EV Accessories and Mounting
Pylontech Fidus PRO 5.12 Low Voltage IP65 Battery Module
The Pylontech Fidus PRO 5.12 is a low-voltage lithium iron phosphate (LFP) battery module developed for modern modular energy storage systems. With a usable capacity of 5.12 kWh, it serves as a scalable building block for residential, commercial, and industrial ESS installations.
Designed as a standalone battery module, the Fidus PRO 5.12 integrates into rack-based or cabinet-based storage systems and is suitable for use in hybrid PV, off-grid, backup, and self-consumption applications where flexibility and long service life are required.
Battery Technology and Safety
Lithium Iron Phosphate (LiFePO₄) Chemistry
The Pylontech Fidus PRO 5.12 uses LiFePO₄ (LFP) battery cells, selected for their thermal stability, chemical safety, and long cycle life. This chemistry is widely used in stationary energy storage due to its resistance to thermal runaway and stable voltage behaviour.
Key advantages of the Pylontech Fidus 5.12 kWh battery:
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High intrinsic safety
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Long service life under daily cycling
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Stable performance across wide operating conditions
Low Voltage System Architecture
The Pylontech Fidus PRO is a 48 V Low Voltage Battery Module
Operating in a low-voltage (LV) architecture, the Fidus PRO 5.12 is suitable for a wide range of inverter and ESS platforms that require 48 V battery input. This makes it a flexible choice for both grid-connected and off-grid systems.
Low-voltage design benefits include:
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Broad inverter compatibility
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Simplified system architecture
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Easier expansion and maintenance
The Pylon Fidus has a Modular and Scalable Design
Expandable Storage Capacity
The Pylontech Fidus PRO 5.12 kWh is designed for modular scaling. Multiple battery modules can be connected in parallel to increase total system capacity according to project requirements and inverter limits.
This allows installers to:
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Size storage precisely for each project
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Expand systems later as energy demand increases
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Standardise on one battery module across multiple installations
Integrated Battery Management System
Cell Monitoring and Protection
Each Pylontech Fidus PRO 5.12 kWh module includes an integrated battery management system (BMS) that monitors voltage, current, temperature, and state of charge. The BMS provides essential protection functions, including:
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Over-voltage and under-voltage protection
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Over-current protection
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Short-circuit protection
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Thermal protection
This ensures safe operation and long-term reliability within modular ESS installations.
Installation and System Integration of the 5.12 kWh
Installer-Friendly Format
The battery module is designed for rack or cabinet installation, enabling clean system layouts in technical rooms, containers, or energy storage cabinets. Its standardized form factor supports efficient transport, handling, and installation.
Application Flexibility
Typical use cases include:
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Modular residential ESS
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Commercial and industrial battery systems
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Off-grid and hybrid PV installations
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Backup and UPS-style energy storage
Operational Reliability
The Pylontech Fidus PRO 5.12 is engineered for long-term stationary operation with consistent performance over thousands of charge and discharge cycles. This makes it suitable for projects where reliability, predictable behaviour, and lifecycle cost are critical decision factors.
For Installers and EPCs
The Pylontech Fidus PRO 5.12 Low Voltage Battery Module is a robust and scalable LFP storage building block for modular energy storage systems. Its low-voltage design, integrated BMS, and modular expandability make it a flexible choice for a wide range of ESS architectures.
For installers and EPCs, it offers:
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Proven LFP safety
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Modular scalability
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Broad system integration potential
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Reduced system complexity
Key Features
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5.12 kWh low-voltage battery module
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Lithium iron phosphate (LiFePO₄) chemistry
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Integrated battery management system (BMS)
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48 V system architecture
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Modular and expandable design
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Suitable for rack and cabinet installations
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Designed for stationary energy storage systems
Product Datasheet and Downloads
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Datasheet Pylontech Fidus Pro 5.2 EN
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Datenblatt Pylontech Fidus Pro 5.2 DE
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Inverter Compatibility List for Pylontech LV Batteries
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CE Declaration of conformity
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Pylon Fidus Pro ROHS and REACH Certificate
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Pylon Fidus Pro WEEE Certificate
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Pylontech Fidus IEC61000 Certificate
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Pylontech Fidus EMC Certificate
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Pylon Fidus IEC60529 Vibration Test Report
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Pylontech WIFI Stick CN252MSV Test Report
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Pylontech Fidus IEC 62619 and 63056 Certificate
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Manufacturer Warranty Pylontech Fidus Pro Series
FAQ about Pylontech Fidus 5.2 LV Battery
It is a low-voltage lithium battery module used as a building block in modular energy storage systems for residential, commercial, and off-grid applications.
The module operates as part of a battery system and requires a compatible inverter or ESS controller. It does not function independently without system integration.
Multiple Fidus PRO 5.12 modules can be connected in parallel to increase total storage capacity, subject to inverter and system limits.
It uses lithium iron phosphate (LiFePO₄) cells, offering high safety, long cycle life, and stable performance for stationary energy storage.
For the Pylontech Fidus low-voltage (48V) battery family (Fidus-L / “Fidus 5.2 LV”), the official Pylontech compatibility list (Ver. 2.40, last update 2025-08-15) shows compatibility with the following inverter platforms (always confirm exact model + firmware before commissioning).
Compatible inverter brands and model families (as listed by Pylontech)
“Core” EU installer ecosystems (most requested)
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Victron Energy: MultiPlus 48V / Quattro 48V (via Venus OS, CAN)
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SMA: Sunny Island SI 4.4-M / SI 6.0-H / SI 8.0-H / SI 6048US (CAN)
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GoodWe: GW-BP/SBP, GW-ES/ES-C10, EM (CAN)
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Sofar: ME3000SP, HYD series (RS485/CAN)
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Solis: RHI/RAI, S5/S6 EA, S5/S6 EH (LV), plus S6-EH2P (9.6–16)K (CAN, some PV-only use cases noted)
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Deye (Sunsynk): SUN-SG01LP1 / SUN-SG03LP1 / SUN-SG04LP1 / SUN-SG04LP3 (CAN)
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Growatt: SPH 3000–6000, SPF 2000–5000 (HVM-48/LVM-48P), SPF 5000/6000 ES (PLUS), SPF 12000T DVM-US, M2000H/3000H/5000H-48 (CAN/RS485 depending model)
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Lux Power: LXP 3–6K Hybrid, ACS, SNA, LXP-LB EU/US series (CAN)
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Sungrow: SH5K (CAN)
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Hoymiles: HYS-LV series (CAN)
Off-grid / hybrid specialist platforms (also on the list)
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Schneider Electric: Conext XW Pro series (CAN)
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Studer Innotec: Xtender 48V / VarioString / VarioTrack (CAN)
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Voltronic: Infinisolar 48V, Axpert 48V (RS485)
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Sol-Ark: multiple 48V platforms (5K/8K/12K etc.) (CAN)
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Plus additional brands shown in the same official list (Afore, SAJ, Ingeteam, Delios, Megarevo, Sorotec, Livoltek, etc.).
Important installer notes from Pylontech (don’t skip these)
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Victron (Multi/Quattro via Venus): in off-grid mode, Pylontech notes you may need a Victron MPPT or other compatible PV inverter with Victron to avoid shutdown.
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Growatt SPF / M series: set battery DoD to 80% or lower, otherwise the system may shut down and require manual recharge.
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SMA Sunny Island SI: follow SMA minimum configuration guidance; also Force-L1/L2 isn’t compatible with SMA SI (relevant if you’re mixing battery families).
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