Sunday, March 27, 2011

Battery Drain / Battery Inaccuracies

Updated: 8/4/2013
Some comments I read said this app drains your battery. Is this true?
Nothing could be further from the truth.  In fact, thanks to Norton Mobile Security, we now have have third-party independent verification that both Battery Notifier BT Free and Battery Notifier Pro BT have the lowest drain on your battery of any Android battery app for your Android phone or tablet!  See Least Battery Drain Verified! for details.

For various other tips on how to prolong your battery see Battery Saving Tips.

IMPORTANT: Please read carefully if you think the reading you are getting is inaccurate.
Many phones will “lose” up to 10% of their charge within a few minutes of coming off the charger. This is because voltage above 4.0 and battery percentage above about 90 dissipate quickly due to lithium battery protection circuitry built into Android phones by the manufacturer.  Also, short discharges and recharges repeatedly done over a period of time do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state of charge.  This can eventually lead to the battery's fuel gauge becoming less and less accurate over time.

Your Battery Gauge Is Lying To You: Everything You Need To Know About Bump Charging And Inconsistent Battery Drain

What can be done to make the reading more accurate?
1) About every 30 charges, doing a full discharge from 100 percent all the way until your phone turns off can help.  Also, when doing one of these recharges to 100% to recalibrate your battery, it's best if your phone is off.
2) You can try bump-charging as is suggested at the "Your Battery Gauge Is Lying To You" link above.  However, while your readings may be more accurate, this may shorten the life of your battery a bit.
3) If your phone is rooted, (which will void your warranty and leave you more vulnerable to hackers) you can also delete the BatteryStats.bin file with the help of an app like Battery Calibration.

Also, although most users like to keep their batteries charged at 100% most of the time, this is not what is best for battery life.
See Table 3 here: How to Prolong Lithium-based Batteries
The recommended level to keep the battery at is actually 40%. At a temperature of 25 degrees celsius a battery left this way will lose about 4% of its capacity in a year, whereas a battery kept at 100% all the time can lose 20% of its capacity in a year.

The sad reality is that just a few short months after first using your new battery, your battery is just not going to be giving you the same reading as when it was new.  The older it gets, the less accurate its readings will get.  Batteries don't last forever.

Good app, sometimes it says full charge but it stays on the 90 % mark, plz fix,moto blur
There are many Motorola phones only report their charge at 10% intervals.  If your phone drops to 90% from 100% after only being off the charger for a short amount of time, that is the reason why. Reporting in only 10% intervals stinks to be sure, but there's nothing we can do about it.  That's just how Motorola designed their phones.  If you own one of these phones, let Motorola know how you feel and hopefully future models won't only report in only 10% increments.

UPDATE 8/9/2011: Starting with version 1.4.7, our new "1% fix" for Motorola devices is now in Battery Notifier Pro BT.  It has been tested successfully on the Motorola Droid X2 and Atrix, but it should work on many other Motorola phones as well.   It unfortunately does not work on the original Droid (sholes).  We suggest use of a standard Motorola battery only to ensure the optimum accuracy of the percentage displayed.

Tuesday, March 15, 2011

Quiet Hours vs. Mute Alerts

What is the difference between Quiet Hours and Mute Alerts?

Quiet Hours is for when you want to use the low battery and full battery alarms, but you already know there is a range of hours during the day or night when you don't want the alarms going off.  For example, when you are normally sleeping, or when you will be at work or in the classroom.

Mute alerts are for those times that aren't planned, but that you still don't want your alarms going off while you are busy doing something else.  Examples could be church, at a funeral, during dinner, or just a simple case of telling your alarm to wait until the movie or television show you are watching is over.  The default is to mute the alarm for one hour, but you have enormous flexibility as you can mute the alarms for 12 hours, one hour or even 15 minutes at a time.  The display then tells you exactly until what time the alarms will be muted.

Turning off the sound notification

Help!  How do I turn off the low battery and full battery sound notifications once they've started playing?   I have a custom song for my notification and it won't stop playing!

Try the following:

1) If charging your device, to stop the notification, unplug your charger.
2) Set up a shortcut on your home screen to Battery Notifier Pro BT and restart the application.
3) Swipe down from the top of the screen to make the drop down notification bar appear, then select the notification for Battery Notifier Pro BT.
4) Turn down the volume on your phone.

If your device is locked at the time the notification sound goes off, then use either 1) or 4).   Otherwise you will have to unlock it first and then use 2) or 3).

NOTE: If you get a popup similar to these:




Please know that these popups are NOT part of Battery Notifier Pro BT and are built-in "features" by the manufacturer of your device. You will have to click OK to get past these popups, or consult your device's instruction manual to see if there is a way to remove them.

UPDATE #1:  It has also come to our attention that some Samsung devices (such as the Samsung Galaxy S) have a sound notification and/or vibration that goes off every time when the battery is fully charged.  So even though you might have our app set to NOT notify you when the battery is fully charged, you may still hear this sound or notice the vibration on some Samsung devices.  We are sure when this happens in the middle of the night when you just want to charge your phone overnight it is not very pleasant, and we have no idea why Samsung would do such a thing and not give users a way to turn it off.

UPDATE #2: 10/21/11
We recently became aware of a free app that may help people who have the Samsung Galaxy S2 and Samsung Galaxy Tab 10.1 and who still might be looking for a solution for the problem mentioned above.  The app is called Battery Charged Silencer and you can find it at the Android Market.  The developer states that "Vibrator off feature may not work for other devices than Samsung Galaxy S2 and Samsung Galaxy Tab 10.1.  Please be aware that we do not support this app, nor do we know the developer, and we are just offering the link to try and help people with the Samsung Galaxy S2 and Samsung Galaxy Tab 10.1 who still are annoyed by the full charge notification and who haven't yet found a solution.  Any support you feel you need resulting from the installation or use of this app you would need to contact the developer at his website at Simple Apps.

Battery Statistics

I can't find the options for the Battery Information.  Where are they?

The battery statistics submenu can be found by pressing the Action Bar (the three vertical dots in the upper right corner of the dashboard) when you first open up the app.