418 kWh 400 kW Mobile BESS Mobile EV Charging

Features

Deploy 418 kWh of mobile energy storage with 400 kW dual-connector DC charging for EV fleets, heavy equipment, jobsites, and temporary power.

Specifications and Parameters

418 kWh 400 kW Mobile BESS Mobile EV Charging

Cell Type 314Ah	Rated Cell Capacity 1004.8Wh	Battery Cluster Configuration 2P208S	Battery Voltage Range 582.4-759.2Vdc
Battery Capacity 418kWh	DC Operating Voltage Range 615-950Vdc	DC Maximum Current 404A	AC Rated Voltage 230/400V
AC Rated Power 250kW	AC Rated Grid Frequency 50/60Hz	Rated Output Power 400kW	Charging Guns 2 Guns (200 kW/gun)
Output Voltage Range 200-1000Vdc	Output Current Range 2-250A	Charging Temperature Range 0-50°C	Discharging Temperature Range -10-50°C
Cooling Method Liquid cooling for battery compartment + Air cooling for electrical compartment	Relative Humidity ≤95%RH, no condensation	Operating Altitude ≤3000m (Derate when altitude exceeds 3000m)	Ingress Protection (IP) Rating IP54
Anti-corrosion Grade C4	Enclosure Material Precision Sheet Metal	Cell Cycle Life ≥6000 times	Fire Protection System Aerosol
Equipment Weight ≈5.2T	Dimensions(WxDxH) 320517402117 (mm)

418 kWh / 400 kW Mobile BESS for Mobile EV Charging and Temporary Power

Blue 418 kWh 400 kW mobile BESS trailer providing high-power mobile charging for an electric heavy-duty vehicle.

Deploy high-power DC charging where fixed infrastructure is unavailable, grid capacity is constrained, or operations need temporary energy support. Ruisu's trailer-mounted 418 kWh / 400 kW Mobile BESS combines energy storage, power conversion, and dual-connector DC charging in one transportable platform.

The system integrates 418 kWh of battery capacity, a 250 kW power conversion system (PCS), and a 400 kW rated charging system with two 200 kW connectors. Its wide 200-1,000 VDC charging range supports a broad range of electric vehicles and equipment, subject to vehicle compatibility and project configuration.

Product Highlights

418 kWh rated battery capacity
400 kW rated DC charging system output
Two DC charging connectors rated at 200 kW each
200-1,000 VDC charging output range
250 kW rated AC power through the integrated PCS
Liquid-cooled battery compartment and air-cooled electrical compartment
IP54 ingress protection and C4 corrosion protection grade
Trailer-mounted format for deployment between operating sites

Actual charging power and operating time depend on vehicle charging limits, battery state of charge, ambient conditions, site power sources, simultaneous load demand, and the selected energy management strategy.

Key Benefits of the 418 kWh / 400 kW Mobile BESS

Original-color blue mobile BESS with labeled product features including dual charging connectors, liquid cooling, integrated power conversion, and outdoor protection.

418 kWh of Mobile Energy Storage

Store energy at a convenient source and move it closer to vehicles, machines, or temporary loads. The mobile format helps operators extend charging coverage without waiting for permanent charging infrastructure at every location.

400 kW Dual-Connector DC Charging

The charging system provides two connectors rated at 200 kW each, allowing two compatible vehicles or machines to connect. The 200-1,000 VDC output range supports varied fleet and equipment platforms.

Integrated 250 kW PCS

The integrated PCS is rated at 250 kW AC power with 230/400 V output and 50/60 Hz grid frequency support. This enables the platform to participate in project designs that require AC energy conversion as well as DC charging.

Purpose-Built Thermal Management

Liquid cooling helps manage battery-compartment temperature, while the electrical compartment uses air cooling. Independent thermal management supports stable operation across changing load and ambient conditions.

Outdoor Protection for Demanding Sites

An IP54 enclosure helps protect internal equipment from limited dust ingress and water spray. The C4 corrosion protection grade supports deployment in industrial and outdoor environments when installation and maintenance requirements are followed.

Long-Life Cell Design

The specified cell cycle life is at least 6,000 cycles. Actual service life varies with depth of discharge, charge and discharge rates, temperature, operating strategy, and maintenance.

Integrated Safety Features

The system includes aerosol fire protection and a precision sheet-metal enclosure. Final site safety planning should address clearances, access control, grounding, emergency procedures, and applicable local codes.

Flexible Energy Inputs and Power Delivery

System topology for a 418 kWh 400 kW mobile BESS showing utility, solar PV, and generator sources connected to energy storage, DC charging, and AC loads.

The mobile BESS can be engineered into site energy architectures that coordinate available generation, storage, charging, and load requirements. Depending on final system engineering and optional interfaces, a project may use utility power, solar PV, or a generator as an energy source while the battery system supports DC vehicle charging and AC loads.

This flexible architecture can help operators manage limited grid capacity, bring charging closer to work areas, and use available energy sources more effectively. Input interfaces, operating modes, controls, and source-switching logic must be confirmed for each project before ordering.

Utility-Supported Charging

Charge the battery system where utility capacity is available, then deploy the unit to the point of use. In suitable project configurations, the system can also coordinate stored energy with an available grid connection.

Solar PV Integration

For renewable-energy projects, the mobile BESS can be incorporated into an engineered PV-plus-storage architecture. The final PV interface, conversion equipment, controls, and charging schedule depend on the project design.

Generator-Assisted Operations

Where utility service is unavailable, a properly engineered generator-assisted configuration can support energy replenishment and temporary site operations. Generator sizing, power quality, controls, and operating sequence must match the application.

