android temperature warning

Protect your device with Temperature Guard

Check out the other slides to learn more about this app.

android holo design

Holo Design and an Actionbar

Using ActionbarSherlock, this app features an Actionbar while it still supports android 2.1.

android battery health

Learn how to keep your battery healthy

Click on this article to read about battery temperature and how you can extend your batteries lifetime.

android battery health

Download for free at the amazon app store.

Login with your amazon account and install this app in a few seconds.

android battery warning

Use this app to prevent your android from overheating.

Travelling or Living in a hot region can be stress for your smartphone. Make sure to keep its battery cool.

android temperature guard warning

This app treats your system resources with care.

This app is constantly tested with various tools to ensure best quality by using little system resources.

Dienstag, 21. Oktober 2014

Battery Temperature Guard 2.9

Battery Temperature Guard Update
Akü sıcaklık koruma
Akü sıcaklık koruma

I just uploaded the new version of Battery Temperature Guard to the amazon app store. The play store update will be live in a few hours.

This new version (3.0) features a lot of small bugfixes and a turkish translation! Please help me to make this translation better! Write me an email if you do not like it, my turkish is not the best ;)

If you want to translate this app to your native language, please read this post about it. After registering at localize, please write me an email, so I can verify your account and you can start translating.

Dienstag, 14. Oktober 2014

Handy Akku explodiert im Bus

handyakku china explosion
Der Handyakku sprüht Funken

Tja, bei diesem Video hätte wohl selbst Battery Temperature Guard nicht mehr helfen können. Das Video von einer Überwachungskamera in China zeigt einen Bus in welchem eine Frau gerade ihren Handyakku wechselt. Direkt danach fängt das Smartphone an Funken zu sprühen und zu brennen. Wow :)

Battery Temperature Guard warnt euch, wenn die Temperature zu heiß wird. Auf dem Video sieht man leider nicht genau wie lange der Akku schon im Handy is und ob das Handy eingeschaltet wurde. Eventuell hätte diese kostenlose App der Frau das Handy retten können ;)

Dienstag, 23. September 2014

An app that makes your phone scream when falling

Today I wanted to show you one of my new apps. This app has the ability to let your phone scream when falling!
That's it! It will not protect your device, it is kind of useless, but it is damn funny!

app that makes phone scream when falling
The Phone Drop Detector
phone drop detector
Android Phone Drop Detector

I could not find a good name for this app. First I wanted to name it Phone Drop Detector, then Phone Drop Scream, or Falling screaming Phone. Well whatever :)

Do you have a cool name for this app? Write me!

Check out this post about  the Phone Drop Scream App. Thats what I called by Phone Drop Detector.

Mittwoch, 17. September 2014

Android Temperature Widget

Android Temperature Widgets

Battery Temperature Guard 2.8 currently features two different widgets. If you are missing a special widget, or if you are missing a feature, please contact me. You can read the changelog with the latest news for the app here. If you are having any problems with this app, please read the FAQ about Battery Temperature first. After this, feel free to contact me :)

The temperature widget

This widget will show you the current device temperature of your android smartphone. When tapping on the widget, it will open the app Battery Temperature Guard. You can customize Celsius and Fahrenheit scale. To customize the textsize of the widget, please follow this guide.

android device temperature
Android device temperature Widget

The battery details Widget

This widget features three flat icons for each temperature, voltage and battery level of your smartphone. The battery level indicator icon will present the charging state of your battery in percent or a charging icon when charging. 
android battery widget
Battery Widget from Battery Temperature Guard

How to add a Widget to your homescreen?

This depends on your android version. The workflow is a little bit different.

On Android version 2.2/2.3

  • Go to your Homescreen
  • Do a long click or press menu and choose "add"
  • Choose Widgets
  • Scroll down and choose the widget you want to add

On Android version 3.+

  • Go to your Homescreen
  • Do a long click or press the "+" Button
  • Choose Widgets
  • Search your widget and add it

On Android version 4.+

  • Go to your Homescreen
  • Open the App Drawer
  • Choose Widgets
  • Search your widget and add it

Latest Android

Follow these instructions to add a widget

Donnerstag, 28. August 2014

Russian Localization for Temperature Guard

After adding a translation for the french language, temperature guard will soon be available in russian! Thanks to xrizantema for translating the app to russian. Please wait 2-3 days for the update to be tested and released.
If you want to translate this app to your native language, please contact me, or just start translating it at

temperature guard russian
Temperature Guard in russian

temperature guard russian translation
The temperature guard menu in russian

Montag, 11. August 2014

List of supported devices

I am currently working on a way to create a list of best supported devices based on the user ratings and reviews left at the play store.

