starof80

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starof80
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  • Apple's MagSafe Duo charger not compatible with first-party 29W adapter

    elijahg said:
    A quick look at MagSafe Duo's specifications explains why the charger doesn't work with the older adapter.
    And as well as not telling us here, the later linked article also has no mention of the 29w power supply directly. And Apple's page saying nothing more than it's incompatible.

    LMFTFY: The 29w charger only deals with USB PD 2.0, and therefore whilst the 29w USB C PSU can supply the required 3a at 5v or 1.67a at 9v, it won't because the dock needs PD 3.0, and the USB PD 2.0 fallback  doesn't provide enough juice. A slightly more expensive voltage regulator that supported USB PD 2.0 and 3.0 in the dock would have dealt with that. Apple could have had a fallback to PD 2 or below, and had the dock charge one or the other items so that in a pinch (likely when travelling), you could borrow a super common USB A charger or use a USB A wall socket. I see USB-A wall sockets all over the place, yet to see a USB-C one. My Anker charging puck works just fine charging my iPhone X with a 5v/2a power supply, and I even have a 5w wireless charger that is slow but fine for overnight charging.

    This thing is becoming a bigger and bigger white elephant as each day passes.

    Yep. I thought it was a gimmick from the start, plus the 12 series is having serious problems. Glad I got my 11 in September than wait in October for the 12.

    williamlondon