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Old 11-16-2017, 11:52 AM
Tripler Tripler is offline
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Join Date: May 2000
Posts: 7,106
Question about charging an iPod (yes, I have one!)

I have a 10-year old iPod that still works like a champ! I use it on flights and drives to catch up on podcasts, and maybe play a little solitaire. I have other electronics, but music/camera/games have all been software disabled (work's security restrictions).

I noticed this week, that when I plug my iPod into the computer, it charges fine. When I plug it into the USB port in my new truck, it charges fine. However, when I plug it into a multi-port USB charger or a spare charging battery, it won't charge.

Has anyone discovered why an iPod will charge in some ports, and not others?

This means no more Led Zeppelin on Flight 5782: [-___]+
Old 11-16-2017, 01:39 PM
beowulff beowulff is online now
Join Date: May 2001
Location: Scottsdale, more-or-less
Posts: 15,158
The iPod needs the data pins biased in a specific way for it to charge. Most modern USB chargers are correctly biased, but maybe not the ones that are giving you trouble.

Previous thread:

Some more information:

Note that there is a lot of "VooDoo" about iPod and iPhone charging - especially with the newer "Lighting" cables.
Old 11-19-2017, 01:10 AM
Tripler Tripler is offline
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Join Date: May 2000
Posts: 7,106
Interesting. . . I have to do some research and lab work.

Thank you for this!

I didn't realize there was an earlier problem.
Old 11-19-2017, 10:30 AM
Doug K. Doug K. is offline
Join Date: Jul 1999
Location: Hutchinson, KS
Posts: 3,348
Your multiport usb charger and backup battery may not provide enough current to charge the iPod.


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