Is this battery problems or charger or phone?

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So one day, I was left at my friend's house without my normal, Sidekick Charger.
My friend had an HTC Sense charger and it seemed to fit my Sidekick, and without thinking twice, I used it for the night.
My phone charged ti 100% and I unplugged it and used it throughout the next day.
It died and I tried charging it with my normal charger and it would randomly stop charging and continue charging and then stop and repeat.
It's gotten worse the past week to the point I can only charge it halfway at night.
I'm running on the new GOV32 if that helps.
And I'm using the normal Samsung charger. And my phone is only about a year and a half old.
So my question is, what's causing the problem? The phone itself, the charger, or the battery?
I'd like to know.. cause school is coming soon and I don't wanna be that loser not using an Android.. Especially in a technology academy!

Chargers have given me this problem before. Get a new one, worth the piece of mind and investment its relatively cheap as well.

Sent from my SGH-T989 using Tapatalk 2

Originally Posted by TheLastSidekick

Chargers have given me this problem before. Get a new one, worth the piece of mind and investment its relatively cheap as well.

Sent from my SGH-T989 using Tapatalk 2

I tried using my friend's that he bought off the internet, and he has a Sidekick too.. and it still doesn't work..

Weird. Take out the battery and hold the power button for 10 seconds and try it again. (This is known as power draining)

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Okay, so I did this.. and it still doesn't work.. What now..?
I tried 5 times on 2 different chargers.

could be your charger port is loose. Not sure what you could do other than a reolacement

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