Class 3 Commercial Electric Delivery Van
Class 3 Commercial EV Program: Modular Skateboard Platform

MonoLith™ Commercial Van
Battery System

Modular Skateboard Architecture for Final Mile Delivery

See the Specs
82 kWh
ENERGY
5 MONTH
DELIVERY
408V
MAX
250 kW
POWER

Program Context

What makes this program significant.

Final Mile Delivery Demand

Class 3 commercial vehicles require high energy density, fast charging, and a flat load floor. These constraints make battery architecture central to vehicle design.

Modular Skateboard Platform

Flat pack architecture integrates into the vehicle chassis, preserving cargo volume while distributing weight for handling stability.

Rapid Development Timeline

POC in 12 weeks, MVP in 8 weeks. Development pace matched to a commercial program that couldn’t wait on traditional supplier lead times.

Performance Specifications

Hover over any specification to explore its performance envelope.

ENERGY CAPACITY
82kWh

Usable energy for full-day final mile delivery routes

MAX VOLTAGE
408VDC

Peak bus voltage under full charge

CONTINUOUS POWER
250kW

Sustained output for loaded commercial driving

CHARGE POWER
195kW

DC fast charge capability for fleet turnaround

TOTAL WEIGHT
566kg

System mass including enclosure and cooling, 94 kg under 700 kg ceiling

ENERGY DENSITY
165Wh/kg

Gravimetric density optimized for commercial payload requirements

Requirements vs. Delivered

Every program requirement met or exceeded.

SPECIFICATIONTARGETMONOLITH™ DELIVEREDSTATUS
Power Output>180 kW350 kW peak
EXCEEDED
Usable Energy>75 kWh82 kWh
EXCEEDED
System Weight<700 kg566 kg
EXCEEDED
Voltage Range250–500V288–408V
MET
Temperature Range−30 to +60°C−30 to +60°C
MET
Protection RatingIP67IP67 rated
MET
Charge Power150 kW195 kW
EXCEEDED
Form FactorModular skateboardModular skateboard
MET
Delivery Timeline<8 months5 months
EXCEEDED
5 SPECS EXCEEDED | 4 SPECS MET | 0 REQUIREMENTS MISSED

System Architecture

MonoLith™ modular skateboard platform for commercial vehicle integration.

Optimized Form Factor

  • 566 kg total system weight
  • 5-month delivery from contract to hardware
  • IP67 rated modular skateboard enclosure

Commercial Performance

  • 350 kW peak power
  • 165 Wh/kg gravimetric energy density
  • 195 kW DC fast charge capability
MonoLith Modular Skateboard Battery System
5 Month
DELIVERY
350 kW
PEAK
165 Wh/kg
ENERGY DENSITY
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.
EBS
EVolve Battery Systems
Colorado, USA

Why It Matters

POC to MVP in 20 Weeks Combined

Proof of concept in 12 weeks, minimum viable product in 8 weeks. Total development cadence matched commercial program urgency.

94 kg Under Weight Ceiling

566 kg against a 700 kg limit preserves payload margin for cargo and auxiliary systems.

30% More Charge Power Than Spec

195 kW delivered against a 150 kW requirement, reducing fleet dwell time at charging infrastructure.

Electrifying a commercial vehicle platform?

We build modular and custom battery systems for commercial EV programs, from proof of concept to production runs. Fast timelines, documented interfaces.

EBS
EVolve Battery Systems
Engineered and Assembled in Colorado, USA