected in parallel?
Up to fifteen batteries can be connected in parallel. Parallel expansion increases total energy capacity and increases the available charge and discharge current of the battery bank, which is useful for larger inverter systems and higher sustained loads.
Is this battery suitable for high daily usage homes?
Yes. A 15.36kWh capacity combined with a 300Ah rating makes it well suited to homes with higher daily consumption, larger essential-load circuits, or households that want longer backup runtime without running the battery to empty too quickly.
What charging settings should an installer pay attention to?
The key charging settings are the recommended charging voltage and current limits. This battery specifies a recommended charging voltage of 58V and a maximum charging voltage of 58.4V, with up to 200A maximum charging current. Correct charge limits help prevent nuisance trips, protect the battery, and keep performance consistent across seasons.
What is the operating voltage range and why does it matter?
The battery operates from 40V to 58.4V. This matters because inverter low-voltage cut-out settings and battery communication must be aligned so the system shuts down cleanly under low state-of-charge conditions and does not over-discharge the battery.
Which inverters work with the KNYEE Energy battery?
The KNYEE Energy battery works with Deye, Sunsynk, Luxpower, and Solis inverters when installed with the correct communication settings and compatible battery profiles.
Which communication methods does this battery support?
This battery supports CAN, RS485, and RS232 communication. Using the correct protocol helps the inverter read state of charge, control charge and discharge, and apply the correct protections.
Is this battery designed for daily cycling?
Yes. The battery is rated for 6000 cycles at 80% depth of discharge, making it suitable for daily cycling in solar self-consumption and backup power systems.
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