Pylontech Fidus 5.12kWh 51.2V Lithium Battery Overview

The Pylontech Fidus 5.12kWh 51.2V Lithium Battery is designed for energy storage in solar and backup-power systems. It provides 5.12kWh nominal battery capacity, with 4.97kWh usable capacity and a 97% depth of discharge, allowing a large portion of the stored energy to be used.

The battery operates at a 51.2V nominal voltage and supports 100A charge and discharge current. Its peak current capability reaches 121–200A for 15 seconds, providing additional short-duration power capability where the connected system requires it.

The Fidus battery also provides RS485 and CAN communication for system integration. Its flexible installation design supports wall, ground, and rack mounting, making it suitable for different battery-room and solar-system layouts.

Key Features and Buyer Benefits

5.12kWh Energy Capacity

The battery provides 5.12kWh nominal capacity and 4.97kWh usable capacity. This gives a practical energy-storage option for solar backup and energy-management systems.

97% Depth of Discharge

The battery enables the majority of the energy it contains to be used since it maintains the specified battery operating limits and has a DoD of 97%.

100A Charge and Discharge Capability

The battery can handle a normal and maximum charge and discharge current of 100A. This factor is significant when pairing the battery with an inverter and when deciding on the appropriate system load and charging setup.

High Short-Duration Peak Current

The battery is capable of delivering a peak current of 121 to 200 amperes for a period of 15 seconds. It can be useful for meeting short-term power requirements within the limits of the entire solar-storage system.

RS485 and CAN Communication

Built-in RS485/CAN communication allows the battery to communicate with compatible energy-storage equipment. Proper communication compatibility should be confirmed before installation.

Flexible Installation

The Fidus battery supports wall, ground, and rack-mounted installation. This gives installers more flexibility when planning the battery location and system layout.

High Cycle Life

The battery has a specified cycle life of more than 6,000 cycles at 25°C. Its stated design life is 10 years at 25°C. Actual service life depends on operating conditions, temperature, charging, discharging and system configuration.

Corrosion Resistance

The battery has a C5-M rating for anti-corrosion, which gives it a certain degree of protection against corrosion for appropriate installation environments.

Best For

The Lithium Battery, the Pylontech Fidus 5.12kWh 51.2V model, is suitable for:

• Residential solar energy storage
• Home backup systems
• Hybrid solar systems
• The solar systems that call for a 51.2V battery
• Installations requiring RS485/CAN communication
• Systems where wall, ground, or rack mounting is preferred
• Energy-storage systems that require expandable battery capacity

The Fidus range can be scaled from 5kWh to 600kWh by using between 1 and 120 modules, but the specific way in which it is expanded must comply with the compatible system design and installation requirements.

Not Ideal For

This battery should not be selected without further compatibility checking when:

• The inverter does not need a battery voltage system of 51.2V.
• The inverter does not support the required RS485/CAN communication
• The required battery current exceeds the specified limits
• The installation environment is unsuitable for the battery’s specified operating conditions
• The system requires a different battery capacity or configuration

Prior to installing it, make sure that the battery’s voltage, current limits, communication protocol and system configuration match those of the inverter you have selected.

Battery Capacity: kWh, Ah and Usable Energy Explained

The capacity of a battery can be expressed in terms of kWh, Ah, and usable energy, but these figures refer to different aspects of battery storage.

The Fidus battery has a 51.2V nominal voltage and 5.12kWh battery module capacity, with 4.97kWh usable capacity.

The relationship between voltage, ampere-hours and nominal energy can be expressed as:

Voltage × Ah ÷ 1000 = nominal kWh

When it comes to this product, the energy value as stated by the manufacturer is still the main specification for system planning.

The amount of energy that is actually available to the connected loads can depend on the inverter’s efficiency, the conditions under which the battery is operating, temperature, the age of the battery, and the way in which the load behaves.

Battery Performance and Cycle Life

The Fidus battery provides a 97% depth of discharge and more than 6,000 cycles at 25°C. The stated design life is 10 years at 25°C.

It is important to take temperature into account; the specified temperature range for charging and discharging is from -10°C to 55°C, and that for storage is from -20°C to 60°C. Performance and degradation may both be influenced by higher temperatures, which is why proper installation and ventilation are important.

Charging and Discharging Performance

The battery supports:

• Normal charge current: 100A
• Maximum charge current: 100A
• Normal discharge current: 100A
• Maximum discharge current: 100A
• Peak charge/discharge current: 121–200A @ 15 seconds

When selecting the correct operating current, you must take into account the inverter being used, the battery configuration and the full system design.

