19.5V 4.62A AC power adapter laptop charger for Dell Inspiron 15 3520 3521 3531 3537 3541 3542 3543 4520 5520 5521 5525 553719.5V 4.62A AC power adapter laptop charger for Dell Inspiron 15 3520 3521 3531 3537 3541 3542 3543 4520 5520 5521 5525 5537