iPad displays “Not Charging”
Ask iLounge offers readers the opportunity to get answers to their iPod-, iPhone-, iPad-, iTunes-, or Apple TV-related questions from a member of the iLounge editorial team. We'll answer several questions here each week, and of course, you can always get help with more immediate concerns from the iLounge Discussion Forums. Submit your questions for consideration using our Ask iLounge Submit Form. We reserve the right to edit questions for grammar, spelling, and length.
Q: I’m charging my iPad by connecting the cord to a PC. Though my battery seems to be charging, the status bar displays “Not Charging.” Why? Should I continue charging it this way or stop?
- bhimarao, via comment on Best Practices for iPad Battery Charging
A: Due to its larger battery, the iPad requires a higher current—specifically 2.1A (10W)—for optimum charging. The wall charger included with the iPad provides this, however most computer USB ports and third-party chargers do not. A computer’s USB port typically provides only 0.5A (2.5W), as do almost all USB hubs; some newer computers include USB ports that can provide up to 1.5A (7.5W) expressly for charging purposes, and modern Macs can even provide the 2.1A (10W) required for iPad charging on at least some of their USB ports. Note that third-party USB chargers generally provide anywhere from 0.5A to 1.5A, with most of the inexpensive generic chargers on the 0.5A end of that scale.
The current provided by a computer’s USB port or USB hub can also be affected by how many devices you have connected and what order you connect them in; most PCs and Macs allocate USB power on a first-come, first-serve basis, and even the 2011 Macs which provide 2.1A of current will only do so when this power is not already being consumed by other devices—see Charging your iOS devices on a Mac or PC for more information on this.
When the iPad is connected to a USB hub or standard, low-power USB port, it will only receive 0.5A of charging current, which triggers the “Not Charging” display in the status bar. Even in this state, however, the iPad will still charge—albeit it slowly and provided that you’re not subjecting it to heavy usage such as leaving the screen on at full brightness or running power-intensive apps such as games or GPS navigation apps. Note that you’re not harming the iPad in any way by connecting it to a lower power source—you’re just not charging it nearly as fast as you could from the wall charger or a higher-power USB port.
You’ll definitely want to ensure that you’re connecting your iPad directly to a USB port on your PC rather than a USB hub, since USB hubs typically only provide 0.5A of current. Further, because USB port power can vary, you may want to try different ports on your PC to see if that makes a difference, as well as disconnecting other devices that may be consuming the extra power that your iPad could otherwise use. Further, if you have devices such as external hard drives with the option to connect to external power, doing so instead of relying on USB power for these devices will help to ensure that any additional current is available for charging your iPad instead.
- Will removing a credit card from Safari also remove it from Apple Pay?
- Can I mute Handoff calls coming into my Mac from my iPhone?
- How do I keep my iPhone calls from ringing on my Mac?
- Why doesn’t Traffic show up on my Today Notifications Screen?
- Why doesn’t my iPhone reconnect to Wi-Fi after I turn it on?
- Why can’t I see the iPad-style landscape view on my iPhone 6 Plus?
- Apple to sell limited-edition Olympic Apple Watch bands exclusively in Brazil
- Report: iPhone 7 will include Lightning adapter instead of Lightning EarPods
- Edward Snowden designing device to prevent iPhone wiretapping
- Report: Apple Car team running into challenges, launch may slip to 2021
- Corning announces Gorilla Glass 5
- Apple under fire for providing refurbished replacements under AppleCare+
- Report: Apple acquires cloud music provider Omnifone? [Update: No]
- Apple releases second iOS 10 public beta
- India clears the way for Apple to open retail stores
- Apple Pay launches in Hong Kong
- Netatmo Tags for Welcome Smart Home Camera
- iDevices Socket HomeKit-enabled Light Adapter
- Koogeek Wi-Fi SmartPlug for Apple HomeKit
- Marbotic Smart Letters for iPad
- Ecoxgear Sol Jam Bluetooth Speaker
- Gumdrop Cases DropTech Case + Hand Strap for 9.7” iPad Pro
- Braven BRV-1M Bluetooth Speaker
- Braven BRV-Blade Bluetooth Speaker
- Invoxia Voice Bridge
- Incase Keyboard Case for iPad Air 2
- Inside the betas: iOS 10 Photos gets Advanced Computer Vision
- Inside the betas: iOS 10 Music app delivers ‘clarity and simplicity’
- Inside the betas: iOS 10 Maps gets a major redesign
- Inside the betas: iOS 10 shakes up the user experience
- Inside the betas: watchOS 3 promises a real speed boost
- Inside the betas: A sneak peek at what’s new in tvOS 10
- Filling the Gap: A look at third-party HomeKit apps
- Instant Expert: Secrets & Features of tvOS 9.2
- Instant Expert: Secrets & Features of iOS 9.3
- Opinion: Why Apple needs a dedicated HomeKit app