Emobi and HeyCharge said they have partnered to retrofit offline electric vehicle chargers and connect them to Emobi’s roaming ecosystem, linking legacy infrastructure to a network of more than 140,000 chargers across the United States and Canada.
Under the agreement, HeyCharge’s hardware platform will be combined with Emobi’s roaming hub, enabling offline chargers to communicate locally without relying on continuous internet connectivity. Once retrofitted, chargers can be integrated into Emobi’s network through a single application programming interface, making them accessible across more than 26 charging networks.
The companies said the collaboration addresses a common challenge in North American EV infrastructure, where chargers located in underground garages or dense urban environments often suffer from poor connectivity. These limitations can result in higher operating costs, unreliable access for drivers and frequent authentication failures.
HeyCharge’s technology enables local, internet-independent communication between chargers and vehicles, reducing installation complexity and operating expenses for site owners. Emobi said its roaming platform then adds interoperability, allowing retrofitted chargers to support accurate session tracking, energy-based billing and real-time availability across automaker systems, fleet platforms and consumer charging apps.
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The solution is also compatible with Emobi’s JustPlug system, which allows drivers to authenticate automatically without the need for mobile applications, RFID cards or additional hardware upgrades, the companies said.
“This partnership addresses one of the most persistent challenges in EV charging: unreliable or offline chargers that were never designed for modern connectivity,” said Lin Sun Fa. “By pairing HeyCharge’s retrofit technology with Emobi’s interoperability layer and JustPlug capabilities, we’re giving operators a practical path to bring underperforming chargers online.”
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Chris Carde said the approach was designed to ensure consistent operation regardless of network conditions. “Charging needs to be secured and work everywhere, not only where the internet is strong,” he said, citing the company’s use of patented single-use security tokens to support reliable charger operation.
The companies said the retrofit solution is aimed at property managers, fleet operators and charging providers seeking to expand EV charging availability in locations where connectivity constraints have previously limited deployment.