After four years in the industry, Wattson Smart Charging , the pioneering company in mobile charging solutions for electric vehicles, continues to advance with new developments.
Following the successful introduction of its 300 kilowatt (kW) charger in 2023 , the firm is already developing two new offerings.
“The Wattson Max will offer ten times more energy and power capacity than our other equipment,” explains Rubén Valiente, founder of the company, to Mobility Portal España.
What does this mean?

“Where we currently have 200 kWh, we will reach 2,000 kWh, and where we have 300 kW of power, we will have 3,000 kW,” he explains.
This equipment, suitable for trucks, arises in response to the need for high-power charging solutions.
At the same time, the firm will launch Wattson Box, a stationary charging solution at the customer base that allows companies to self-supply without depending on the electrical grid.
“Box connects our batteries, which are transported in vehicles, to a fixed station at the customer’s base, so they can charge without depending on us,” says the founder.
He added: “It is an ideal option for those who foresee a considerable demand concentrated in a single location, where they require a massive delivery of energy in a higher capacity format.”
A clear example is the Uber and taxi fleets, which, with hundreds of cars, do not have the necessary power in their charging stations to meet their ambitious electrification goals.
When will these innovations arrive? “Box at the beginning of 2025 and Max in the middle of the same year,” he confirms.
Flexibility and self-sufficiency are key values in Wattson’s vision and the design enhancements to its equipment reflect this approach.
In this regard, Rubén Valiente explains that one of the next steps includes adapting the chargers to standard CCS sockets, which will facilitate their use at any public station.
As well as the incorporation of a liquid cooling system that reduces the noise level in the power electronics, an ideal feature for the Wattson Box.
“Liquid cooling is a solution we are testing, although in mobile models it can complicate transport,” he says.
In addition to these new features, the company is adding artificial intelligence (AI) to optimize charging routes in urban environments.
“In the carsharing business, where cars are spread across the city, AI is crucial to identify which ones to recharge and where to strategically position chargers to maximize time and reduce costs ,” he details.
Where does Wattson operate?
The company is consolidating its presence in the national territory, currently operating in Madrid and expanding to cities such as Barcelona, Valencia and Malaga.
However, they do not rule out international expansion in the future.
According to the founder, the company’s current clients, including big names in the car rental sector such as Enterprise and Europcar, are looking to replicate this business model in other cities in Europe.
It is worth mentioning that Wattson does not face direct competitors in the sector, as most companies offer hardware sales or rentals and not the direct marketing of kilowatt hours as they do.
“We have not found a competitor with the same business model, since our product allows for fast charging and efficient energy transport on each trip, which is essential to offering a profitable service,” says Valiente.
In this context, Wattson has invested significantly in the power and efficiency of its hardware, characteristics that it considers essential to achieve a competitive and economic service.
What is your short-term goal?
His career can be summarized graphically: “It took us more than six months to reach 1,000 refills.”
“We are now achieving this figure every month and our goal is to achieve it every day over the next 12 to 18 months,” he says.