[Zach Bas]

Hello and thanks for any assistance in advance!

The Problem: When I go into work I leave my phone in a lockbox outside my desk area for security reasons. I turn data off to preserve data. Throughout the day I will go out and check my phone for updates, turning the data back on. Through this method I will usually stay at a high percentage of battery (or so I think). However, if I decide to check on some games of mine, like Boom Beach or Clash of Clans, occasionally the device will shut off instantly. Today I caught a "Android System" message right before it went black. When I turn the phone back on, I will have a random amount of battery left (sometimes a drop of 30%, sometimes 60%, and sometimes more). Sometimes I will be able to play these games without the shutdown, but I haven't tested that lately.

Additional Info:
I have had my HTC Droid DNA for a little more than a year and a half. The battery life has declined, but still usually gets me through a day if I don't use it a lot (as is often the case during the work week). I almost always charge the phone overnight, which I have heard could be a problem. If I try playing games while the phone is charging, it gets hot and the charging light blinks, which I assume happens because the phone is too hot. I have GSAM Battery Monitor installed, but it hasn't been a help since the data resets with a phone restart. I have stock ROM.

Once again, thank you very much for any help rendered. I am considering buying and replacing my battery, but I would only do this as a last resort to save my phone. Any questions about my question (lol) will be answered quickly.

Zach

[B. Diddy]

Welcome to Android Central! If you don't play those games, does the battery seem to behave normally?

[aallison1882]

I'm in the same boat in regards to the phone randomly shutting off. It is super frustrating. I can handle a degraded battery life but it the random shut offs turn me from Dr. Jekyll to Mr. Hyde... I hate the fact that I can't trust my phone when I'm out and about.

Now that being said. The random shut off has never happened while on a charger. It makes me think that a component of the phone (maybe the battery, maybe the processor) can't handle high levels of processing anymore. I wish there was an answer. Either way, I am anxiously counting the days until the HTC One M9 is released.

[Zach Bas]

Sorry for the late response, I apparently need to change my notification settings.

B. Diddy: Thanks for the welcome! It recently happened utilizing a different app, Tinder in this case. However, otherwise it does seem to behave normally.

aallison1882: The phone doesn't shut off when it is on charger, just gets really hot when playing games while charging.

Thanks for the responses, I will respond much quicker in the future.

[B. Diddy]

That kind of behavior makes me suspect a bad battery. It's probably worth trying a new one.