Description
Engineered for ultimate operational resilience, the Pylontech Fidus 5.12kWh Lithium Battery (FB-L-5.12-PK) establishes a higher standard for stationary energy storage systems. Featuring a nominal voltage of 51.2V and a full 5.12kWh capacity, this unit provides a highly usable capacity of 4.97kWh thanks to its 97% Depth of Discharge. Commercial facilities and industrial complexes across major hubs like Lahore, Karachi, Islamabad, Faisalabad, Multan, and Rawalpindi can rely on its robust continuous 1C charge and discharge rate (100A) along with a peak output of 2C (121~200A for 15 seconds) to tackle heavy machinery starting loads effortlessly.
Flexibility sits at the core of the Pylontech Fidus design. The battery supports string configurations up to 20 units per single string and can scale across 6 multi-groups to reach massive capacities ranging from 5kWh to 600kWh (1 to 120 modules). This immense scalability makes it equally suited for growing business enterprises, backup power networks, and large-scale solar installations. Designed to integrate smoothly into modern microgrid architecture, it pairs flawlessly with hybrid inverters, backup diesel generators, EV chargers, and existing lithium battery banks.
Durability is guaranteed even under adverse conditions. With a top C5-M anti-corrosion rating and flexible installation methods (wall, ground, or rack mounting), it performs reliably in diverse environments. Operating effectively across temperatures from -10°C to 55°C and altitudes up to 4,000 meters, the unit boasts over 6,000 cycles at 25°C and a 10-year design life. Integrating via RS485 and CAN ports with over 50 mainstream inverter brands, the Pylontech Fidus is a future-proof investment for modern energy independence.
11. FAQ Section
Q1: What is the capacity and usable energy of the Pylontech Fidus 5.12kWh battery? A: The battery features a total nominal capacity of 5.12 kWh and provides 4.97 kWh of usable capacity based on its 97% Depth of Discharge (DOD) rate.
Q2: How many cycle lives can I expect from this lithium battery? A: The Pylontech Fidus yields over 6,000 cycles at 25°C, providing a design lifespan exceeding 10 years under standard operating conditions.
Q3: Can this battery be expanded for larger commercial energy storage systems? A: Yes, it offers extraordinary scalability. You can connect up to 20 modules in a single string and combine up to 6 groups, allowing custom system expansion from 5kWh all the way up to 600kWh (120 modules total).
Q4: Is the Pylontech Fidus compatible with my existing inverter, generator, or EV setup? A: It is compatible with over 50 leading hybrid and off-grid inverter brands using standard CAN and RS485 communication protocols. It integrates easily into setups featuring backup diesel generators and EV charging infrastructure.
Q5: What charge and discharge currents does the battery support? A: It supports a continuous standard charge and discharge current of 100A (1C rate) and can handle a peak discharge of 121A to 200A for up to 15 seconds (2C rate).
Q6: What mounting options are available for installation? A: The unit features a versatile mechanical design that can be wall-mounted, ground-mounted, or rack-mounted depending on space requirements.
Q7: How does the battery handle hot weather conditions in Pakistan? A: The operating charge and discharge temperature ranges from -10°C to 55°C. Note that performance degradation naturally occurs when temperatures exceed 50°C.
Q8: What safety and international certifications does this battery hold? A: The FB-L-5.12-PK model holds extensive safety and environmental certifications, including IEC62619, UN38.3, CE, EMC, RoHS, Reach, WEEE, and IEC62040.
Q9: What is the physical weight and dimension of the module? A: The battery module measures 638 mm in width, 137 mm in depth, and 370 mm in height, with a total weight of 45 kg.
Technical Specifications Table
| Specification | Parameter / Value |
| Model Code |
FB-L-5.12-PK |
| Nominal Voltage |
51.2 VDC |
| Nominal Capacity |
5.12 kWh |
| Usable Capacity |
4.97 kWh |
| Depth of Discharge (DOD) |
97% |
| Charge / Discharge Current |
100A Normal / 100A Max Continuous (1C) |
| Peak Current |
121~200A @ 15 sec (2C) |
| Short Circuit Current / Duration |
<2000A / ms |
| Cycle Life |
>6,000 cycles @ 25°C |
| Design Life |
10+ years @ 25°C |
| Dimensions (W x D x H) |
638 x 137 x 370 mm |
| Weight |
45 kg |
| IP Rating |
IP20 |
| Anti-Corrosion Protection |
C5-M Level |
| Communication Ports |
RS485 / CAN |
| Multi-Group Capability |
Up to 6 groups (Max 20 pcs per single string / up to 120 modules) |
| Scalability Range |
5 kWh to 600 kWh |
| Operating Temperature |
-10°C to 55°C (Charge/Discharge, degradation >50°C) |
| Certifications |
IEC62619, UN38.3, RoHS, Reach, WEEE, EMC, CE, IEC62040 |









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