The following list of devices are either tested with Battery Temperature Guard Free or reviewed by users owning these devices and protecting their battery from overheating.Scroll through the list for your desired device or hit ctrl+f to search for it. Then click on its link to view the ratings and reviews.
There are a lot of users using the same device as you and having android battery problems. Check if Battery Temperature Guard Free can also help you!







Lenovo Mobile


Sony Ericsson







Toshiba Corporation

Micromax Informatics Ltd.







Kyocera Corporation









Barnes and Noble


Fujitsu Toshiba Mobile Communications Limited

Sonntag, 10. August 2014

New Preferences Layout

With the growing featureset of Temperature Guard I was unsatisfied with the current preferences screen. After adding the ability to change the app theme, the temperature scale or added the cool led notification, the current preferences layout was full of options and even I always need a little bit to much time to find the setting I wanted to change. Thats why I cleaned the Temperature Guard Preferences screen in the latest version 2.6
When changing the temperature scale from Fahrenheit to Celsius or the other way, the app will not calculate the corresponding warning temperature automatically.

android temperature preferences
The main temperature guard preferences screen
The preferences are now split into several preferences screens. The first option Temperature Icon will open a new screen with the options for the temperature icon. The Permanent notification checkbox is new. When checked the temperature notification will remain when you clear all notifications.

android temperature icon
Temperature Icon Preferences Screen
When clicking on the first option "Show Temperature" you can select to always show the temperature, never show the temperature or just show the temperature when charging.
android temperature settings
Select when you want to see the temperature icon

All settings for the warning notification are now inside a custom preferences screen. You will reach them by clicking on "Warning Notification" when on the main preferences. There is one new option. The insistent notification can now be customized. Some people complained that they cannot remove the insistent notification. As default, this setting is disabled, so the temperature notification will only notify you once. When checked, The notification will notify you until you swipe it.

android temperature warning preferences
Preferences for the warning notification

Sonntag, 3. August 2014

Android Temperature FAQ

Frequently asked questions

android temperature guard faq
The in-app FAQ Fragment

Android Battery Temperature Guard

How to customize the widget?

First add a widget to your homescreen. After this, open this app and select the widget fragment. Here you can use the slider to adjust the text size. Close the app and check your homescreen. The widget should now be updated. You probably need to adjust the Widget size. Do a long press on the widget and after this resize the widget to your desired size.

How to add a temperature widget to my android homescreen?

Watch this short youtube video to add a temperature widget to your android screen.

How i can resolve my battery problem of high temperature

When your phone gets too hot, you should put it out of the sun. Do not put it in a fridge. A ventilator can cool it down a little bit faster.
If your phone constantly gets too hot, you should replace the battery or contact your retailer for a replacement.

What is the best warning temperature to set?

The default warning temperature is set to 50 degrees celcius. Using a high end smartphone you should raise this value to about 55 degrees, cause new smartphones will get quite hot.
To keep your battery healthy and ensure a long life, try to keep it as chilled as possible.

How does the warning notification work?

You can configure the vibration and sound of the notification. Once the warning is triggered, it will vibrate until you swipe from top to bottom to open the android notification drawer.
You can test the notification if you open the preferences, scroll down and click on Test notification. This will fire a notification in five seconds.
Click here for a detailed description of the preferences fragments.

Are you having problems using this app on your device?

This app has been downloaded more then 40.000 times and is installed on more then 10.000 devices. I have collected user reviews from ~ 170 different devices by more then 20 manufactors. Check out this support list or this list if your device has been rated by a satisfied user. 

Temperature Guard Changelog

Latest Changes for Battery Temperature Guard

battery temperature guard changelog
The in-app changelog fragment

Version 3.4

  • Using Temperature Guard you can now also monitor the temperature of your wearable. An app will be automatically installed on your wearable app to monitor your phone temperature from your wearable.
  • You can now reset the database, export and import it. Some requested this feature cause it might be useful when you change your battery.
  • After you bought the premium upgrade, \'free\' will be removed from the in app title
  • API updates

Version 3.0

  • Added a turkish translation

Version 2.9

  • Added a new cool temperature and voltage widget
  • Updated French translation
  • Fixed two small bugs

Version 2.7

  • Some layout optimizations for tablets
  • Database redesign for more cool features to come soon
  • Added a russian translation,thanks to xrizantema

Version 2.6

  • Because a lot of users demanded this feature, you can now configure the warning notification type to be an insistent notification or a simple notification
  • Some users also wanted the feature to have a permantent temperature icon which cannot be removed. This feature is now a default setting. You can customize this inside the Temperature Icon preferences.
  • When switching between celsius and fahrenheit, the app will now convert your warning temperature to the new scale

Version 2.5

Version 2.4

- Added a FAQ Fragment
- Fixes some small bugs on various devices

Version 2.3

- Thanks proguard! With this update you will get about 200 kb free Storage on your device. :)

Version 2.2

- Migrated from ActionBarSherlock to AppCompat. This means this app will continue development and innovations for future android versions.
- Added a french translation (thx Cyrille)
 - You can now choose between Dark and Bright Theme

Version 2.1

- Added a small Temperature Widget
- Fixed multiple small bugs on various devices

Version 2.0

- Fixed vibrate bug on nexus 4
- If your device is set to silent, temperature guard will ignore this setting and warn you with a alarm sound. You can customize this in the Preferences.

