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Posted by Todd Allcock on September 5, 2008, 11:35 pm
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At 05 Sep 2008 16:21:09 -0700 Andrew Hamilton wrote:
> When the battery is low and I REALLY need to charge my Samsung
> BlackJack II, then it can't take a charge off the USB/data cable. I
> have to "kickstart" the charge with the wall-wart charger.
>
> Is this a bug or a "feature?"
Neither, really- just a lousy charge implementation many USB powered
devices share. The low voltage/power output of USB (5V, 500mAh) is less
than the wall-wart.
Are you sure it doesn't charge eventually if you leave it long enough?
> Either way, is there a patch or
> workaround?
My workaround was a stronger USB charger- I carry a small AC plug with USB
output (5.4V, 800mAh) and use it to charge my various USB-powered devices
with their own sync/data/charge cables.
> When I travel with my laptop, my Nikon D SLR, smartphone, my GPS, and
> my Hyperdrive portable data storage unit, I have pounds and pounds of
> just chargers and data cables. It's nice to be able to charge up
> devices off the laptop's USB connection. I'm surprised that the TSA
> guys at the airport x-ray checkpoint haven't done a strip-search of my
> suitcase when it is full of all these chargers and cables.
I get pulled out of line almost every time when traveling with the family!
My bag usually has two or three cellphones, a portable hard drive for my
ASUS EEE PC, a couple of Pocket PCs, two Zunes, a couple of smaller MP3
players, a wireless router, and the assorted chargers, battery packs and
cables to keep it all running.
I keep the adapters and devices all categorized in quart ziplock bags so
the TSA guys don't make a mess of it all when they paw through the bag.
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