Usb block charger7/14/2023 The USB specification spans several generations of power management. This article discusses how to achieve this balance. It also lowers cost by reducing customer returns and warranty repairs.Ĭharging batteries with USB requires balancing battery "care and feeding" with the power limitations of USB and the size and cost barriers ever present in portable consumer device designs. A well-designed charger optimizes safety and the user experience. This is particularly true for Li+ batteries, where improper charging can not only shorten battery life, but also become a safety hazard. Nonetheless, there is more to battery charging than picking a power source, USB or otherwise. This, in turn, allows charging from a far wider variety of sources than in the past when each device required a unique adapter.Īrguably the most useful benefit of USB's power capabilities is the ability to charge batteries in portable devices. A tangible benefit of this wide-spread use is the emergence of interchangeable plugs and adapters for charging and powering portable devices. Recently the power aspects of USB have been extended to cover battery charging as well as AC adapters and other power sources. USB has become as much a standard for connecting power to portable devices as it has for serial communication. Charging batteries from USB requires balancing battery "care and feeding" with the power limitations of USB as well as the size and cost barriers ever present in portable consumer device designs. It also lowers cost by reducing customer returns and warranty repairs. This is particularly true for Li+ batteries, where improper charging can not only shorten battery life, but also can be a safety hazard. Arguably the most useful part of USB's power capabilities is the ability to charge batteries in portable devices, but there is more to battery charging than picking a power source, USB or otherwise.
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