Abstract
To help manage performance and reliability risks that may be associated with unverified user-removable batteries in devices, such as hearables, an authentication method can be used as an alternative to certain traditional cryptographic techniques. The described technology may utilize a low-power integrated circuit within the battery pack that stores a unique serial number (S/N) from a sparsely populated namespace, where many possible S/Ns can be deliberately unused. Upon battery insertion, a host device can read the S/N and send it for validation via a cloud-based server. This verification can allow the system to differentiate authentic batteries from unverified or counterfeit ones. A possible application is to enable the use of optimal, high-rate charging parameters for authenticated batteries while applying more conservative charging profiles for others. This may help to mitigate risks to device performance and reliability without employing certain types of complex, resource-intensive hardware.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Ding, Yao and Lee, Amos, "Selective Battery Charging Profile Management via Cloud-Based Sparse Serial Number Validation", Technical Disclosure Commons, ()
https://www.tdcommons.org/dpubs_series/8825