Version 1.9

- The ongoing temperature notification can be set to:
Show always, Show when charging, Show never
- Fixed layout for tablets
- Fixed some small Live Diagram bugs
- LED will flash on warning if available

Dienstag, 29. Juli 2014

Memory Usage of Temperature Guard

I recently got a review for Temperature Guard from a guy complaining about too high memory usage. The review is in german, so I will not post it here. Well he complains that this app uses 250 mb of his smartphones memory, so he uninstalled it.
I was a little bit shocked and investigated this case. Temperature Guard Free & Pro will use about 30-75 mb of your memory, what is quite okay in my opinion.
temperature guard memory
Memory usage of Temperature Guard

Another thing about memory usage of apps is, that memory is made to be used. Unused memory is worthless. The android subsystem will handle memory usage, garbage collection and many more.

Sonntag, 27. Juli 2014

Temperature Guard 2.5

android temperature widget
Android Temperature Widget

Version 2.5 for Temperature Guard Free & Temperature Guard Pro has been released.

New features:

  • A new Battery Statistics Fragment has been added
  • Changed default warning temperature to 50 °C
  • You can now customize the widget textsize

android temperature monitor
The new temperature statistics

Donnerstag, 10. Juli 2014

Latest review for android temperature app

temperature guard review
Temperature Guard app rating
From time to time I get to the play store and check the reviews I get for my apps. Today I read 4-5 real bad reviews about people complaining with strange problems about my apps. After this I had a lot of short 4-5 star reviews. Maybe 10 or 15.

And then I got this review of a guy :)

app review

Freitag, 16. Mai 2014

Temperature Guard en francais

I am happy to announce that Temperature Guard Free and Temperature Guard Premium are now available in englisch, german and french.

android temperature french
Temperature Guard en francais

android french temperature
Temperature Guard en francais
android temperature guard french
Temperature Guard en francais

Samstag, 19. April 2014

Localization for Temperature Guard

temperature guard translate mobile view
I am working on translations for Temperature Guard.

Currently supported languages:

Do you want to use Temperature Guard in your native language?
You can easily help me. Just check out this project at


Thanks a lot.

Samstag, 5. April 2014

Android Battery Temperature Widget

android temperature widget
Android Temperature
Homescree Widget
Temperature Guard now features a simple but cool temperature widget. You can easily add this widget to your homescreen.

Have a look at this Video to lean how to add an android temperature widget to your homescreen:

Montag, 27. Januar 2014

Temperature Warning with LED Notification

Temperature Warning with LED Notification

Temperature Guard features different warning notifications when your android device is getting too hot. You can configure it to warn you with a sound and vibration. The latest update also features a LED Notification.
android temperature monitor
Temperature Guard for android
If your device supports colored LED Notifications, you dont have to configure anything. Temperature Guard will show you a red notification if the critical temperature is reached.

android temperature warning led notification
A silent temperature warning

Dienstag, 21. Januar 2014

New features for more safety

Overheating wireless chargers? 

I received some mails from people complaining about the "tylt Qi wireless charger" overheating their Nexus 5 devices. I love the idea of wireless chargers but did not buy any yet, cause they are quite expensive. Hearing more and more rumours about wireless chargers overheating android smartphones made me implement some small new features for Temperature Guard.
android temperature app  review
A "random" Temperature Guard
Review from a Tylt Vu charger customer.

Force Sound Alarm 

Inside the newest Preferences Screen you can see the option "Force sound". This will warn you when your device overheats even if your smartphone is set to silent mode. After the notification you have to set your phone to silent again.
android nexus 5 temperature
Temperature Guard

Sonntag, 19. Januar 2014

Exploded Iphone Battery

Temperature Guard for iOS?

I recently received another photo of an exploded battery apparently inside an iPhone 3GS. As you can see the battery is full blown up and wrecked the whole device. Nobody has been hurt by this accident. Maybe I should try to get an iphone and implement Temperature Guard for iOS?!

exploded iphone
Temperature Guard is not yet available for iOS :(

LED Temperature Notification

Battery Temperature Guard for android might have warned the user of an android device before it gets too hot. It will trigger an alarm notification with vibration, a customizable notification sound and a fancy blinking led.

android led notification
Temperature Guard alarm
for an overheating android

Montag, 13. Januar 2014

How to monitor android device temperature

I just created a small Video of Temperature Guard to show you how you can monitor your androids temperature and prevent it from overheating.