
Modular Skateboard Architecture for Final Mile Delivery
See the SpecsWhat makes this program significant.
Class 3 commercial vehicles require high energy density, fast charging, and a flat load floor. These constraints make battery architecture central to vehicle design.
Flat pack architecture integrates into the vehicle chassis, preserving cargo volume while distributing weight for handling stability.
POC in 12 weeks, MVP in 8 weeks. Development pace matched to a commercial program that couldn’t wait on traditional supplier lead times.
Hover over any specification to explore its performance envelope.
Usable energy for full-day final mile delivery routes
Peak bus voltage under full charge
Sustained output for loaded commercial driving
DC fast charge capability for fleet turnaround
System mass including enclosure and cooling, 94 kg under 700 kg ceiling
Gravimetric density optimized for commercial payload requirements
Every program requirement met or exceeded.
| SPECIFICATION | TARGET | MONOLITH™ DELIVERED | STATUS |
|---|---|---|---|
| Power Output | >180 kW | 350 kW peak | EXCEEDED |
| Usable Energy | >75 kWh | 82 kWh | EXCEEDED |
| System Weight | <700 kg | 566 kg | EXCEEDED |
| Voltage Range | 250–500V | 288–408V | MET |
| Temperature Range | −30 to +60°C | −30 to +60°C | MET |
| Protection Rating | IP67 | IP67 rated | MET |
| Charge Power | 150 kW | 195 kW | EXCEEDED |
| Form Factor | Modular skateboard | Modular skateboard | MET |
| Delivery Timeline | <8 months | 5 months | EXCEEDED |
MonoLith™ modular skateboard platform for commercial vehicle integration.

This program needed a modular skateboard architecture that could move from concept to hardware faster than a traditional automotive supplier could schedule a kickoff meeting. The MonoLith™ delivered a 350 kW peak system in five months, in a flat pack that fit the vehicle envelope and met IP67 requirements.
Proof of concept in 12 weeks, minimum viable product in 8 weeks. Total development cadence matched commercial program urgency.
566 kg against a 700 kg limit preserves payload margin for cargo and auxiliary systems.
195 kW delivered against a 150 kW requirement, reducing fleet dwell time at charging infrastructure.
We build modular and custom battery systems for commercial EV programs, from proof of concept to production runs. Fast timelines, documented interfaces.