Usually, laptop charger and other electronic devices will come into damage after something abnormal and unusual occurred. That is to say, a normal charger is just a guarantee to the normal work conditions.
About mains frequency
It is obviously that this power adapter PCGA-AC51 is just born with 64W, 4A and 16V that are accord with the Sony official specifications. With thus suitable output voltage and current, the notebook won’t run into poor contact or lack of power energy in the process of charging. Especially when the batteries are unavailable, the responsibility and effects are obviously.
About input voltage and power cord
As we have worldwide compatible switch mode and power cord of 3-prong, PCGA-AC51 laptop charger can take effect to cover all kinds of mains supplies and charging places. Thanks to this universal 3-prong plug, the adapter can adjust the charging conditions and work under a stable circumstance.