DC Charging and AC Loads

The platform combines a 400 kW rated DC charging system with a 250 kW rated PCS. This allows project designers to address high-power vehicle charging and compatible AC load requirements within one mobile energy platform.

Mobile BESS Application Scenarios

Nine real-world mobile BESS applications including EV charging, bus charging, construction equipment, industrial temporary power, oil and gas fields, and solar PV integration.

Mobile EV Charging

Bring DC charging to fleet yards, depots, events, roadside service operations, temporary parking areas, or locations awaiting permanent charging infrastructure.

Long-Distance Bus Charging

Support route trials, temporary terminals, maintenance facilities, and scheduled charging events for compatible electric buses.

Concrete Mixer Truck Charging

Provide mobile charging support for electric concrete mixer trucks at plants, staging areas, and construction projects where fixed charging coverage is limited.

Electric Excavator Charging

Move stored energy closer to electric excavators working across changing jobsite zones, helping reduce travel to a fixed charging point.

Electric Log Loader Charging

Serve compatible electric log loaders in forestry and material-handling operations where equipment works far from permanent electrical infrastructure.

Construction Sites

Combine mobile vehicle charging with temporary AC power support for construction operations, subject to site load studies and final configuration.

Industrial Park Temporary Power

Support planned maintenance, equipment commissioning, peak-demand management, or temporary power needs within industrial facilities.

Oil and Gas Field Operations

Deploy transportable stored energy for compatible charging and temporary power applications in remote field operations, following site-specific safety and hazardous-area requirements.

PV Integration

Use the mobile BESS within an engineered solar-plus-storage solution to shift renewable energy to later charging or load periods.

Technical Specifications

The following values are based on the current 418 kWh / 400 kW product sheet. Final specifications are subject to the confirmed project configuration and technical agreement.

Category	Specification	Value
System	Model	418 kWh / 400 kW
Battery	Cell type	314 Ah
Battery	Rated cell capacity	1,004.8 Wh
Battery	Battery cluster configuration	2P208S
Battery	Battery voltage range	582.4-759.2 VDC
Battery	Battery capacity	418 kWh
Battery	Cell cycle life	>=6,000 cycles
PCS	DC operating voltage range	615-950 VDC
PCS	Maximum DC current	404 A
PCS	Rated AC voltage	230/400 V
PCS	Rated AC power	250 kW
PCS	Maximum AC current	396 A
PCS	Rated grid frequency	50/60 Hz
DC Charging	Rated system output power	400 kW
DC Charging	Charging connectors	2 connectors, 200 kW each
DC Charging	Output voltage range	200-1,000 VDC
DC Charging	Output current range	2-250 A
Environment	Charging temperature	32-122°F (0-50°C)
Environment	Discharging temperature	14-122°F (-10-50°C)
Environment	Relative humidity	<=95%, non-condensing
Environment	Operating altitude	<=9,843 ft (3,000 m); derating above
Protection	Ingress protection	IP54
Protection	Corrosion protection grade	C4
Thermal Management	Battery compartment	Liquid cooling
Thermal Management	Electrical compartment	Air cooling
Fire Protection	Fire suppression	Aerosol fire protection
Mechanical	Enclosure	Precision sheet metal
Mechanical	Dimensions (L x W x H)	126.2 x 68.5 x 83.3 in (3,205 x 1,740 x 2,117 mm)
Mechanical	Approximate weight	11,464 lb (5.2 metric tons)

Frequently Asked Questions

What is a 418 kWh / 400 kW Mobile BESS?

It is a trailer-mounted battery energy storage and charging system that combines a 418 kWh battery, a 250 kW PCS, and a 400 kW rated DC charging system. It is designed to bring energy and charging capacity closer to vehicles, equipment, and temporary loads.

How many vehicles can it charge at the same time?

The system has two DC charging connectors rated at 200 kW each. Two compatible vehicles or machines can connect, while actual power at each connector depends on vehicle acceptance, battery state of charge, temperature, simultaneous operation, and the configured control strategy.

What DC charging voltage range does it support?

The specified output range is 200-1,000 VDC, with an output current range of 2-250 A. Vehicle voltage, communication protocol, connector standard, and charging curve must be confirmed for the target fleet.

Can the mobile BESS supply AC loads?

The integrated PCS is rated at 250 kW AC power, with 230/400 V rated AC voltage and 50/60 Hz rated grid frequency. The final AC interface and operating mode depend on project engineering.

How is the system cooled?

The battery compartment uses liquid cooling, and the electrical compartment uses air cooling. This division provides dedicated thermal management for the principal system areas.

Is the system suitable for outdoor jobsites?

The enclosure is rated IP54 and has a C4 corrosion protection grade. Suitability for a specific site also depends on temperature, altitude, humidity, dust, water exposure, ventilation, access, local codes, and maintenance conditions.

What are the operating temperature limits?

The specified charging temperature is 32-122°F (0-50°C), and the specified discharging temperature is 14-122°F (-10-50°C). Project derating or operating restrictions may apply under specific site conditions.

What information is needed for system selection?

Provide the vehicle or equipment type, connector and communication standard, battery voltage, maximum charge acceptance, daily energy demand, duty cycle, site power sources, AC load requirements, ambient conditions, mobility requirements, and target operating hours.

Request a Mobile Charging and Energy Storage Solution

Tell us about your vehicles, charging voltage, connector standard, daily energy demand, duty cycle, site power conditions, deployment environment, and required operating hours. Ruisu can help evaluate whether the 418 kWh / 400 kW Mobile BESS is a suitable platform for your project.

Request a Quote

Discuss Your Application

ruisu@gzruisu.com