Charge discharging when charging and drains the battery completly dry

I have this similar problem with my Samsung s5...I have tried all means it couldn't work not until 1day that I charged it with the back cover removed...till now (going to 3months) I didn't experience such problems again

"I think i have the Same problem with ms 3GS 32GB. I wanted to charge my iPhone and when i connected it with the dock-cable it makes a short ""beep"" and the display gets dark. My repair-service has changed the battery 4 times and also the dock-connector. It don't charge. I tryed another service and they told me: the logicboard is broken. ( the fuses are o.k., i checked them )

And finally the said: there some non-origin Apple-Parts build in. We don't fix it. Because of the warrenty. Warrenty? For a 3,5 Year old iPhone? I'm not interested in a,I want a working phone.

But that's another story...."

"I have same problem with my Iphone 5, after water damage I opened and cleaned the main board, everything is working but it is discharging while charging. when I plugged in the charger iphone shows Lightning symbol like it is charging but in fact, percentage goes down.

Tried to replace Battery and Dock connector - but didnt help.

Anyone know what on board can be the reason for this?

Thank you.!"

I'm having the same problem! My s3 got water damaged but I'm not sure if thats anything to do with the problem but its charging really slowly and the battery pecentage go down even when charging and it stays on the same pecentage for ages . It only charges fully when I don't touch or use the phone. This same problem happened before a few months ago but I stopped charging it for a few days and used a universal charger and I even tried a new usb cable and battery they didn't work. But after Using the universal charger for about a week I used a decent charger my brother had for his Plus 1 phone and it started working again. But the problems came back and its not the cable or battery I've even cleaned the port. :( I can't return it back because I've had it for months and it has no warranty

"I have this problem too. Maybe it's an issue with the dock because the iPhone charges when I plug into my computer.

Update (04/04/2016)

I changed the part that plugs into the wall -problem solved."