Be warned: some Qi2 devices don't have magnets and it can be hard to tell

26 August 2024
The Magnetic Power Profile is optional for Qi2 and WPC's messaging about branding is confusing.

Sort by:

  • c
  • christhomasap
  • gqs
  • 17 Dec 2024

This is outdated and incorrect. The WPC has since specifically clarified that devices marketed as Qi2 must have magnets, and the specifications of those magnets is mandated by the WPC

    Zaini, 01 Sep 2024Qi2 is improve version from qi charging with main different... moreExactly the important point "Useful in some situations"

    That is why I compare it with junk-food. Very convenient occasionally, but bad for the health if used daily.

      • Z
      • Zaini
      • XNg
      • 01 Sep 2024

      Anonymous, 26 Aug 2024Other than the MPP, is there any meaningful difference betw... moreNot limited but increase from previous 7,5 watt qi charging. MPP mean your device will align to charging coil perfectly, improve speed and safety from unnecessary heat distribution.

        • Z
        • Zaini
        • XNg
        • 01 Sep 2024

        Xenotyro, 26 Aug 2024Qi2 simply for wireless charging is not very interesting gi... moreQi2 is improve version from qi charging with main different is magnetic ring which enhance safety, speed, and more device compatibility. Although wireless charging not popular but useful in some situation.

          Anonymous, 26 Aug 2024I have used 67w fast charging daily for the past year and i... moreIf you plan to get a new phone every year, well then you are fine.
          Any new owner will be the one that get the consequences of the fast charging.
          If it is done preventing the battery from getting really hot, the decay will be tolerable the first year.

          Start reading some of the interesting stuff here
          https://batteryuniversity.com

          Obviously you will not notice any difference from day to day, and obviously there will be a decay even with slow low current charging over a year....

          If you took three identically phones and had one stored optimally turned Off. One slow charged daily and one fast charged daily, and then measured the remaining capacity the three batteries could hold, there will be a significant difference

          There are a lot of other stuff that matters too like the surrounding temperature, how fast the discharge is, and how deep the discharge is and how fully charged it gets, though there are circuitry that try to prevent the worst effects of the later two....

          As an example this could be useful reading
          https://batteryuniversity.com/article/bu-808-how-to-prolong-lithium-based-batteries

          Also read at the least thee summary of this one
          https://batteryuniversity.com/article/ultra-fast-charging

          Battery users have a strong desire to prolong the life of a battery and here are recommendations of what the battery custodian can do:

          Charge at a moderate rate. Ultra-fast charging causes stress. (NiCd is the only battery that can accept ultra-fast charge with minimal stress.)
          If possible, do not fill Li-ion to 100 percent state-of-charge. (Only lead acid requires a fully saturated charge to prevent sulfation.) Most chargers charge the battery fully.
          • Prevent elevated temperatures. Keeping Li-ion at full charge and elevated temperature causes more stress than cycling under normal conditions.
          An ultra-fast charge fills the battery only partially; saturation charge completes the charge at a slower pace. Go easy on the saturation as Li-ion does not need a full charge.

            • Y
            • YMMP
            • Qu1
            • 28 Aug 2024

            DemonSpeed, 26 Aug 2024My last three phones had wireeless charging and I never ise... moreI use it when my phone won't let me charge with a cable because there's water in the port.
            It also would be useful if the port goes or is loose.

              • ?
              • Anonymous
              • JKN
              • 27 Aug 2024

              OpposedScroll75, 26 Aug 2024a loose USB port is a rare, almost impossible occurrence fo... moreIDK man, over the last 10 years a busted USB has been the number 1 complaint we got on the various company phones issued, over all use cases.

                Qi2 simply for wireless charging is not very interesting given there are various proprietary implementations from manufacturers with faster speeds etc.

                Of more interest is the potential for accessories with the Qi2 MPP, either to dock a device for at-home use with a desk setup, or for possibilities such as camera attachments, battery packs, fans etc.

