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Old December 16th, 2012, 02:09 AM   #2 (permalink)
Harry2
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Charge-only cables haven't data wires.
So, a must-have of such a cable is a coded microUSB connector (the most common method are jumped data pins).
The phone is sensing this on its connector for controlling its charging current: So it'll decide rapid and not "trickle" charging current.
Note, the charger have to be able to supply this higher amperage of the rapid charging current (1A for phones, 2A or more amperage for tablets).
It's no harm done to use chargers with larger amperage than the phone needs.

Note also, the charger which came with your phone would have this jumped pins in its USB socket. So, with a charge-only cable without data wires the phone wouldn't "see" this.
That's the reason a charge-cable has to have this feature.

Another must-have of charge-only cables are their thicker wire gauge of the power wires. This means lower electrically resistance for that high current that flows when the phone is be charged and run a powerful navigation app at the same time.

Unfortunately, this PureGear cable's specs shows so little features so one can't say if the cable has the must-have features.

Harry
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Last edited by Harry2; December 16th, 2012 at 03:37 AM.
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