- Mar 14, 2000
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or is this a marketing gimmick? I have two phones i.e. Samsung and Blackberry and would like to get a charger which charges faster than the factory supplied. Both have micro usb connectors.
Thanks
Thanks
How fast something charges is based off of the milliamp (mA) rating. Standard USB from your computer charges at 500mA. A "fast" charger is usually anything above 500mA, the most common being 1A / 1000mA.
So if you have a 2000mAh battery it would take 4 hours to charge on a 500mA USB port while it would only take 2 hours to charge with a 1A fast charger.
You can see the mA rating on the chargers. It will be on the packaging and always on the charger itself: Output 5V 1A (for example)
good to know 1Amp can charge faster! my gf swore it did charge her phones much faster but i didnt believe. i was afraid 1amp charger would fry the battery
How fast something charges is based off of the milliamp (mA) rating. Standard USB from your computer charges at 500mA. A "fast" charger is usually anything above 500mA, the most common being 1A / 1000mA.
So if you have a 2000mAh battery it would take 4 hours to charge on a 500mA USB port while it would only take 2 hours to charge with a 1A fast charger.
You can see the mA rating on the chargers. It will be on the packaging and always on the charger itself: Output 5V 1A (for example)
Btw, the stock Note 2 charger is 2a.
you guys realize half of this is the charger, the other half is your device. The SGS2 for example can only take in 650 mA. 2A charger won't save you there. My iPod touch didn't charge at 2A even with the iPad brick.
you guys realize half of this is the charger, the other half is your device. The SGS2 for example can only take in 650 mA. 2A charger won't save you there. My iPod touch didn't charge at 2A even with the iPad brick.
There are two parts to this:
1) The charger has to tell the device it's charging on AC and to take whatever it wants (by shorting the data pins)
2) The device then puts itself into AC charge mode and will pull 1A or whatever the device max is
If the above both fail then you're looking at the usual 500ma charge rate.
In my experience most detachable cable type USB chargers will not successfully identify as AC without a charge-only cable. A high output charger with integrated cable will generally produce appropriate AC charging rates.
Viper GTS
There are two parts to this:
1) The charger has to tell the device it's charging on AC and to take whatever it wants (by shorting the data pins)
2) The device then puts itself into AC charge mode and will pull 1A or whatever the device max is
If the above both fail then you're looking at the usual 500ma charge rate.
In my experience most detachable cable type USB chargers will not successfully identify as AC without a charge-only cable. A high output charger with integrated cable will generally produce appropriate AC charging rates.
Viper GTS
i was checking out usb charger in walgreens the other day and i noticed that one of the chargers had two usb ports, one was labeled 1 A (labeled "iphone") and the other 2 A (labeled "ipad"). what would happen if you plugged your iphone into the ipad usb port?