Pylontech Fidus Battery Plus 16.076kWh 51.2V LiFePO4 Lithium Battery

The Pylontech Fidus Battery Plus is a high-capacity 51.2V LiFePO4 energy-storage battery offering 16.076kWh nominal and usable capacity with 100% depth of discharge. Its integrated display, Bluetooth and Wi-Fi connectivity make system monitoring simple, while CAN and RS485 communication support compatible hybrid solar inverters. The freestanding cabinet design with caster wheels is suitable for residential and light-commercial solar backup systems.

Key Selling Points

• 16.076kWh nominal and usable energy capacity
• Safe and durable LiFePO4 battery chemistry
• 51.2V low-voltage battery platform
• 100% depth of discharge
• Up to 200A continuous charge and discharge on standard FB-L-16
• 300A peak discharge current for 15 seconds
• Integrated display screen
• Bluetooth and Wi-Fi monitoring
• CAN and RS485 inverter communication
• Up to 20 batteries per group
• Up to 6 parallel groups using LV-HUB-V2
• 15-year design life
• 8,000-cycle design rating
• Optional self-heating on FB-L-16-Pro
• Optional aerosol fire-suppression system

Technical Specifications

Long Product Description

The Pylontech Fidus Battery Plus 16.076kWh is a low-voltage lithium energy-storage solution designed for compatible residential and light-commercial hybrid solar systems. It uses LiFePO4 chemistry for enhanced thermal stability, long service life and dependable daily cycling.

With 16.076kWh nominal and usable energy at 51.2V, the battery supports a 100% depth of discharge. The standard FB-L-16 version delivers up to 200A continuous charge and discharge current, while its 300A short-duration peak rating supports temporary high-load demand.

An integrated screen provides convenient local status information. Bluetooth and Wi-Fi connectivity enable smart monitoring, while CAN and RS485 communication allow integration with supported hybrid inverters. For larger installations, up to 20 batteries can be connected in a group, with multiple groups supported through the appropriate Pylontech LV-HUB-V2 controller.

The cabinet measures 435 × 240 × 900mm and weighs approximately 130kg. Caster wheels make positioning easier, but the unit must still be installed and secured according to the manufacturer's instructions by a qualified technician.

Compatibility Note

This is a 51.2V low-voltage battery. Confirm the inverter's supported battery-voltage range, Pylontech CAN/RS485 communication protocol, approved battery list, firmware version and cable pinout before purchase or installation. Do not connect batteries of different voltage, chemistry, model, age or state of charge unless Pylontech documentation explicitly permits it.

Package Contents

• 1 × Pylontech Fidus Battery Plus unit
• Communication and power accessories as supplied by the authorized distributor
• User documentation / quick-start guide as supplied

Exact cables, breakers, connectors, hubs and accessories may vary by distributor and package. Confirm the box contents before publishing.

Installation & Safety Notes

• Installation must be carried out by a qualified solar or electrical technician.
• Use correctly rated DC protection, cables, connectors and isolation equipment.
• Follow the compatible inverter and Pylontech installation manuals.
• Keep the unit within the specified temperature, humidity and ventilation limits.
• Verify whether the supplied unit is FB-L-16, FB-L-16-Pro or FB-L-16-PK before choosing indoor/outdoor installation.
• Do not publish IP65 for an FB-L-16-PK unit; its Pakistan datasheet specifies IP20.