The Challenges of Charging Multiple Mobile Devices

If you have multiple mobile devices such as laptops, iPad® and Android™ tablets, smartphones and MP3 players to charge simultaneously, it can be a challenge to find an available USB charging port for all of them. Even if you did, it would be a very slow process if you planned on using standard USB 1x and 2.0 ports, which have a maximum charging current of only 500 mA @ 5V (2.5W). Standard USB charging ports were adequate for older flip phones with 800 mAh batteries, but today’s generation of smartphones can have battery capacities of 2000 mAh or more. Tablet batteries are even bigger with typical capacities of 6000 mAh or more. [Read more…]