Battery and Transfer Speed Performance Audio: Apple promises up to 30 hours of music playback time from a full charge when using wired headphones at 50% volume, and the seventh-generation iPod nano actually achieved
35 hours and 49 minutes
of continuous playback in our testing—an improvement over the two prior models.
Apple says the battery life of the iPod touch (7th generation) is
up to 40 hours
, and is good for up to eight hours of video playback.
According to this article, your Nano should get
24 hours of music playback on a full charge
and 5 hours of video on a full charge, but those are best case scenarios. As for your second question, see this Apple support document.
Turn the iPod nano on and look at the top right corner of the screen
. There you will see the battery icon. If the battery bar is full and green, the iPod is fully charged. If it is halfway full and green, it has a 50 percent charge.
The iPod nano battery is 80-percent charged in about one and a half hours, and fully charged in
about three hours
. If you charge iPod nano while adding files, playing music, listening to the radio, or viewing a slideshow, it might take longer.
If it is out of warranty,
Apple once would replace the battery in any iPod nano model
for a cost of US$59 plus US$6.95 shipping, but it no longer does. … Replacing the battery in the iPod nano models — regardless of generation — is difficult and requires soldering. Professional installation is recommended.
If it is out of warranty, Apple will replace the battery in your iPod touch for a cost of
US$79 plus US$6.95 shipping
. However, a variety of less expensive third-party battery replacement services also are available.
If your battery is fully charged, you’ll
see the Plug icon on the battery icon
. If your battery is still charging, you’ll see a lightning strike icon on the battery icon.
Use the
Lightning to USB Cable
to connect iPod nano to your computer, sync content, and charge the battery. You can also use the cable with the Apple USB Power Adapter (sold separately).
To turn the nano on,
hold the Sleep/Wake button until the screen lights up
.
Like your laptop, cell phone and other electronic devices, your iPod is equipped with a rechargeable battery,
one you replenish by plugging it into a power source
. … If your iPod works only when you’re charging it and it’s an older device, your battery may simply have worn out.
Hold down the
“Sleep/Wake” button on
the upper-right edge of the device and the “-” button on the upper-left edge of the device for eight seconds, or until the gray Apple logo appears on the screen. After the device resets and reboots to the iPod Nano home screen, attempt to charge the device again.
Connect the iPod Nano to
the Apple USB charging cord
, using the long and flat 30-pin port on the bottom of your Nano. Connect the USB cable on the other end to your USB port in the computer. Make sure the USB port is directly connected to your computer. A USB port in a removable keyboard will not power the iPod.
The iPod Nano and iPod Shuffle have been let go
primarily due to their inability to connect to the internet
. As the Internet of Things grows, all the devices in the world today require a certain level of connectivity since people are also adapting to getting things done on the move efficiently.
If it is out of warranty,
Apple once would replace the battery in
your “full size” iPod — the original iPod, iPod 2nd Gen, 3rd Gen, 4th Gen, 5th Gen/video, or classic — for a cost of US$59 plus US$6.95 shipping, but it no longer offers this service. … Many sell batteries for self-installation as well.
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