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Authenticating Batteries Before Rapid And Fast Charging

Using authentication that allows the smartphone to check if the installed battery is suited to rapid charging.

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If asked, most consumers will complain about the battery life of their smartphone. In reality, this is more a charging issue since, with traditional charging solutions, even a couple of hours of charging can result in a minimal improvement in charge on some handsets. Smartphone manufacturers are differentiating their offering by providing fast or rapid charging solutions. However, this places the battery at greater risk of catastrophic failure should it be replaced by a battery that is neither fast-charge capably, nor approved by the smartphone manufacturer.

While consumers are grateful for today’s improved charging speeds, there are still challenges with regard to interoperability between chargers and smartphones, and even the cables used play a role. And, although authentication is available for these devices, none is being implemented between the smartphone and its battery. With an extensive market of third-party, potentially unsafe, batteries, the use of hardware-based security to hinder product cloning needs to be urgently addressed. This white paper explains how to place the smartphone at the center of trust for the entire charging process, and which authentication solutions allow the smartphone to check that the installed battery is suited to rapid charging.

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