Urban cold chain distribution is one of the fastest-growing applications for electric light-duty trucks. City councils, supermarket chains, dairy processors, pharmaceutical distributors, and meal-kit companies all need refrigerated vehicles that can operate in low-emission zones while maintaining precise temperature control. The SAGMOTO i5 electric truck, paired with an insulated reefer body and an electric transport refrigeration unit, offers a zero-tailpipe-emission solution for last-mile and mid-mile chilled logistics. This application guide explains how to specify and operate the i5 for cold chain duty.
Why Electric Refrigerated Trucks Make Sense
Traditional diesel refrigerated trucks run two engines: the vehicle engine and a separate diesel-powered refrigeration unit. This dual-engine architecture increases fuel consumption, maintenance complexity, and noise. Electric refrigerated trucks eliminate the second engine by powering the refrigeration unit directly from the vehicle's high-voltage battery or a dedicated auxiliary battery. The result is quieter operation, lower energy cost, and compliance with urban emission restrictions.
i5 Cold Chain Specifications
The SAGMOTO i5 is a battery-electric light-duty truck with a 3.5-tonne to 4.5-tonne GVWR band, depending on battery and body configuration. For cold chain use, the platform is available with two battery sizes and a range of refrigerated body lengths.
| Parameter | i5 Cold Chain Standard | i5 Cold Chain Long-Range |
|---|---|---|
| Battery Capacity | 81.1 kWh LFP | 106.9 kWh LFP |
| Electric Range | 180-210 km | 250-290 km |
| Motor Power | 120 kW peak / 65 kW continuous | 120 kW peak / 65 kW continuous |
| Peak Torque | 320 Nm | 320 Nm |
| GVWR | 4,495 kg | 4,495 kg |
| Payload (with reefer body) | 1,000-1,300 kg | 900-1,150 kg |
| Reefer Body Length | 3.8 m to 4.5 m | 3.8 m to 4.5 m |
| Refrigeration Unit | Electric 3.5 kW | Electric 3.5 kW |
| DC Fast Charging | 80 kW CCS2 | 80 kW CCS2 |
Refrigeration System Architecture
The i5 cold chain configuration uses an electric transport refrigeration unit mounted on the front wall of the insulated box. The unit is powered by the vehicle's main high-voltage battery through a dedicated DC-DC converter. This design avoids the need for a separate diesel engine and allows the refrigeration unit to operate silently while the vehicle is parked for loading or making deliveries.
Refrigeration capacity is typically 3.5 kW of cooling at 0°C box temperature and 2.2 kW at -20°C, which is sufficient for chilled dairy, fresh produce, frozen packaged foods, and some pharmaceutical products. For deep-frozen operations below -25°C, a larger 5.5 kW unit can be specified, though this reduces electric range by 15 to 20 percent.
Body Insulation and Temperature Zones
The refrigerated body is constructed with fiberglass-reinforced polyester panels and high-density polyurethane foam insulation. Wall thickness ranges from 75 mm for chilled applications to 100 mm for frozen applications. The floor is reinforced with anti-slip aluminum and fitted with loading rails for roll cages and pallets. Common temperature configurations include:
- Chilled single-temperature: 0°C to +4°C for dairy, fresh meat, produce, and beverages.
- Frozen single-temperature: -18°C to -20°C for ice cream, frozen foods, and seafood.
- Multi-temperature: A movable partition creates two zones, typically chilled and frozen, for mixed-product delivery.
Range Planning for Cold Chain Routes
Electric range in cold chain service depends on ambient temperature, refrigeration load, driving speed, and stop frequency. In hot climates, the refrigeration unit works harder and draws more energy. Urban delivery with frequent stops and starts also reduces efficiency compared to steady suburban driving. Fleet operators should plan routes so that daily distance does not exceed 60 to 70 percent of the rated range, leaving a buffer for traffic, temperature recovery after door openings, and battery degradation over time.
| Operating Condition | Expected Range (81 kWh) | Expected Range (107 kWh) |
|---|---|---|
| Urban summer, +35°C, frequent stops | 140-160 km | 200-230 km |
| Urban spring/autumn, +20°C | 170-190 km | 240-270 km |
| Suburban highway, steady 60 km/h | 190-210 km | 270-300 km |
| Frozen load, -20°C set point | 130-150 km | 190-220 km |
Charging Infrastructure
The i5 supports DC fast charging via a CCS2 connector. An 81 kWh battery can be charged from 20 to 80 percent in approximately 45 minutes using an 80 kW charger. The 107 kWh battery requires approximately 60 minutes for the same charge window. For overnight depot charging, an 11 kW or 22 kW AC onboard charger is standard, allowing a full charge in 7 to 12 hours depending on battery size.
Cold chain fleets should install at least one DC fast charger per five vehicles to handle midday top-ups if routes exceed the planned range. For operations where vehicles return to the depot each evening, AC overnight charging is sufficient and more economical.
Telematics and Temperature Monitoring
Cold chain compliance requires continuous documentation of cargo temperature. The i5 cold chain configuration can be integrated with a telematics system that records refrigeration unit status, box temperature, door openings, and vehicle location in real time. This data is stored in the cloud and can be downloaded as reports for customers, auditors, and regulatory inspectors. Temperature alerts can be sent to fleet managers if the box temperature deviates from the set point, allowing rapid intervention before product spoilage occurs.
For pharmaceutical and high-value food deliveries, some operators install redundant temperature probes in different zones of the box and connect them to an independent data logger. This dual-layer approach provides backup documentation and increases customer confidence. Geofencing can also be used to alert managers if the vehicle deviates from its planned route or enters unauthorized areas.
Total Cost of Ownership
While the upfront cost of an electric refrigerated i5 is higher than a diesel equivalent, operating costs are substantially lower. Electricity is cheaper than diesel per kilometre, maintenance is reduced because there are no engine oil changes, exhaust after-treatment, or diesel reefer unit servicing, and many cities exempt electric trucks from congestion charges and low-emission zone fees. Over a 5-year operating period at 40,000 km per year, the i5 cold chain configuration typically achieves a lower total cost of ownership than a diesel refrigerated truck of similar payload, particularly in markets with high diesel prices and urban low-emission zones.
Conclusion
The SAGMOTO i5 electric truck is a compelling platform for urban and suburban cold chain distribution. Its zero-emission drivetrain, quiet electric refrigeration, and flexible body configurations make it suitable for supermarkets, dairy distributors, pharmaceutical companies, and food delivery services. With proper route planning and charging infrastructure, the i5 cold chain configuration delivers reliable temperature control and lower operating costs than diesel alternatives.