Knowledge Base › Battery Cabinets
Fortress Power FlexTower
Official manufacturer NA verified Sept. 25, 2026
Identity
| category | battery_cabinets |
| manufacturer | Fortress Power |
| model | FlexTower |
| product_status | active |
| region | NA |
| variant | — |
Electrical
| chemistry | LFP (LiFePO4) |
| communication |
['CAN', 'Modbus', 'RS485', 'WIFI']
DuraRack / FlexTower Data Sheet
|
| continuous_discharge_current_a | 100.0 |
| cooling |
air (fan cooling)
disputed
FlexTower All-in-One ESS Enclosure
|
| cycle_life | 6000 |
| depth_of_discharge_pct | 95.0 |
| dimensions_in |
[29.2, 83.78, 17.8]
DuraRack / FlexTower Data Sheet
|
| enclosure_weight_lb |
265
DuraRack / FlexTower Data Sheet
|
| max_charge_current_a | 80.0 |
| max_discharge_current_a | 100.0 |
| nominal_capacity_ah | 100.0 |
| nominal_energy_kwh | 40.0 |
| nominal_voltage_v | 400.0 |
| operating_voltage_max_v | 450.0 |
| operating_voltage_min_v | 350.0 |
| side_knockouts |
Left 2"(3), 1.5"(1), 1.25"(1), 1"(1) / Right 2"(3), 1.5"(1), 1"(1)
FlexTower All-in-One ESS Enclosure
|
| topology |
cabinet
FlexTower All-in-One ESS Enclosure
|
| usable_energy_kwh | 38.0 |
| warranty_years |
3
FlexTower All-in-One ESS Enclosure
|
Physical / mechanical
| depth_mm |
452
FlexTower All-in-One ESS Enclosure
|
| dimensions_mm |
[742, 2128, 452]
DuraRack / FlexTower Data Sheet
|
| enclosure_weight_kg |
120
DuraRack / FlexTower Data Sheet
|
| height_mm |
2128
FlexTower All-in-One ESS Enclosure
|
| mounting | 19-inch Rack / Wall-mount |
| weight_kg |
120
FlexTower All-in-One ESS Enclosure
|
| width_mm |
742
FlexTower All-in-One ESS Enclosure
|
Environment
| ip_rating |
IP54
FlexTower All-in-One ESS Enclosure
|
| operating_temperature_max_c |
45
FlexTower All-in-One ESS Enclosure
|
| operating_temperature_min_c |
0
FlexTower All-in-One ESS Enclosure
|
| operating_temperature_range |
32 F ~ 114 F (0 C ~ 45 C)
DuraRack / FlexTower Data Sheet
|
Interfaces & connectors
| communications |
['CAN', 'RS485', 'Wi-Fi']
FlexTower All-in-One ESS Enclosure
|
| documented_ports | [{'port_role': 'CAN', 'port_label_from_manual': 'CAN', 'port_type': 'CAN', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'document': 0, 'page': 'General Data FlexTower', 'quote': 'Communication CAN, Modbus, RS485, WIFI'}, {'port_role': 'RS485', 'port_label_from_manual': 'RS485', 'port_type': 'RS485', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'document': 0, 'page': 'General Data FlexTower', 'quote': 'Communication CAN, Modbus, RS485, WIFI'}, {'port_role': 'WIFI', 'port_label_from_manual': 'WIFI', 'port_type': 'WiFi', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'document': 0, 'page': 'General Data FlexTower', 'quote': 'Communication CAN, Modbus, RS485, WIFI'}] |
| protocols |
['Modbus']
FlexTower All-in-One ESS Enclosure
|
Certifications
| certifications |
UL 1741, UL 1973, UL 9540, UL 9540 (A)
FlexTower All-in-One ESS Enclosure
|
Documents
application_note
FlexRack Technical Note
certificate
FlexTower UL 9540 Certification
datasheet
DuraRack / FlexTower Data Sheet
installation_manual
DuraRack / FlexTower Installation Manual
product_page
FlexTower All-in-One ESS Enclosure
Recorded conflicts
electrical.cooling Review required
air (fan cooling) — stored value
Fan Cooling — Cooling Fan Cooling
Detected during import deep-enrich-2026-09-batch06
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| builder_completeness | partial |
| region_notes | US manufacturer; all published certification is North American (UL 1973 / UL 9540 / UL 9540A / CEC / SGIP / OGPe) and ANMA already stores Fortress Power under region NA. |