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| ▲ | BobAliceInATree an hour ago | parent | next [-] |
| Apple sells a 3-pin extension cable US Version: https://www.apple.com/shop/product/mw2n3ll/a/power-adapter-e... |
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| ▲ | pxx 2 hours ago | parent | prev | next [-] |
| There are grounded duckheads for this purpose, e.g. https://amzn.to/4cnzuef (note out of stock. I guess your best bet is to use a UK duckhead, but half of those have a dummy ground...) if you take the plug part from the brick you'll note that there's only two pins but the button-like thing is a ground as noted in a sibling, the power adapter extension cable does plumb the ground through (https://www.apple.com/shop/product/mw2n3ll/a/power-adapter-e...) |
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| ▲ | bombcar 2 hours ago | parent | prev | next [-] |
| I don't know if this link will work - https://www.chargerlab.com/wp-content/uploads/2022/06/202206... but that metal round pin thing is a ground; and the three-prong cable connects to it. |
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| ▲ | Tsiklon 2 hours ago | parent | prev [-] |
| The extension cable they used to include in box with the computers, it has the third pin for the charger brick connector which is wired to ground |
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| ▲ | 15155 2 hours ago | parent [-] | | There's zero chance that the DC ground in the laptop is tied to earth ground in the charger: they use LLC resonant converters and flyback converters (depending on vintage) - an earth ground tie would defeat the purpose of these isolated topologies. |
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