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Ampere Question |
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#1 |
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Forum Member
Join Date: Nov 2011
Location: In bed watching TV
Posts: 837
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Ampere Question
I have three devices that have micro USB to AC leads
A Phone, Tablet and a WiFi dongle They are all 5.0Volts But they have different amps: 550ma, 1.0amps and 2amps. I don't want to carry three chargers. So the question is: Can I use the 2amp plug for the device that wants 550ma? (without causing damage) |
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#2 |
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Inactive Member
Join Date: Jan 2003
Posts: 43,524
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Yes you can. all USB is 5V. computer ports are up to 500mA
and various chargers are different currents. i think my tablet has a 3A charger, but it up to 3A rather than specifically 3A but the charger will supply whichever is the maximum of it's power or that the device is requesting. no damage is caused either way. so you can use any. but obviously it makes sense to carry the largest one as it will be able to charge the device that requests the most current the fastest. |
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#3 |
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Forum Member
Join Date: Nov 2011
Location: In bed watching TV
Posts: 837
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Thank you, Flagpole.
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