[T-Mobile myTouch 4G Slide] Blue6IX:
Yea, that's how much I paid for my first one too - well, still paying for...

Did you get insurance with your plan? Not sure if it covers the battery - but it did come with it, so I don't see why not.

Maybe take it in-store and see if you can get a manager or someone who could swap your battery out? Not sure if it works like that.

I'd be leaning towards the battery being shot, or on it's way there.

If it's overheating a lot, then it's just damaging the battery further - but it's also a sign of damage to the battery itself. Some of the cells are burnt out or malfunctioning and preventing/blocking/impeding or somehow just jamming up the electricity transfer in and out of the battery.

If you do an insurance claim, (if you got it with your plan) they ship you a new phone and when it comes in, you send your old one back. Think you have like 7 days to decide if you want the new one or keep the old one.

That would at least give you two batteries to test back and forth and see if it really is a battery problem (but that's the most likely answer)

You might consider getting an aftermarket battery?

On my second phone I swap out between the two HTC batteries I have, and in my plan phone I have the Anker battery I got. The Anker never gets as hot as the stock battery (either one) for the same workload, and I can push the device with the Anker to do much, much more then the one with the stock battery.

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I did do an HTC warranty repair on my second device, and I had to ship it back, they fixed, and sent it back to me. Didn't take that long, less then 13 days (probably by a few days) I could look up my records and find out exactly how many days I didn't have it including my shipping to them - but once they had it, it was speedy service.

The HTC people were an absolute pleasure to deal with on the phone, extremely helpful and taking the time to patiently answer all of my questions or look up accurate answers if need be (and they had to a few times, but you could imagine the grilling of questions I gave an HTC rep since I was on the line with them already)

Definitely seperated themselves from the vast majority of companies i've dealt with for customer service issues (beyond phones into other stuff too)

So past making some awesome tech the people behind it have been fantastic in my experience.

(even if they do make a ****ty battery they should be ashamed of - phone company, not a battery company, but the quality of the battery is way out of spec for the device it's in )

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Sorry to hear about your troubles, but I have a feeling that people are going to start following you who have been using the stock battery for as long as you have.

It generates too much heat, is too inefficient, and that makes it break down faster and die quicker. The more it dies, the less efficient it gets, and the quicker it reaches the end of it's service life.

If I were in your shoes, i'd call the battery shot and start worrying about what that amount of heat is doing to the device itself, specifically its Snapdragon processor. Heat is enemy numbers 1, 2 and 3 for the processor, especially one pushing the limits of it's design like the Snapdragon does.

If you are running an OC kernel, i'd stop that immediately. Hopefully you aren't or haven't been.

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I'd say go to a T-Mo store and start there, do an HTC direct warranty replace as a last resort and consider an aftermarket battery.

The Mugen batteries are unquestionably higher quality then the Anker batteries, but much pricier too.

The Anker battery is far and away better then the garbage stock battery - so even that would be a step up and it's what I run and like using.

(when I can afford to i'm gonna step up to the Mugen battery and gift the Anker to my second phone)

If I were you i'd overnight an Anker battery and stop in a T-Mo store tomorrow to see what your options were and how they were going to make it right for you.

Worst case is an HTC warranty, it's still in the warranty period, the phone hasn't been out for a year yet. I know that's the least desirable option, but if you do have to go that route make sure to mention how the heat has probably damaged the phone itself and they should have a tech or two go over the whole thing with a fine tooth comb. That heat against the processor has really shortened the lifespan of your device.

I say this because sometimes I put down my second phone and turn it off to save it from the heat of a functioning stock battery - a broken one would be a lot more of a concern.

Wish I could say something more positive, but while you are in warranty and have options is not the time to ignore issues that could bite you later.

Edit:

Especially since this is clearly not your fault - you are using the battery provided to you with the device itself, and that is now malfunctioning. You didn't do anything to cause this, it's either dumb luck with an even worse battery then normal that HTC themselves provided you, or you are the first of more who are hitting the end of service life on the battery the device came with.

It sucks that the worse it gets, the more quickly the problem gets worse. It's a vicious cycle that there is no way out of, because just using the battery breaks it more.

Even if you have to be without a phone for a week because you have to ship it back to HTC (worst case scenario from your point of view, since you have no device in the meantime) they'll make it right for you. This device is too awesome, and costs too much money, to settle for something that's defective - especially since it's not something you did, just the way it came.

Let's just hope for everyone's sake you got a particularly bad battery and this doesn't turn into an epidemic. Because the overheating of the battery basically breaks it more and more quickly, this is about the right amount of time for them to start crapping out if you got it within the first month of launch.

(based on the ludicrous - yet identical - amount of heat i've been experiencing from two stock batteries is where i'm framing this fear from)

Edit again:

Sorry, noticed you said you cancelled insurance, i'm pretty tired, but i'll leave what I said in case it helps someone - I wouldn't hesitate to call up HTC and file a manufacturers warranty claim, it should be covered since it's their branded battery that failed. I definitely give them a very high rating for customer service from my experience - I have nothing but good things to say about them to anyone who will listen.