Apple 5W Adapter Knock-offs: The Colorful A1265 Tear-Down

By published

Another Troubling Area

If you thought the taping flaw was bad, just wait: the secondary winding goes all the way to the primary side’s terminals where a nearly identical story repeats. Multiple bulges in the primary winding caused the secondary’s turns to slip to the sides. A particularly large bulge near the end caused the secondary’s top turn to butt up against the primary winding’s wire. In a properly made transformer, this part of the wire would be sleeved or otherwise double-insulated to prevent such manufacturing flaws from becoming an issue.


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Are Counterfeit A1265 Adapters A Good Investment?

Regardless of how convenient sub-$2 adapters might be, I cannot think of any good reason to recommend these death traps. If you do use one, treat whatever you plug into it as bare wire mains voltage.

The good?

  • Shouldn’t fall apart accidentally
  • Surprisingly fault-tolerant

The Bad?

  • Can barely provide 500mA at 115VAC and 750mA at 230VAC
  • Output ripple + noise in excess of 600mV at best
  • Poor output voltage regulation against load and AC input voltage

The Ugly?

  • No isolation slots to keep low voltage and high voltage separate
  • Isolation failure at the USB shield at merely 1kVAC
  • Non-Y-class EMI suppression capacitor failed at 1875V
  • MULTIPLE TRIVIAL YET POTENTIALLY LETHAL TRANSFORMER MANUFACTURING FLAWS


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Daniel Sauvageau
Daniel Sauvageau is a Contributing Writer for Tom's Hardware US. He’s known for his feature tear-downs of components and peripherals.
31 Comments Comment from the forums
  • sitehostplus
    This is no joke. I once fried a mp3 player in a usb wall charger before. So I now only use either my computer, or a geniune apple charger.
    Reply
  • laura.morris.ga
    Thank you for this incredibly valuable information. It's nice to see someone out there looking out for the regular guy who doesn't have this level of knowledge about electronics.
    Reply
  • omegaman2
    This manufacturing, and marketing of imitation goods, and in this case electronic products can have very serious consequences, to the point of death, or serious injury. Thank you for your awareness, and knowledge about chargers that are not worth saving a couple of dollars.
    Reply
  • Lutfij
    In my case, I'd wait to see what folks had to say about it so they would be my guinea pigs, of sorts. In most cases, I stay away from off quality hardware.

    Thank you for the write up though!
    ;)
    Reply
  • canadianvice
    One of my critical rules for buying china: nothing connected to direct wall power.

    I do have one speaker lightbulb, but that's not powered when I'm not present, and it seems to have come from one of the better plants. Obviously, it's also less of a problem since I don't go out of my way to touch it on a regular basis.
    Reply
  • Kennyy Evony
    how about, listing an alternative without all the flaws? Complaining does not fix anything. List an adapter without all the flaws that costs exactly the same for people to buy? Wouldn't that be a better article? Same price, a lot less risks for consumers? win?
    Reply
  • TMTOWTSAC
    20566315 said:
    how about, listing an alternative without all the flaws? Complaining does not fix anything. List an adapter without all the flaws that costs exactly the same for people to buy? Wouldn't that be a better article? Same price, a lot less risks for consumers? win?

    The title and description seem to imply that this is the first of several reviews to come. Since this first product presents an outright safety risk, I take zero issue with presenting it now rather than collating all results first. As far as producing a better article, you are presuming an alternative meeting your criteria does actually exists. While I have no doubt quality 5W adapters can be found cheaper than Apple's ($19 list price at Apple) I would be shocked if any of them could be found for $1.50.
    Reply
  • razor512
    20564820 said:
    This is no joke. I once fried a mp3 player in a usb wall charger before. So I now only use either my computer, or a geniune apple charger.

    I fried mine also, but with a quality charger, Some MP# players do not play nicely with quickcharge 2.0 and 3.0 chargers.

    Here are the photos of mine after it failed.

    Funny thing was that the battery was perfectly fine, the protection circuit kicked in and cut the output and input to the battery for a few minutes, then it self-reset and the battery continued to work fine (it now runs a flashlight).

    https://imgur.com/a/aOLQr
    Beyond that, I have an old DIY USB charger that works really well, and has the lowest noise of any of the OEM chargers that I have used so far.

    It is basically a USB port wired to the 5V rail of a 550 watt power supply. Even when charging my android tablet at 2 amps, the voltage is completely stable at 5V, and those cheap 5V amplifier circuits can run from it without filtering while on standard chargers that come with smartphones, will have lots of noise.


    Reply
  • alextheblue
    20564820 said:
    This is no joke. I once fried a mp3 player in a usb wall charger before. So I now only use either my computer, or a geniune apple charger.
    Half my family uses Apple hardware and OE Apple accessories. The failure rate on the smaller Apple charging blocks is higher than I would have expected, given the cost. Since they have been conditioned to only use Apple accessories, I bought a couple of them the much larger Apple charging blocks you see used for iPads, to replace failed compact Apple blocks. Meanwhile I primarily use high-end third party chargers.
    20566658 said:
    I fried mine also, but with a quality charger, Some MP# players do not play nicely with quickcharge 2.0 and 3.0 chargers.
    That depends on the charger. Just because it supports QC doesn't mean it is guaranteed to have issues like that. I've got a 2-port 39W (combined) Anker charger that supports QC 3.0 but it also supports what Anker calls PowerIQ. Works great with anything I've thrown at it, and I also use it with a 10W Qi mat.
    Reply
  • Daniel Sauvageau
    20566315 said:
    how about, listing an alternative without all the flaws? Complaining does not fix anything. List an adapter without all the flaws that costs exactly the same for people to buy?
    As the intro says, this adapter (hopefully) sets the low bar. I'm not "complaining" about the low quality, I am exposing it to drive awareness of how dangerous or even potentially lethal these cheap generics can potentially be. Increasing awareness reduces the number of people who will let themselves be tempted by suspiciously inexpensive adapters of questionable origins. Fewer people buying dangerous adapters will hopefully reduce demand and sufficiently reduced demand could potentially reduce offer. No awareness would allow propagation of these death traps to go completely unchecked.

    As for suggesting better quality alternatives, as TMT already wrote, I seriously doubt there are any decent quality adapters around the $2 mark or at the very least, the chances of stumbling upon one are slim. There was an intro story to this series that was supposed to come out first but some publishing pipeline hiccups delayed it. I have about a dozen sub-$5 adapters in my presumed horror box and I'm not expecting them to achieve a passing grade. I also have a few $10 adapters which I'm hoping will at least get most of the way to a passing grade. I'll get to them in due time.

    Right now, I'm half-way done testing a fairly promising aftermarket one (almost perfectly flat 5.06V from 0A through 8.6A regardless of test conditions with less than 20mV or RMS noise) but it is ~$25, so I'd be disappointed to get anything less. The next one after that will be a ~$10 adapter from a rising one-stop-for-everything home brand that I haven't taken out of its original box yet.

    I'll probably rotate sub-$5, ~$10 and $20-and-up adapters until I exhaust my inventory for a given tier as exhausting my "horror-class" adapters first might get depressing. It also increases the chances that I may have something worth recommending once in a while, albeit at a higher cost.
    Reply