Speed Up USB Charging with a Dedicated Charger

By Jason Fitzpatrick on August 7th, 2012

When you need power for your gadgets and you need it fast, skip the USB port on your computer and switch to a wall charger for a boost; read on to see why.

Specifications for USB ports have changed over the years and the port on your computer likely doesn’t put out enough juice to charge your portable electronics as fast as a wall charger could. Extreme Tech explains:

There is a huge variance, then, between normal USB 2.0 ports rated at 500mA and dedicated charging ports which range all the way up to 2100mA. This leads to a rather important question: If you take a smartphone which came with a 900mA wall charger, and plug it into a 2100mA iPad charger, will it blow up?

In short, no: You can plug any USB device into any USB cable and into any USB port, and nothing will blow up — and in fact, using a more powerful charger should speed up battery charging.

For a more detailed look at the specifications and how to maximize your battery charging based on the device and its age, hit up the link below.

How USB Charging Works, Or How To Avoid Blowing Up Your Smartphone [Extreme Tech]

Jason Fitzpatrick is a warranty-voiding DIYer who spends his days cracking opening cases and wrestling with code so you don't have to. If it can be modded, optimized, repurposed, or torn apart for fun he's interested (and probably already at the workbench taking it apart). You can follow him on if you'd like.

  • Published 08/7/12
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