Engineered with Experience

Electrify Your Fleet

A battery-electric solution enabling zero-emissions performance in an extensive range of market segments. E1 is based on a dependable, proven cutaway package, but with better durability & efficiency, and simplified maintenance

"driven & friendly"

Engineered for Upfitting, Electrified for Fleets

A familiar platform gets even easier to utilize with the advantage of EV packaging, and lower operating costs with reduced maintenance. With 158-inch (4,013mm) or 176-inch (4,470mm) wheelbases available, E1 also has the flexibility to meet your upfitting needs.

"driven & friendly"

Proterra Battery

With 113kW of energy storage, and proven by over 20 million miles of service, Optimal’s partnership with Proterra provides our products with the best performance & reliability, all from right here in the USA.

Level 2 AC Charge

Standard

DC Fast Charge

Optional

Charge Time

< 8 Hours

< 2 Hours

"driven & friendly"

Rear-Mounted Motor

With 280 kW of propulsion on tap and 1700Nm of instant EV torque, the S1LF can reach a top speed of 70mph (112kph) and has 30% gradeability*.

*at GVWR of 14,500 lb (6577 kg)

"driven & friendly"

Secured Power Electronics

Another first in the industry: our products feature 100% of the power electronics, including the battery, motor, driveline, motor controllers, and power/cooling lines, in between the chassis rails while also protecting the vehicle’s critical components.

The Silent Intersection of Comfort & Quality

Our years of experience in automotive engineering have also taught us how to design for an optimized user experience. Enabled by quieter electric propulsion, optimized ride dynamics and body design, and quality materials, our products enjoy lower NVH levels (noise, vibration, harshness) that benefit both passengers and workers.

Convenient Comfort
The Silent Intersection of Comfort & Quality

Nothing is more comforting than familiarity. Except for the smooth, quiet power delivery of EV propulsion in an optimized chassis. With E1, you can have both, with an electric powertrain silently integrating with the convenience of OEM instrument cluster & controls

Specifications

High Performance Traction Motor

1000 Nm
Continuous Torque
1700 Nm
Peak Torque
170 kW
Continuous Power
280 kW
Peak Power
300 - 750 vdc
Voltage Range

Battery

113 kWh
Proterra Battery
326V (Nominal)
System Voltage
Water/Glycol Mixture
Cooling
<8 Hours Charge
With Standard Level 2 AC Charge
<2 Hours Fast Charge
With Optional DC Fast Charge
-22° to +133°F (-30° to +56°C)
Operating Temperature

Highlights

E450
Ford Chassis Platform
All Electric
Propulsion System
≈ 125+
Miles Range
113kWh
Proterra Battery
280kW
Traction Motor
≈ 70 mph / 112kph
Max Speed
Push Button
Shift Mechanism

Buy America Compliant

With 91%* of our components made in-house in Indiana, or sourced from partnerships with American manufacturers, you can be proud knowing your fleet supports American companies and enables Buy America incentives.