AT300SE doesn't charge if connected to Laptop USB port ?!!

Dear All,
I've just purchased Toshiba Excite AT300SE, it charges normally when connected to Power Outlet, but when I connect it to my Laptop USB port it doesn't charge, is that normal or I miss something ??
Thanks in advance

The AT300SE will "trickle" charge if it is connected to a powered USB port. Many laptops do not put out enough power via their USBs to charge.

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Message was edited by: B.C. Drummin
Message was edited by: B.C. Drummin

Ipad wont charge when connected to laptop but charges when connected to wall outlet

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How to Calibrate Your Mac, iPhone, or iPad Battery
http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/
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AT300SE doesn't charge if connected to Laptop USB port ?!!

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