Inverter Compatibility

The Fidus battery provides RS485/CAN communication and is designed for integration with compatible energy-storage systems. The product range is compatible with 50+ popular inverter brands, but compatibility with a specific inverter should still be confirmed before purchase and installation.

Hajvery Solar Energy is an Pylontech Official Distributor, helping customers with product selection and system compatibility checks.

When fitting inverter systems, it is necessary to check the battery voltage that the inverter requires, the charge and discharge current, the communication protocol, and the battery configuration that is supported.

Parallel Expansion

The Fidus range has the ability to scale considerably, the product family being designed for use with configurations ranging from 5kWh to 600kWh using between 1 and 120 modules. The datasheet also gives a maximum single-string number of 20 and a multi-group figure of 6.

The precise number of modules and the system configuration must be determined by referring to the inverter that is compatible and the installation design.

Technical Specifications

Lithium Battery Use in Pakistan

For Pakistani solar installations, battery selection should consider load requirements, inverter compatibility, battery voltage, communication and installation temperature.

The temperature range specified for the Fidus battery when it is being charged or discharged is from -10°C to 55°C, and it is especially important to ensure proper ventilation and installation conditions during times of high ambient temperature.

In places where load shedding occurs, a battery of the correct size can be used to store solar energy for later use. The real length of the backup period will depend on the usable energy stored in the battery, the efficiency of the inverter and the load that is connected.

Pylontech Fidus 5.12kWh Price in Pakistan

The current price of the Pylontech Fidus 5.12kWh 51.2V Lithium Battery in Pakistan is Rs. 245,000.00 per unit.

Prices may differ depending on market conditions, the quantity required, and availability. For up-to-date information on availability and for inquiries relating to quantity, dealers, installers and bulk buyers can get in touch with Hajvery Solar Energy.

As an Official Pylontech Distributor, Hajvery Solar Energy can assist buyers with product selection and compatibility requirements.

Hajvery Compatibility and Authenticity Check

Before purchasing the Pylontech Fidus 5.12kWh 51.2V Lithium Battery, confirm the exact FB-L-5.12-PK model, battery voltage, required capacity and inverter communication compatibility.

Hajvery Solar Energy can help buyers check the appropriate battery configuration and compatibility requirements before installation.

Buying through Hajvery Solar Energy, an authorized Pylontech dealer, provides a direct route for product and warranty guidance.

Warranty

The Pylontech Fidus 5.12kWh 51.2V Lithium Battery comes with a 10-year warranty.

Before You Buy

Check these points before ordering:

• Battery voltage: 51.2V
• Required energy capacity: 5.12kWh nominal
• Usable capacity: 4.97kWh
• Inverter compatibility: Confirm voltage and communication requirements
• Communication: RS485/CAN
• Charge/discharge current: Confirm system requirements
• Installation: Wall, ground or rack mounting
• Installation environment: Confirm temperature and humidity conditions
• Expansion: Confirm required number of battery modules
• Warranty: 10-year warranty

FAQs

What is the capacity of the Pylontech Fidus battery?

The Pylontech Fidus FB-L-5.12-PK has a 5.12kWh battery capacity and 4.97kWh usable capacity.

What is the voltage of the Pylontech Fidus battery?

The battery has a 51.2V nominal voltage.

What is the DoD of the Pylontech Fidus battery?

The battery has a specified 97% depth of discharge.

What communication ports does it have?

The battery supports RS485 and CAN communication.

How many cycles does the Pylontech Fidus battery provide?

The specified cycle life is more than 6,000 cycles at 25°C.

Can the Pylontech Fidus battery be wall mounted?

Yes. The battery supports wall, ground and rack-mounted installation.

What is the current price of the Pylontech Fidus battery in Pakistan?

The current price is Rs. 245,000.00 per unit.

What warranty does the Pylontech Fidus battery have?

The battery comes with a 10-year warranty.

Buy Pylontech Fidus 5.12kWh 51.2V Lithium Battery from Hajvery Solar

The Pylontech Fidus 5.12kWh 51.2V Lithium Battery is a practical energy-storage option for solar and backup applications requiring a 51.2V battery architecture. With 4.97kWh usable capacity, 97% DoD, RS485/CAN communication, more than 6,000 cycles and flexible mounting options, it can be integrated into suitable residential and energy-storage systems.

Hajvery Solar Energy provides Pylontech products with compatibility guidance and warranty support for customers in Pakistan.