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.
