Charging problems!

[slave]

Okay, this is weird. I have a 2.4 mAH bedside charger. I use a cable with an adapter. I plugged it in at 71% last night. I woke up, it's 83%

The first night, same thing, I plugged in around 65%, woke up at 83%. Same charger, different cable.

I am using this adapter on my micro USB cable. It seems to take a long time to recognize a charger, and says it's slow charging.

I also found that when connected to a speed charger with this adapter, it charges slow. I have a USB A to USB C cable, and it does charge rapidly with this charger.

I am wondering if the adapter is bad, the cables are bad, or my phone is bad.

 

[sambartle_uk]

The obvious first test: Does it charge properly with the original adapter and cable? If so it's not the phone.

This pretty much proves the micro cable or adapter are a problem:
"I also found that when connected to a speed charger with this adapter, it charges slow. I have a USB A to USB C cable, and it does charge rapidly with this charger."
Try the adapter with some other MicroUSB's to figure out which is responsible?

I've been trying to figure out how it determines what speed to charge at..

I have a current measuring device that can also do things like shorting or cutting the data wires.. With either shorted or cut data wires the phone reports "Charging Slowly" and pulls 500-600mAh max.
With a normal MicroUSB into an Anker iQ USB power bank.. it shows "Charging" and uses 1-1.5A..

I've so far not managed to get "Charging Rapidly" from anything other than the original charger.

 

[scgf]

I'm lucky - I have a couple of AC power outlets with usb sockets built in, an iPad charger and a decent QuickCharge 2.0 car charger and all show 'Charging rapidly' on my 5x lockscreen. Charging really is rapid too! I sourced some USB A -> USB C cables on ebay and they came from China, so nothing special there.