Electronic gizmo charging nerds, need input

D

Dinkum

Joined
Mar 24, 2007
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Hey guys, quick question regarding charging an eBook reader.

I bought a charger for it from the store I got the reader from (Tandy like place in Oz) The device in question has a 5v 1000 milliamp sticker on the back, the guy in the store gave me one of those multi charger things that are adjustable in terms of the male plug, not output.

It is rated as 5V 3 Amp. will it fry my reader?
 
What kind of eReader is it? Not sure if this will help, but the factory charger for my Nook is rated at 5v .85 amps
 
If you have the reader's owners manual it should talk about the correct charger and hopefully the electrical specs necessary. The manufacturer's website or support forum should have that kind of info too.
 
You are smart to ask as the clerks in those stores sometimes don't know what they're doing. In this case, fortunatlely, the clerk is correct. Your reader device will be fine with this charger.

The voltage must match. If the charger's voltage is lower than the device's requirement, then the device will not charge properly. If the charger's voltage is higher than the device's requirement, then the reader may be damaged.

The current rating works differently. If the charger's rating is lower than the device, then the charger may not be able to produce enough power to satisfy the device's need; this may result in improper charging of the device and/or damage to the charger (though a well-designed charger should turn itself off in such a case). But, if the charger's current rating is higher than the device's requirement, it just means that charging this device will be easy work for this charger. It is actually best for the charger's current rating to be higher than the device's requirement.

You Australians are versed in Metric System measurment, so I'm sure you figured out that 1,000mA = 1A.
 
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