We took the internet out of a smart charger to make it more secure, lower cost and easier to deploy – anywhere.
When Liberty Plugins was founded in 2009, few were thinking about electric vehicles, and even fewer were thinking about the challenges inherent to keeping them charged and ready to drive. For reference, at the start of 2009 Tesla had only delivered 147 cars, and the now ubiquitous J-1772 charge plug standard had yet to be approved by UL. By 2010, Tesla crossed the 1000 vehicle mark, the J-plug was a standard and Liberty Plugins was born with the mission to solve the charging problems that would come with scale. This took some vision, an anticipation of what the future held. Our founders knew that electric vehicles were inevitable, despite headwinds, and designed systems that would promote the viability of the new technology – enabling the deployment of charging where people spend most of their time: offices and apartments. Our Hydra™ made this a simple thing to do at a time before smart chargers and connected devices.
However, a problem remained. As long as there were places where EV chargers could not be practically deployed, there would always be places where EVs couldn’t go – and a reason to keep internal combustion vehicles around.
Three types of customer were especially challenging: high security sites with network restrictions, customers who needed to manage access, but were focused on cost, and remote sites where an internet connection was not possible. In pursuit of our mission, we went ahead and did what nobody else could: we made a smart charger that does not rely on an internet connection to sell sessions and manage access.
Liberty invented and patented CodeConnect™ technology to solve for these customers and enable EV chargers to be deployed where they otherwise couldn’t: National parks, military bases and low-income housing developments have all benefited from this technology today.
How does CodeConnect™ Work?
If you have a Gmail account, Microsoft login or do any online banking, you are familiar with two-factor or multi-factor authentication. Sometimes a service will text you a code to confirm your identity, sometimes you will use an app to get a code that you valid for 30 seconds. The latter is called TOTP and is similar to how CodeConnect™ works.
- Each CodeConnect charger keeps time with a highly accurate internal clock.
- When it leaves the factory, a secret key is shared between the unit and our pay server.
- When a user buys a session, they are given a code that is generated using the secret key specific to that charger and the current time as inputs.
- The charger, synchronized to the server with the secret key and current time, anticipates and recieves that code and unlocks to charge for the specified duration
- Invalid codes are rejected
CodeConnect does not require a transaction
It’s important to note that while most of the magic of our patented CodeConnect technology is dedicated to enabling payments to an off-line device – that’s not the only way to use a CodeConnect charger. Embedded codes can be granted to your organization enabling any authorized user to start a session without needing to pay or use the internet at all. Some customers simply need access control that’s better than a padlock – we offer that with CodeConnect.
Who is CodeConnect for?
Liberty CodeConnect™ chargers come in three power levels that make them suitable for nearly all charging applications from passenger vehicles to larger medium and heavy duty electric vehicles.
Workplace and Multi-unit Applications
Drivers coming home to their apartment or arriving at won’t put as high a premium on fast charge rates as a commercial driver would. For these applications, a 40A or 48A charger is perfect, offering plenty of power to deliver a meaningful amount of energy to a passenger vehicles battery over the course of a 1-4hr charge session. For these use cases, we offer CodeConnect chargers built on the Wallbox Pulsar platform.
Commercial and Industrial
For users that drive for a living, time is money and time spent charging can cut into margins. Furthermore, larger vehicles usually come with larger batteries. For both reasons, more power is warranted for commercial applications, whether they are bus fleets, delivery vehicles or even cabs.
For commercial applications, Liberty Plugins has partnered with Enphase since 2014 to augment their CS-100 chargers with our CodeConnect technology.
Ready to learn more?
Check out our product page to learn more about CodeConnect and connect with our sales team.