Why Does My iPad Say "Not Charging"?

Written by spanner spencer
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Why Does My iPad Say "Not Charging"?
The iPad requires 10-Watt USB power adaptor that supplies twice as much current as the iPhone's charger. (mobile phone charger image by Pavel Bernshtam from Fotolia.com)

Although many unofficial peripherals are readily available, Apple is very strict about licensing authorised iPad accessories. This policy is maintained by codes built into the hardware, which the iPad checks before agreeing to work with the peripheral.

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USB Ports

Some new computers have higher powered USB ports, but most computers, peripheral equipment such as printers and stereos and older USB ports only supply a 500 Milliamps (ma) current. This isn't enough to charge the iPad while it's in use, and the device with therefore display the "Not Charging" warning on the home screen. It will charge -- albeit more slowly than with its high-powered own mains adaptor -- if it is switched off, however.

iPhone Power Adapter

The iPhone's 10-Watt USB power adaptor is rated at 1-amp, which is twice that of ordinary USB ports and most generic USB adaptors. Depending on the level of the iPad's battery, the iPhone power adaptor will be enough to charge the iPad. It might require the device to be switched off while charging, and it will take longer to achieve a full charge than when using its own authorised charger.

Generic USB Adapters

If using a generic USB adaptor, it must still be confirmed compatible with the iPad in order to charge it. Check with the manufacturer that the adaptor is indeed compatible with the iPad and that its current supply is no less that 1-amp. Ideally, an iPad charger will be rated at a minimum of 2-amps. If the charger has not been authorised by Apple, it could be lacking the proper hardware compatibility codes and the iPad will refuse to charge, regardless of whether the charger can supply the required power levels, giving you the "Not Charging" warning.

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