The New Trent Travelpak 4000mAh plug in adapter makes a handy replacement to your iOS device AC USB adapter. I’ve been using the Travelpak 4000mAhfor about 3 months now and find it to be the perfect ...
In the beginning, USB could deliver up to 500mA of power at 5V, which worked out well enough for early phones. But as chipsets became faster and screens grew bigger, batteries ballooned in size (we ...
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