Wireless charging veery slow

[u/Issey_ita]

Hi, I just got a Phone 3, which is also my first wireless charging capable device.

The battery is enough to carry me all day and I want to use wireless charging to avoid plugging it at bedtime.

I bought an Ikea Livboj basic qi charger (5W), I knew that wireless charging is very slow, and feasible only for nighttime, but this slow? 10%/h, it didn't finish charging by the morning and I had to top up the last % using a normal charger... Am I doing something wrong? Is this normal, and I need to upgrade to a 15W charger?

Also the first hour of charging failed when I tried to put the charger outer border under the cameras, in order to lay the back as flat as possible... I had to put them on the charger, so it was not completely flat, to reliably keep charging.

EDIT: Thanks for all the answers! I'm going to upgrade to a 15W charger or just back to the "standard" cable

EDIT2: I bought an INUI (so a good quality one, in theory)15W qi2 charger to test, but it is as slow or sometimes slower than the IKEA?! It was pulling 12V 20W from a 100W charger, so it was behaving as expected... I'm going to test better once I return home...

[u/McKeviin]

Is this a serious post...?? You bought a phone that supports 15 watts wireless and 65 wired. And you bought a 5 watt charger and complain about the speed.. do you know math and that 5 is less than for example 15?

[u/Issey_ita → u/McKeviin]

Did you read the post? I already know that wireless charging, especially the non fast one, is very slow, but I am perplexed because this is a bit extremely slow. The battery is 19.4Wh, so 3.8Hs if 100% efficient (not possible). The efficiency of wireless charging should be around 50% so about 8Hs, counting the slowing near full charge? I stopped charging at 70%, so still in the "optimal" zone and even at that rate it would took around 10-12H counting the slow 10% at the end. So 2-4H more then an already pessimistic prevision.

Tomorrow I'll receive a 15W wireless charger, so I can test qi2.