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Charging devices from USB ports
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Topic: Charging devices from USB ports (Read 12716 times)
meromeo
Member
Posts: 1
Charging devices from USB ports
«
on:
June 07, 2012, 11:59:52 am »
There are many specitications on USB powered devices?.
That is: I´ve seen some chargers devoted to some particular devices (telephones, ipod, etc).
Aren´t the same requirements for charging?. If not, are regulated by any standard?.¡
Best regards.
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Jan Axelson
Administrator
Frequent Contributor
Posts: 3033
Re: Charging devices from USB ports
«
Reply #1 on:
June 07, 2012, 12:08:10 pm »
The USB battery charging spec is here:
http://www.usb.org/developers/devclass_docs
It's been through a few revisions, which might explain some incompatibility. Ideally any USB charger would work with any device.
Jan
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Barry Twycross
Frequent Contributor
Posts: 263
Re: Charging devices from USB ports
«
Reply #2 on:
June 08, 2012, 01:33:16 pm »
Also Apple invented their charging scheme before the USB-if came up with their charger spec. So iPod (and iPhone etc) chargers may be a different spec to other ones. Though later iPod and iPhone recognise USB-if chargers.
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Charging devices from USB ports