Description
Low-current 1500 V transmission with active liquid thermal regulation.
Pylontech OPTIM US L417-BAT is an ultra-high-density 417.0 kWh liquid-cooled commercial outdoor battery container operating on a 1500 V DC bus architecture (1123–1497 V), engineered to feed central 1000 kW to 2500 kW utility PCS stations for multi-megawatt-hour energy storage projects.
417.0 kWh Ultra-High Energy Density
Packs 417 kWh into a compact 1.3 m × 1.3 m outdoor pad footprint (3.67 tons), minimizing foundation civil costs.
1500 V High-Voltage DC Bus Architecture
Operates across 1123 V to 1497 V DC, delivering maximum electrical transmission efficiency on utility PCS stations.
Industrial Closed-Loop Liquid Cooling
Precision liquid thermal distribution maintains cell temperature uniformity within ≤2.5 °C for extended battery cycle life (>8,500 cycles).
Multi-Cabinet Parallel Scalability (Up to 12 Units)
Connect up to 12 containers in parallel to build 5.0+ MWh utility storage blocks on a single central inverter.
More product details
Sizing multi-megawatt-hour utility solar farms requires 1500 V DC bus architectures to minimize cable losses and copper costs. The L417-BAT operates across an 1123–1497 V DC window with direct liquid cold plates beneath every cell group.
- 1500 V series string architecture delivers maximum round-trip electrical efficiency (>95% @ 0.5C).
- Precision liquid coolant circulation keeps cell temperature variance strictly under 2.5 °C.
- Extends battery calendar life to over 8,500 cycles under continuous 0.5C charge and discharge.
Pylontech OPTIM US
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Heavy-duty utility enclosure with integrated aerosol and gas protection.
Built as a complete pad-mounted outdoor energy container, it integrates high-voltage motorized switchgear, master BMS diagnostics, and automated multi-sensor fire protection. Multi-sensor aerosol fire suppression, combustible gas detection, and deflagration pressure vents. Heavy-duty IP55 weather-sealed enclosure with C4/C5 anti-corrosion coating (-25 to +55 °C). Direct Modbus TCP and CAN communication interfaces for central SCADA and EMS dispatch.
Fits a 3.67 ton pad
This cabinet weighs 3.67 tons. The footprint is 1300 by 1300 mm at 2410 mm tall.
Takes an external 1000 to 2500 kW inverter
No PCS sits in this cabinet. The system inverter range is 1000 to 2500 kW.
Holds liquid cooling on a 3.5 kW loop
The liquid loop draws 3.5 kW. Auxiliary draw is 3.75 kW continuous and 5 kW peak.
Technical data
Megawatt-scale 1500 V energy storage engineered for central PCS units, utility solar farms, and grid frequency response.
417 kWh ultra-high-density liquid-cooled battery container for 1500 V utility storage.
Engineered for multi-megawatt-hour utility storage projects and central commercial PCS installations, the OPTIM US L417-BAT packs 417.0 kWh of liquid-cooled LFP storage into a high-density outdoor enclosure. Operating on a 1500 V DC bus architecture, it delivers maximum round-trip efficiency, 98% depth-of-discharge, and multi-cabinet parallel scalability up to 5+ MWh.
- Container Storage
- 417.0 kWh
- 1500 V DC Bus
- 1123–1497 V
- Cycle Longevity
- >8,500
- IP55 Enclosure
- Turnkey Pad
Identity
- Battery type
- Li-ion (LFP)
- Communication type
- Ethernet (Modbus TCP) / CAN
Battery
- Battery type
- Li-ion (LFP)
- Nominal capacity (kWh)
- 417
- Depth of discharge
- 98% (single string)
- Cycle life
- >8500
- DC voltage range (Vdc)
- 1123 - 1497 (single string)
- Maximum / continuous operation current (A)
- 200 / 157
- Round-trip efficiency at 0.5C
- >95%
- System C-rate
- 0.5C
- System DC voltage (Vdc)
- 1123 ~ 1497
Cabinet & Environment
- Dimensions W x D x H (mm), without inverter
- 1300 x 1300 x 2410
- Weight (tons)
- 3.67
- Working temperature range (C)
- -25 to 55
- Protection class
- IP55
- Altitude (m)
- <=4000
- Humidity
- 5% - 95%
- Fire extinguishing
- Aerosol
- Cooling system
- Liquid cooling
- Cooling system consumption (kW)
- 3.5
- Anti-corrosion
- C3 (C5 optional)
System Configuration
- Maximum parallel number
- 12
- System capacity range (kWh)
- 2085 ~ 5004
- External inverter range (kW)
- 1000 ~ 2500
- Communication type
- Ethernet (Modbus TCP) / CAN
- Operation logic
- Wide temperature range / ancillary service / electricity arbitrage / demand response / backup
Project fit
Where this model fits.
Scenarios that show which projects the Pylontech OPTIM US L417-BAT belongs in, what to verify before quoting, and when another model is the better pick.
Utility Solar Farms, Grid Frequency Response & Multi-MWh Projects (1 MW to 10 MW+)
Utility-scale ground mounts and industrial microgrids deploying central 1000 kW to 2500 kW PCS stations.
417 kWh single-container capacity and 1500 V DC bus minimize total container count, interconnect cabling, and civil pad costs.
- Confirm this model against the adjacent rating in the same family
Documents
Pylontech OPTIM US L417-BAT datasheet (EN) Pylontech OPTIM US L417-BAT DatasheetProduct questions
Does the L417-BAT include an internal inverter/PCS?
No. L417-BAT is a dedicated battery-only container designed to pair with external central PCS units. Unlike the "OMNI" and "HY" models that house internal power conversion stages, the L417-BAT is a dedicated high-capacity DC battery container. It connects directly to external central inverters (1000 kW to 2500 kW) across its 1123–1497 V DC terminals.
What are the physical dimensions and weight of the L417-BAT container?
1300 × 1300 × 2410 mm; approx. 3.67 tons (3,670 kg). The outdoor container measures 1,300 mm wide × 1,300 mm deep × 2,410 mm high and weighs approx. 3.67 metric tons (including batteries). It requires a reinforced concrete foundation pad with crane placement.