                  EskeRahn, 26 Aug 2024Well there are pros and cons of both using wired and wirele... morea loose USB port is a rare, almost impossible occurrence for anyone who actually takes care of their phone

                  The only people who get their USB ports to be loose are those who plug their phone in with tons of force or use their phone while it's charging

                    • ?
                    • Anonymous
                    • 0p}
                    • 26 Aug 2024

                    EskeRahn, 26 Aug 2024Well there are pros and cons of both using wired and wirele... moreI have used 67w fast charging daily for the past year and it hasn't made any noticeable difference to my phone battery. Anyone who claims fast charging is killing their battery must be using a phone with poor battery tech like iPhone or Samsung.

                      • ?
                      • Anonymous
                      • IbL
                      • 26 Aug 2024

                      Other than the MPP, is there any meaningful difference between Qi2 and the original standard? It looks like charging is still limited to 15W and I'm not sure what other improvements there could be.

                        DemonSpeed, 26 Aug 2024My last three phones had wireeless charging and I never ise... morePeople have the wireless chargers in their cars built in from the factories. They just charge like 10 minutes on them or something. Also there are people who have the monitor stand with the wireless charger and have the phone on them when they are at work in office and so on.

                        I dont think anyone use the wireless to charge any device from 0% to max.
                        I had the wireless on my Asus Nexus tablet and i used the wireless cause the micro usb plug got bent or something as to get the tablet charging from cable it needed to be in some angle. So the tablet got one year more life to use with the wireless charging

                          Do any of them even have magnets ? I would think they have just metal ring in the back so the power bank will have the magnet to be stuck on the phone back.

                          So if the phone dont have that metal to have the magnet stick to then you can just buy a sticker that have metal plate

                            Anonymous, 26 Aug 2024"Wireless" charging is a meme. It's slower a... moreWell there are pros and cons of both using wired and wireless...

                            Wireless is obviously easier and does not give the usb-plug any wear. (A usb-plug getting loose of the board it is soldered on, is a VERY common fault on mobiles!!)

                            On the other hand wireless 'boils' the batteries, as the waste energy generates heats that goes into the phone and battery (unless the charger has sufficient active cooling). LiIon battery get their overall life span shortened when charged at over about 30°C.

                            So wireless should be done significantly slower (lesser current, lesser waste heat) than wired.

                            Fast charging is also bad wired, but much worse wireless.

                            I usually see fast charging and wireless charging like junk food: Occasional usage is fine, but bad for the health if used daily....

                              • D
                              • AnonD-1168586
                              • CbK
                              • 26 Aug 2024

                              DarlingYext, 26 Aug 2024Some phones have 50W-100W wireless charging and their charg... moreSome car has super capacitors, other aeroplanes has antennas so good they don’t need batteries. Lithium is nex to dark magic, ELON!

                                Useless feature honestly good only when you break your cableň charger or charging port.
                                Rather will fix my charging issues than use a wireless charging because it makes giant pressure on battery by overheating it. And is painfully slow in most cases.
                                No thanks

                                  When people i mean humanity have zero problems and issues they love to create some.
                                  How clever is that.
                                  Making a probles and issues to ease your life.
                                  Just LOL.

                                    • M
                                    • Minu
                                    • ter
                                    • 26 Aug 2024

                                    Invetor, 26 Aug 2024speaking of wireless charging, does wireless charging work ... moreIt should, as it was since the Galaxy S3 and Lumia 920 series.

                                      • M
                                      • Minu
                                      • ter
                                      • 26 Aug 2024

                                      Anonymous, 26 Aug 2024I have been charging my 12 mini since end of 2021 with a Ma... moreAnd my 7-year-old Nokia 8 lasts up to 2 days on average with a "measly capacity", significantly larger in terms of battery capacity, compared to the iPhone Mini series.

                                      It's definitely the build materials that affect the feasibility of wireless charging.

                                        • M
                                        • Minu
                                        • ter
                                        • 26 Aug 2024

                                        GregLu, 26 Aug 2024I use it daily since my Samsung S7, please don't gener... moreIt's definitely fast charging or throttling, and not lower wattage wireless charging, that produces heat.

                                          1 of 2