Note that using an Apple laptop charger with its included three-prong charger cord will provide a grounded charge (no buzz), as opposed to Apple’s or any two-pr

Note that using an Apple laptop charger with its included three-prong charger cord will provide a grounded charge (no buzz), as opposed to Apple’s or any two-prong connector (or a third-party three-prong that’s missing the female grounding connector inside the charger-side plug).