Is an Ungrounded Power Adapter Dangerous?
I accidentally damaged the MagSafe power connector on my mac, so I went looking around for a replacement cord. I found an aftermarket 85W MagSafe power adapter on e-bay that was actually cheaper than what the cords were selling for. The item description said:
Why should you not use this adapter with an actual computer? Good question. It is not grounded. That means that any accidental discharge of static electricity from you to your machine while plugged into this adapter may result in ESD (Electrostatic Discharge) damage to your computer
I don't understand that. Is this saying that my computer is more vulnerable to ESD when it is plugged in to the wall than when it is running off of battery? ESD comes from me, not the wall. Besides, my MacBook comes with a two prong plug that isn't gounded. Maybe it has to do with the internal circuitry of the power adapter.
My question is, is the ebay seller correct, or can I safely use the power adapter?
Is this a good question?