Xos has expanded its Xos Hub mobile charging lineup with three new capacity options aimed at making fast EV charging more accessible to commercial fleets of all sizes and duty cycles, the company claims.

According to a news release, Xos introduced 210 kWh, 420 kWh, and 630 kWh versions of its Xos Hub mobile energy storage system.

Xos said earlier Hub deployments with customers including SparkCharge, Caltrans, and Xcel Energy helped shape the new configurations, with applications ranging from emergency roadside charging to grid support and utility fleet operations.

The mid-range 420 kWh Hub increases capacity by 50% over the company’s previous 280 kWh model and is designed to charge 15–20 commercial vehicles per cycle. Xos said the unit remains under 10,000 lb, allowing it to be towed by a standard ¾-ton pickup without requiring a commercial driver’s licence. It includes four CCS1 charging heads and expanded cable configurations to increase throughput while maintaining portability.

The 630 kWh Hub targets more energy-intensive applications, including medium- and heavy-duty electric trucks. Despite the larger capacity, Xos said the unit maintains the same compact form factor as lower-capacity models, enabling deployment in space-constrained locations.

The system’s modular design allows multiple Hubs — up to 10 units — to be connected together with a single grid tie, providing more than 6 MWh of total capacity. This approach allows fleets to scale charging as their electric vehicle counts grow while limiting utility interconnection costs, Xos says.

Customer deliveries of the expanded lineup are set to begin in Q1 2026, with all three options available for order.