Description
Internal self-aligning busbars for fast, error-free assembly.
Pylontech FH48074 is a 3.55 kWh high-voltage LFP modular battery brick operating at 48 V nominal, engineered to expand Pylontech Force-H1 storage towers from 7.1 kWh up to 24.86 kWh with cable-free slide-and-lock busbar mating.
Cable-Free Slide-and-Lock Stacking
Internal self-aligning busbar terminals eliminate exposed high-voltage DC jumper cables and wiring errors during stacking.
3.55 kWh / 48 V Granular Sizing
Stacks 2 to 7 modules vertically (7.10 kWh to 24.86 kWh / 96 V to 336 V) to match specific hybrid inverter voltage windows.
40 A Continuous Throughput (95% DoD)
Rapidly absorbs solar surplus and discharges up to 15 kW continuous DC power into compatible inverters.
>8,000 Cycle Prismatic LFP Longevity
Built with 74 Ah prismatic lithium iron phosphate cells for superior thermal stability and 15+ year calendar life.
More product details
Traditional high-voltage batteries require complex external DC wiring, conduit bending, and communication patch leads. The FH48074 passes all electrical pathways internally through heavy-duty mating terminals.
- Self-aligning guide pins ensure perfect mechanical seating and electrical contact upon vertical placement.
- Eliminates exposed high-voltage DC wiring on garage and utility room walls, maximizing residential safety.
- Reduces on-site battery stack assembly time to under 15 minutes for a complete 5-module column.
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High thermal stability with integrated sub-BMS cell balancing.
Built with automotive-grade 74 Ah prismatic LFP cells in a 15S series configuration, each module features integrated sub-BMS electronics that report cell temperatures and voltages continuously to the top master controller. Cell-level thermal sensors and active balancing prevent localized degradation across thousands of daily cycles. High 95% depth-of-discharge provides 3.37 kWh of usable energy per brick. IP55 sealed enclosure protects power cells against humidity, dust, and coastal environments (0 to +50 °C).
Holds 95 percent depth of discharge
95 percent depth of discharge sits in the LFP cells. Parallel towers reach six groups.
Talks over CANBUS and Modbus RTU
The finished tower speaks CANBUS or Modbus RTU to the hybrid. The brick is the 48 V step.
Fits a 0 to 50 C working window
The working window on this brick is 0 to 50 C. The cells stay LFP.
Technical data
The fundamental building block for Pylontech Force-H1 high-voltage storage towers.
3.55 kWh / 48 V modular battery expansion brick with internal direct mating.
Serving as the modular storage brick for Pylontech Force-H1 systems, the FH48074 delivers 3.55 kWh of LFP capacity at 48 V nominal. Its self-aligning internal terminals eliminate exposed inter-module DC cabling, stacking vertically from 2 up to 7 modules (7.1 to 24.86 kWh) to match residential inverter DC operating windows.
- Modular Energy
- 3.55 kWh
- Modular Voltage
- 48.0 V
- Continuous Current
- 40 A
- External DC Conduits
- Zero
Identity
- Brand
- Pylontech
- Model
- FH48074
- Type
- Stack battery module, Force H1 system
- Cell technology
- Li-iron (LFP)
Electrical
- Module voltage (Vdc)
- 48
- Module capacity (Ah)
- 74
- Module energy (kWh)
- 3.55
- Charge / discharge current (A)
- 37 recommended, 40 maximum
- Communication
- CANBUS / Modbus RTU
- System voltage (V)
- 96 ~ 336
- System capacity (kWh)
- 7.1 / 10.65 / 14.21 / 17.76 / 21.31 / 24.86
Mechanical & Environment
- Working temperature (C)
- 0 ~ 50
System & Performance
- Depth of discharge
- 95%
- Modules per system
- 2 ~ 7
- System voltage (V)
- 96 ~ 336
- System capacity (kWh)
- 7.1 / 10.65 / 14.21 / 17.76 / 21.31 / 24.86
- Parallel systems
- Up to 6
- Cycle life
- >8000 at 25 C
Project fit
Where this model fits.
Scenarios that show which projects the Pylontech FH48074 belongs in, what to verify before quoting, and when another model is the better pick.
Modular Capacity Expansion on an Existing Pylontech Force-H1 Tower
Homeowners who initially installed a 7.1 kWh (2-module) or 10.6 kWh (3-module) Force-H1 tower and now wish to expand storage up to 24.86 kWh (up to 7 modules).
Order additional FH48074 bricks, place them directly onto the existing column, and re-anchor. The master controller auto-calibrates to the new capacity.
- Confirm this model against the adjacent rating in the same family
Documents
Pylontech Force-H Series datasheet (EN)Product questions
What is the maximum number of FH48074 modules that can be stacked in one Force-H1 tower?
Up to 7 modules per tower (24.86 kWh / 336 V DC). A single Force-H1 tower supports stacking from 2 up to 7 FH48074 modules (7.10 kWh to 24.86 kWh) beneath the master BMS controller (FC0500-40S).
What are the physical dimensions and weight of each module?
36.0 kg per module; 600 × 380 × 170 mm. Each brick weighs 36.0 kg (approx. 79 lbs) and measures 600 mm wide, 380 mm deep, and 170 mm high, designed for easy two-person handling in domestic corridors.
System components
Required components
Chint DTSU666 smart meter
Item number: DLK-CHINT-DTSU666
grid-side meter needed by most hybrid inverters to enforce export limits; independent of which inverter is paired with this tower.
Optional components
Pylontech FH48074 module
Item number: DLK-PYLONTECH-FH48074
add modules (2-7 per controller, up to 6 parallel strings) to grow capacity within the same tower architecture.