We often see people walk through our doors with iPads and iPhones that refuse to charge or when they do take charge it seems to take forever for them to hit 100% battery.
We have the ability to test how much current the phones and tablets are taking, and this will tell us if the issue is with the device or the customers charging setup.
Which brings me to the main point, just because your USB cable fits into the socket, doesn’t mean it’s suitable to charge your device. For example, an older iPod will only draw about 400mA or 0.4Amps whereas an iPhone 6 can draw up to 1.3A and a dead flat iPad Air 2 can draw around 2.3Amps! The wall plug (adapter) sold bundled with your iDevice will be perfectly capable of providing the current required for your charging needs but when you mix and match chargers, things can get messy.
For example, if you plug an iPad which ideally needs 2.4A into an adapter that can only supply 1A, it will charge much slower, especially if it is in use. And if you charge your phone which needs 1A from a computer USB port which typically only supply 0.5A, you’ll run into trouble too.
“What about if I plug my iPhone into an iPad adapter?” you may ask? This is absolutely fine, the maximum current that the phone will draw is about 1A and having the extra capacity is never an issue.
So the moral of the story is to check your iPhone charging setup, make sure your wall adapter is rated at a minimum of 1A or 5 Watts and then the only other main concern is your cable.
But that’s a whole other blog post…