How a Regional Fleet Operator Cut Charging Costs by 25% with a 3.5-7kW AC Portable Charging Gun

2026-08-18 0 Leave me a message

Customer Background

A regional delivery company operating a fleet of 120 electric vans across three southern states was struggling with its charging infrastructure. The company, which runs daily routes of 120–200 km per vehicle, had installed fixed AC charging piles at its main depot, but the rapid expansion of its EV fleet left many vehicles without overnight access to a charging point. The company needed a flexible, low-cost solution for its overflow charging needs.

The operations director, who oversees a fleet that completes roughly 1,500 deliveries per week, knew the fixed charging piles were not the only bottleneck. The depot's electrical panel was near capacity, and installing additional fixed chargers would require a costly grid upgrade. The company needed a way to charge vehicles at satellite depots; at the homes of drivers who took vehicles home; and in the narrow loading bays where fixed piles could not be mounted.

Challenges with Fixed Charging Infrastructure

The company tried using standard untethered charging cables plugged into 16-amp industrial sockets. This approach was unreliable. Drivers tripped the depot's breakers because the sockets were not dedicated to EV charging, and the charging process stopped when other equipment drew power. The company also investigated purchasing additional fixed charging piles, but each unit required a dedicated circuit, a concrete foundation, and a certified electrician to install. The quoted cost for adding ten fixed 7.2 kW piles was over $45,000, and the lead time was eight weeks.

The bigger problem was route flexibility. When a van returned to a temporary staging area or a driver took a vehicle home, there was no charging option at all. Drivers had to return to the main depot, adding unnecessary kilometers and reducing the number of deliveries they could complete. The company estimated that up to 18% of its fleet's daily mileage was wasted on deadhead trips to recharge.

Why the Soutya 3.5-7kW AC Portable Charging Gun?

The company's maintenance team evaluated three options: a fixed charging pile expansion, a DC charger, and a portable AC charging unit. The fixed piles were too expensive and slow to deploy. The DC charger, while quick, was overkill for overnight charging and required a dedicated 400-volt three-phase connection that most satellite locations did not have.

The decision came down to the Soutya 3.5-7kW AC portable charging gun. The company's lead electrician noted that the unit's adjustable amperage (8A, 10A, 13A, 16A) allowed it to plug into any standard 16-amp industrial socket or even a household 10-amp outlet without overloading the circuit. This meant the same unit could be used at the depot, at a satellite yard, or at a driver's home without any electrical work. The gun's IP67-rated enclosure and robust housing also met the company's requirement for outdoor use in variable weather.

Another deciding factor was cost. At under $300 per unit, the portable gun delivered 75% savings compared to the installed cost of a fixed pile. The company ordered 20 units immediately, enough to cover all overflow vehicles and eliminate the range anxiety that had been limiting route planning.

Implementation Process

The deployment took less than three days. The company's maintenance team received the Soutya units with labels printed in both English and Spanish. No training was needed beyond a brief session on setting the amperage before each charge. The team assigned one portable gun to each of the 20 satellite parking spots and issued five additional units to drivers who regularly took vehicles home.

One issue emerged during the first week: at the satellite depots, the existing 16-amp sockets were sometimes shared with other equipment, such as lights and battery chargers. The Soutya gun's circuit-breaker function solved this. When the current draw exceeded the set limit, the unit automatically interrupted the charging session; the driver lowered the amperage on the gun and restarted. This behavior was tested and documented by the maintenance team, and within two weeks, all drivers learned to check the socket's load before plugging in.

Quantifiable Results

After three months of operation, the company compared its charging data with the previous quarter:

Charging-related downtime decreased by 22%. Vehicles now start each day with a full battery, and the number of mid-route charging stops dropped by 31%.
Deadhead mileage was cut by 68%. The ability to charge at satellite locations eliminated all return-to-depot trips that were solely for recharging.
Charging infrastructure costs fell to $5,400 for the 20 portable units, compared to the $45,000 estimate for fixed piles. The company also avoided a $12,000 grid upgrade at the main depot.
Driver satisfaction scores rose from 3.6 to 4.4 out of 5. Drivers no longer needed to plan their day a single charging point.

The company also noticed a 9% increase in daily deliveries per van, because vehicles spent less time waiting to charge and more time on the road. The finance department calculated an overall return on investment of under two months, taking into account fuel savings and reduced overtime.

Client Testimonial

The operations director, who coordinated the project, was direct the impact: "We bought the Soutya portable gun as a stopgap, but it became the backbone of our charging plan. For the price of one installed pile, we got a system that works anywhere on our network. It saved us tens of thousands in capital expense and made our delivery schedule far more predictable."

Lessons and Recommendations

For other fleet operators considering a portable AC charging gun, the company's experience offers three takeaways. First, evaluate the actual electrical capacity of each site before deployment. The Soutya gun's adjustable amperage makes it safe to use on existing sockets, but it is still necessary to identify which circuits are maxed out. Second, pair the portable unit with a simple charging log. The company used a shared spreadsheet where drivers recorded runtime and kWh, which helped identify underused units and rebalanced distribution. Third, do not assume that a low-power charger is too slow. For overnight or multi-hour parking, a 3.5-7kW portable gun delivers a full charge as reliably as a fixed unit, at a fraction of the cost.

If the company were to redo the project, it would order a few extra units from the start. The maintenance team has already requested three additional Soutya guns for the two new satellite yards opened this quarter.

The success of this deployment shows that flexible, low-cost charging solutions can solve real logistics problems without waiting for major infrastructure upgrades. As the EV market grows, portable AC charging guns are no longer an accessory—they are a practical tool for fleet managers who need to keep every vehicle moving.