Hi. I have just bough a Fairphone6 and I am looking for a charger for it. I have 2 Samsung chargers and I have looked on the internet for others. All without exception say that the output voltage is 5V. However the guide (paper) provided with the phone says that the “limiting charging voltage” is 4.5V !
I am convinced that the chargers I have and all the others out there are compatible but before using them I want to be sure that they will not damage the phone. Does anybody have the answer and an explanation for this strange specification ?
Thanks in advance.
ps : I have asked Fairphone support but I am waiting for an answer (which I need quickly so that I can return one of the chargers I recently bought if it is not compatible).
That is the maximum voltage the phone is allowed to give to the battery. If you look a little bit lower at the “Charging Compatibility” row, it states the phone supports PD/QC4 charging of 27 W at 9 V, or ordinary charging of 10 W at 5V. The latter should be the relevant number for your Samsung charger, if it is USB 5 V it will work, just not as fast as the alternative types of USB.
If you want a faster charger you need to find one that says QC4 or USB PD.
I find it strange that such a specification is a document provided to standard users. It is also not very clear what it is as it says “Limited Charging Voltage” which seems to imply that is refers to the charger. But anyway.
Another question. One of my Samsung charger (“15W PD Power Adapter”, EP-T1510) claims to support PD : “(USB-C, PDO) 5.0V=2.0A, 10W or 9V=1.67A, 15W. Does this mean that I will get faster charging with PD ?
Yes, it should charge at “9V=1.67A, 15W” with that charger if the cable is suitable (as it probably will be if you use the original cable that came with it). It is not the fastest (there are more powerful PD chargers) but it will work nicely.
