Ultra-fast charging for depots and commercial fleets — no trenching, no utility upgrade, no 12-to-18-month wait. The 400squared™ stores energy on site and delivers it the moment your vehicles need it.
DC Output Voltage
Connector Types
High-utilization fleets can’t wait on grid capacity that isn’t there. The 400squared™ runs on as little as ~ 30 kW and still delivers up to 400 kW.
High-utilization fleets get the turnaround they schedule around, at yards and remote sites that could never host fast charging before.
by the numbers
Total Available Energy Storage Capacity
Peak Maximum Continuous Output Power
Grid Connection Required
Installation Time
What that means for your operation:
Built for consistent output, session after session. Validated in the field with limited grid access and demanding duty cycles.
Port uptime
>99%
Installation time
Average energy delivered per session
38 kWh
Charge in 10 minutes
Up to 50%
Validated at Hyundai’s California Proving Ground and by MotorTrend.
Fast charging is what the battery enables. Lower energy costs are what it does the rest of the time. Stargazer™® buys power when it’s cheapest, holds it through demand-charge windows, and releases it when your vehicles plug in – so throughput goes up while cost per kWh goes down.
New revenue stream – export stored energy during peak events.
Charge cheap, use any time – energy in off-peak, out when vehicles plug in.
Lower bills site-wide – the battery shaves the building’s peak, not just the chargers’.
Backup power on site – keep the depot running through an outage.
You set the priority – vehicles, building, or grid, chosen in Reef™® Platform.
Every unit runs on the same software stack: Stargazer™® decides when energy moves, Reef™ shows you everything that happens.
Stargazer™®
AI energy optimization
Stargazer learns how your fleet actually charges — which vehicles plug in when, and how much energy each shift really needs — and schedules around it. The savings, the backup reserve, and the export decisions all come from this engine running in the background.
Reef™® Platform
Remote monitoring & operations
Comprehensive monitoring and diagnostics platform providing real-time insights and predictive maintenance capabilities.
Fleet Operations
High-throughput charging for commercial vehicle fleets with minimal downtime.
Critical Infrastructure
Backup power and charging for essential services and emergency operations.
Bring ultra-fast charging to sites without worrying about the grid.
Talk to our team to get started.