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Do mains USB chargers work for EVERYTHING?

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Old 22 March 2012, 06:25 PM
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alcazar
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Default Do mains USB chargers work for EVERYTHING?

Like all mobile phones, the wife's Kindle etc?

Could we charge her Panny camera with one?

Ad what about my Nikon D300?
Old 22 March 2012, 06:31 PM
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Ant
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All depends on the Wattage, I can charge my iPad using the iPhone charger but it's only 5W so goes very slow compared to the 10w iPad.

But I use the iPhone charge the RC helicopters and android based phones and it does the job ok.

I wouldn't charge the camera on it though.
Old 22 March 2012, 06:31 PM
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peter zippy reid
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Mine charges my iphone and my garmin satnav
Old 22 March 2012, 10:42 PM
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boxst
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They charge most things apart from the iPad. The iPad has the largest requirement (10W) of the devices I have and only the iPad charger kicks out so much power.
Old 22 March 2012, 11:11 PM
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Dr Hu
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Most generic usb chargers wont charge apple devices, as the two centre pins req a 5ohm resistor or something daft as a design feature to get you to buy pukka apple usb chargers.
As i found out after trying several usb plug top chargers before guessing something was afoot!
Old 22 March 2012, 11:15 PM
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ALi-B
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Think the iPhone charger is rated at one amp. Wattage is a bit irrelevent as its all fixed at 5 volts and its the current draw that is the critical variable (anyhoo, 1amp @ 5 volts = 5 watts)

But the genuine iPhone chargers as well as replicas have been reported to go up in smoke.

Maximum USB current does vary upon standard (USB 1, USB 2 USB 3 etc), I know USB 1.0 is supposed to be 500mA per port, but seeing multiple ports often share the same power supply its quite feasible to pull up to 2 amps from a single port (so long as nothing is connected to the other three ports)

Last edited by ALi-B; 22 March 2012 at 11:21 PM.
Old 23 March 2012, 11:38 AM
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alcazar
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So one would charge my phone, and the wife's Kindle OK then?

I suppose I'll have to take her Panny charger. She still doesn't know how to charge it......only had it three yeras, she just hands it to me
Old 23 March 2012, 11:54 AM
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Ant
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Yea to the phone and kindle
Old 23 March 2012, 12:13 PM
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urban
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Not so sure about USB chargers.
My blackberry torch will not charge on USB if the battery level is zero
It will top up no problem
Old 23 March 2012, 05:37 PM
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alcazar
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Cheers lads.
Will order one tonight.
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