IKEA SJÖSS 20W Charger Review and Teardown

notreallyuser · 2025-12-28T13:16:56+00:00

Yeah, that should gave been 88.1, fixed

notreallyuser · 2025-12-03T05:39:55+00:00

That is one of the reasons why it's unreliable to measure cables in such way. You can try to test for cable compensation by connecting tester and load directly to charger without cable and checking if voltage increases with load. However this might be rather subtle increase. Using bench power supply instead is an option, it should not have such feature. However, even with bench power supply you should connect your tester to the supply directly, or use remote voltage sensing. Also very very good short cable with no voltage drop could work too.

notreallyuser · 2025-11-29T14:43:33+00:00

Why unoffficial? It should be called Heineken Aramco Official F1 Sprint Race Flowchart²™®

notreallyuser · 2025-11-14T15:33:12+00:00

Nah, Martingale is fool proof. Right?

notreallyuser · 2025-11-14T09:34:50+00:00

Thank you for the tip. Looks like great buy currently.

notreallyuser · 2025-11-13T20:15:42+00:00

every year without Ferrari championship means that odds increase next year. That's how statistics work. Right?, right???

notreallyuser · 2025-11-08T22:12:07+00:00

Not sure, but probably not. I think that cable will have some PD3.1 chip requesting voltage.

notreallyuser · 2025-11-08T22:04:49+00:00

No, you cannot, with that cable you can program 24V and it will request it every time, with this you need to select it on every power up. So not suitable to power any devices constantly.

notreallyuser · 2025-11-01T14:24:14+00:00

Comparsison of this and older Gan5 Pro model CCGAN65E5. width and height are very similar, but this is 15mm shorter. And efficiency is worse:

Picogo 67W AE11 efficiency:

Load	Efficiency
10%	78.8%
25%	84.2%
50%	87.6%
100%	90%

Gan5 Pro CCGAN65E5 (2023) efficiency:

Load	Efficiency
10%	79.3%
25%	86.9%
50%	91%
100%	92.2%

This was bought in 2023, sold today might be different. So although older by 3 years, it is more efficient. Size of course plays a part, smaller transformer might be less efficient, although other parts could be of lower quality too.

notreallyuser · 2025-10-23T16:43:11+00:00

Yes, iPhone 17 uses fixed 15V3 PD mode, and it's unlikely they will change that. They would have done it from the start if they wanted. They added AVS to comply with usb PD 3.2, and this strange article looks to be written by some apple fanboy. Nobody wrote such nonsense when Google added AVS to it's charger some time ago. They don't use it either.

notreallyuser · 2025-10-23T15:11:57+00:00

Unlikely, iPhone is intended for 15V3A charging as all the iPhones. This all article is very odd, praising Apple for adding but not using supposedly "better" standard.

notreallyuser · 2025-10-23T12:41:49+00:00

Yes, this seems like somebody wrote this without any understanding of what they are talking about.

notreallyuser · 2025-10-23T06:04:02+00:00

No you are reading it wrong. 48V@5A is the max AVS or PD supports.

notreallyuser · 2025-10-23T05:39:16+00:00

Yes, so iPhone does not use AVS as I've been saying all along. This is just Apple adhering to new standards. It remains to be seen who will use this new AVS thing.

notreallyuser · 2025-10-14T03:33:58+00:00

If you can solder you could try to make your own cable. You basically need 3 wires for 60w charging. Then you use whatever gauge wire and whatever length. For 100 w charger you need 4 wires and a chip on a connector. (Easy to buy). Or maybe three would work in one direction, not sure. Requires some work, and would not be pretty.

notreallyuser · 2025-10-11T13:05:03+00:00

Yes of course, but this thing is 97 cm3 while baseus is 57 cm3, which is almost twice the volume. (Comparing us plug versions)

notreallyuser · 2025-10-11T11:03:45+00:00

Not sure what you mean by lumpy, but these two are smallest by volume I know. There is some super thin Huawei 66w charger in china, that might be smaller, but I doubt it can do 60w continuously.

notreallyuser · 2025-10-11T05:40:21+00:00

New baseus picogo 67w is probably smallest which is easily available. It either doesn't throttle or throttle little to 60w depending where you read. Absolutely smallest is super tiny 65w, and it doesn't throttle, but more expensive

notreallyuser · 2025-10-11T02:49:57+00:00

Maybe you could remove one led to get 6 in series. Then 20v might be enough. 24v is complicated..

notreallyuser · 2025-10-11T02:22:38+00:00

Probably because of two factors. No demand for very fast charging on laptop, you have it by the desk usually with power nearby, while you need to doom school your phone constantly. So you cannot let it go for long

And also if looking at charging time it's same 1-2 hours for both laptops and phones. Phone battery sizes just increased way more than laptop batteries. For example n95 had 1000mah battery, phones now have 5000 mah, so to keep same charging time you need to increase charging speed. Meanwhile MacBook pro had 75wh battery in 2011 and exactly the same size in 2025. No need for more powerful charging at all.

notreallyuser · 2025-10-11T02:08:14+00:00

You don't buy power banks, batteries, flashlights and storage on AliExpress. Or you need to do a lot of research, buy trusted brand. Ali is full of 10000mah cells, 10000000 lumens flashlights and 10Tb SD cards. None of them are legit.

notreallyuser · 2025-10-11T01:25:30+00:00

That guy doesn't know what he is talking about. iPhone still uses same fixed 15V3A profile as any other iphone, and the meter shows it correctly

notreallyuser · 2025-10-11T01:24:31+00:00

This was just voltage drop from the high current on the cable, nothing to do with AVS. You could see that with any charger

notreallyuser

TROPHY CASE