Quote:
Originally Posted by DaleDe
sorry but that is not true. Some devices throttle down the charging requirements for CPU use on a USB port. As I said they sense that they are plugged into a computer. They typically list a longer charge time when hooked to a USB port than when hooked to a charger.
When these same devices are hooked directly to a AC charger they pull more current to charge faster. However this depends on the AC charger being able to supply more current. Devices are smarter now than they used to be but they can outsmart themselves if you use a charger with lower capacity than they are expecting.
Dale
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Actually Dalede, I belive you are wrong.
http://anythingbutipod.com/2009/08/usb-charging-guide/
here is a link that explains how usb charging works. Bottom line no matter what you think when you are using a usb charger your going to draw 500ma min at all times. The kobo works quite fine for that. There may be devices that can draw more current to recharge but there are limits to that.
Bottom line here is and will always be any usb charger will work period. no ifs buts or anything about it.
If a user is using extreme power management on a desk top then yes some comptuers can regulate the power in the usb ports. But we are not talking about computers we are talking about usb power adapters for the wall. In which case they will always be compliant to the inudstry standards period. They will always produce a min 500 ma. There are four connectors ona usb and 2 for power and 2 for data. In an ac usb charger there is no need for the data to be used.
regardless I think you and i will have to agree that we cant agree.