|
Chargers may differ
Al microUSB cables are supposed to be the same. The microUSB spec includes things like which pins on one connector connect to which pins on the connector on the other end of the cable (i.e., how the cable is wired) as well as where the USB logo is supposed to be placed on the connectors.
However the chagers may differ. Some chargers supply up to .5 amp of current, some up to 1.0 amp and some supply more. The manufacturer of a device decides how long they want charging to take. Faster charging means the charger needs to suply more current (amps) to the device. Less amps - slower charging. A device will not take more current then it needs. So using a 1 amp charger on a device which only uses .5 amp will not hurt anything and it will not charge faster.
Also as previously mentioned some chargers short pins or leave some open on the USB connector so when the microUSB cable is plugged in the device sees this and assumes it is connected to a computer or a low vs hig current charger, etc.
pins
|