Should I get my iPhone battery replaced?

When I plug my iphone 3gs in with the wall charger sometimes it won't charge. There will be no vibration or chirpy sound or the thunder symbol inside the battery. I have to keep unplugging it and plugging it until it vibrates meaning it is charging. Is it a bad battery that's causing this?

It could be your battery's problem, but I'm more positive that it is your charger's problem, so try changing your charger not your battery.

Yes its the battery that's the problem. But i don't think you can change just the battery

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