Mine charges fine to 100% overnight, stays there for 1 to 2 hours, then starts discharging while still on the charger. In the morning, I often have 80% to 90% battery remaining. I tried the battery calibration a couple times, and there was no change.
This started immediately after the AT&T update to Android 5.1. I never had an issue before with the same charger and cable!
I switched to the OEM charger and cable, and the issue goes away. Change the cable back to another one and it starts discharging again. My wife's M9 on Verizon on Android 5.1 has no issues with the same charger and cable.
So, I have some questions, both of which I'd love answers for if anyone knows!
1. What's magical about the HTC cable? How can I get a 6' long cable that will work? What do I look for?
2. Why does Verizon's M9 not complain about that non-OEM cable, but mine does? I can return and ask for a refund, but at this point I have no idea how to explain the behavior, to even know if the cable is faulty.
3. Why did my phone have no issues with this cable (even with a non-OEM charger) while I was on Android 5.0?
So far, HTC can't answer my questions, so I turned to the internet!
Thanks for any insight!