questions & answers

about safety

does your technology emit electromagnetic waves ?

Power by Contact® is a conduction charging technology, so it does not emit any electromagnetic waves, unlike induction charging technologies. This has many advantages for electronics manufacturers and users: no interference, no overheating of components, no energy losses and no health risks.

how safe is energysquare technology?

energysquare‘s Power by Contact® technology has several layers of protection: software, hardware, and electronic components. The sensors embedded in the charging surface are able to identify precisely what is positioned on it, and the charge is activated only when a compatible device is detected. When no device is detected, the surface remains passive. Our intelligent charge management system prevents from risk for the user or the device.

what are your certifications ?

As the technology does not emit electromagnetic waves and operates at low voltage, energysquare has no certification issues: Power by Contact® technology has received CE and FCC certifications.

what happens if you spill liquid or put a conductive object on the charging surface ?

Power by Contact® technology detects what is placed on the charging surface. If a liquid is spilled on it, or if a metallic object is placed on it, the detection system will determine that it is not a device to be charged, and the surface will remain inert: no current will be sent, and there will be no short circuit.

is your technology good for batteries ?

Power by Contact® technology has been designed to fit with traditional wired charging standards. Our technology is therefore optimal for the battery, as it is integrated on top the device’s original charging standard. In addition, PbC technology adds multiple layers of protection and monitoring, turning any basic charger in a smart one.

about durability

is Power by Contact® technology robust and durable ?

Power by Contact® technology has been designed in such a way that electronics and mechanics are separated: the printed circuits are placed underneath the conductive elements, and isolated from shocks and possible damage caused by use. As the conductive parts can be customized, it can be designed as resistant as necessary.

is your charging surface easy to upkeep ?

Some simple maintenance, such as wiping the surface with a cloth when it is dirty, will keep the surface as good as new. As energysquare‘s PbC technology relies on electrical conduction, physical contact is needed and thus it will no work if the surface is covered by a layer of solid material. Our tests showed that the surface needs to be fairly clean, keeping enough electrical contact even covered with some fluids or dirt.

about integration

can energysquare coexist with other charging technologies ?

Power by Contact® technology can coexist with other charging technologies. The choice will be left to the user to charge his device with a wire, a dock, or on an energysquare charging pad.

are energysquare technologies protected with intellectual property ?

All aspects of Power by Contact technology are covered and protected by an international patent portfolio.

energysquare has been supported by France Brevets, an intellectual property investment fund created by the French government.

do I need to redesign my products to make them PbC compatible ?

You have two choices :

Enhance your product by embedding the PbC technology directly inside it. To create the contact points, you can add conductive parts to the product body, or simply use its original prominent conductive parts. In most cases you only need to upgrade the product design, not doing a full re-design.

Use an appropriate external adapter without the need to modify your products at all, and retrofit existing products.

what materials can I use for the devices and charging surfaces conductive parts ?

To give our customers the choice of design and materials, we have separated the electronic part from the mechanical part. Almost any conductive material is acceptable to manufacture Power by Contact® charging surfaces or to integrate the technology into a device. If you need more information, feel free to contact us, our R&D lab will give you more details on the available materials.

why choose conduction over induction ?

For electronic device manufacturers, induction has many disadvantages: difficulty of integration, high cost, modification of the product design, low charging speed, charging on a specific point, interference and most of all and a power limit. Power by Contact technology brings reliability and efficiency to the charging, allowing users to charge multiple devices simultaneously at the same speed as wired charging, without energy loss and interference. This technology also allows full-speed charging, and can be easily integrated into any electronic device at low cost.

technical specifications

can you charge devices at different voltages ?

One of the main features of Power by Contact® is multi-voltage: it can charge devices requiring different voltages simultaneously on the same surface, thanks to communication between the surface and the device, which determines the voltage required and adapts the load accordingly.

how many devices can you charge at once ?

Power by Contact® needs two tiles per device placed on the surface. The number of tiles determines the maximum number of devices that can be charged simultaneously, and our modular technology allows to add as many tiles as you want.

Consequently, the technology is easily scalable : depending on your needs, you can define the dimension and capabilities of the charging surface, for example by changing the number and size of the conductive tiles.

do I need to place my device precisely on the surface?

One of the main advantages of Power by Contact® technology is the drop and charge feature: there is no need to position your device precisely on the surface, it can be positioned anywhere on it and it will charge.

how fast will my devices charge?

As our technology works by contact, power losses are minimal and devices will charge at the same speed as a classic wired charger.

how does your conductive technology work ?

It works thanks to our detection system, which allows us to determine exactly what is placed on the surface, and to activate its conductive elements only when a compatible device is detected.

For more details, you can go to our charging tech page.

which devices does PbC technology support?

Power by Contact® technology can be embedded in almost any device, with any shape or material. The versatility of our charging technology allows compatibility with all a large range of electronic devices.

how much power can your technology deliver ?

Power by Contact® technology can currently charge devices up to 125W and a total of 375W per charging surface.

It can be adapted to higher power if needed.

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