![]() ![]() You can fiddle with your computer’s power management settings (search for ‘power’ in the Windows 10 start menu to access the relevant settings), although you might reflect that there are more environmentally friendly ways to charge a phone than keeping a desktop computer running. Computers that have put themselves to sleep will often cut power to USB ports, which might explain why you left your phone on charge while you went to lunch and it’s only added 2% by the time you got back to your desk. First, the computer normally has to be powered on (we’ll come back to this in a sec). If your phone isn’t charging at all from a computer’s USB port, and you’re sure the port is working, then there are a few things to check. But for that you need the charger the phone is supplied with you won’t get that kind of performance by plugging your phone into a computer’s USB port. Many of today’s posher phones – and even more economical ones – use a system called Fast Charge that blasts the battery from empty to half-charged in as little as ten or 20 minutes. And even fully functioning USB ports may not have enough juice to top up your phone as quickly as you’re used to. Some companies disable USB ports on their computers because they don’t want staff plugging in disk drives and taking home sensitive information. Some older USB ports on computers may deliver little or no power. Although the USB port on your computer looks the same as the one on your phone charger, the current output is very different. Click here to find out more and order a copy. This article is an extract from Help! My Computer Is Broken. ![]()
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