Way to Alarm When Battery Reaches Full Charge?Support


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  1. gidget

    gidget Well-Known Member This Topic's Starter

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    building on the discussion about the inc starting to drain from the battery after it reaches 100% (if left on), is there an app or a setting on the phone that would play a notification sound when the battery light goes green or the battery reaches full charge? of course the light turns green, but i'm not watching my phone. if i could have it set off a notification sound when it reaches the green light/100% full, i could remove it from the charger promptly.

    i am pretty sure i read all the battery threads correctly, and that the problem is that after it reaches 100%, if left plugged in, it starts to run on battery not wall charge, so it depletes the battery even while it appears to be charging (in fact, it is no longer charging). right? that's why i'd like something to notifiy me audibly when it is at 100%.

    thanks!
     

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  2. crazydog

    crazydog Well-Known Member

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    If there isn't an app, I'm sure it would be easy to do. I've been meaning to write an android app. If this hasn't been done, maybe I'l do it. :p
     
  3. Colchicine

    Colchicine Well-Known Member

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    Charging batteries doesn't require as much effort and some may lead you to believe. There is nothing wrong with leaving it on the charger, and no, the battery doesn't drain while it's being charged.
     
  4. sabrewings

    sabrewings Well-Known Member

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    Yes, it does on the Incredible as tested with equipment. The Incredible stops pulling current from the charger when the light goes green. No current to the phone means the battery is being drained.

    Leaving it on the charger is why people see that up to 10% drop when they pull it off in the first ten minutes. The GUI of the battery meter catches up to the actual battery charge. The longer you leave it on the charger, the more that initial drop will be because your phone is running off battery power.

    I've also been thinking about an app like this ever since I did my ammeter test.
     
  5. AttorneyIncredible

    AttorneyIncredible Well-Known Member

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    very bad to leave the phone on the charger past its charge point, do not recommend, phone will fry.
     
  6. teufeltexan

    teufeltexan Well-Known Member

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    Incorrect, in the case of the Incredible.

    For example - my Inc was placed on the charger last night at 7:45 PM. It charged until a bit after 10PM, at which time I saw the light go "green". At the same time, My BatteryLeft widget changed from the "Lightning Bolt" emblem (which it displays while "charging") to a blank battery simply showing "full".

    At that moment (while still plugged in) I can browse to my battery settings and see that it now displays a time "since unplugged".

    Anytime I charge my phone overnight, I can wake in the A.M., grab my Inc and open settings>about phone>Battery>Battery Use and (even though my phone is still plugged in) it will display 4h 2m 53s since unplugged (or however long it happens to have been since the phone reached full battery, dependent on what time I plugged it in/woke up). Again, this is while my Dinc is still plugged in.

    As stated above, this is why the Inc may appear to "lose" a great deal of it's first 10% of charge in such a rapid manner. The phone is not discharging any faster, it's simply letting the meter "catch up" with diplaying the small percentage of battery life which has been spent since the phone stopped using AC power and reverted to battery power. I've watched it repeatedly since launch, and it has NEVER failed to perform as noted (unless of course I take it off the charger immediately after it "goes green" - in that instance it stays at 100% for a lengthy amount of time as it is truly "fully charged" when I remove it).

    It is pretty well established that after the Inc reaches full charge while turned on, the phone reverts to battery power - even when it is still plugged in. A power cycle, unplug/replug or (occasionally, although I cannot figure out the rhyme/reason) simply putting the phone to sleep will then return the phone to AC power.



    110% incorrect. The built in charger on the phone simply does not allow this. See the infinite number of threads on this forum and many others regarding the charging characteristics of this phone for further info.
     
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  7. AttorneyIncredible

    AttorneyIncredible Well-Known Member

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    its happened to a lot of people.
     
  8. sabrewings

    sabrewings Well-Known Member

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    Thank you! Getting out the real deal with the Incredible's charging is important. People have a lot of misinformation about it here. I didn't know that Battery Left bypassed the GUI's battery indications and went straight to the low level indicators. Nice! Now people can see that when the light is green the phone is back on battery power. It's the higher level HTC Sense indicators that still show the illusion of the battery staying at 100% (until pulled of the charger then you get that drop everyone hates as the indicator catches up to the actual battery level).

    That's because of older charging technologies. Modern Li-Ion/Polymer battery charging circuitry as well as the battery chemistry prevents this from being an issue.
     
  9. teufeltexan

    teufeltexan Well-Known Member

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    Provide a single example of an Inc "frying" because someone left it on the charger past the time it reached full charge.

    Just one...
     
  10. Colchicine

    Colchicine Well-Known Member

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    Apparently I've missed the battery threads where this phenomenon has been well established. If it is true, not only would pulling from the battery be counter-productive, but also counter-intuitive, and I'm not convinced. My laptop is not running off of it's battery when it's plugged in. We already know that software has its faults and may not display the accurate condition. The same could be the case with the "since unplugged" time.

    I'd like to see the other threads on this, with the test results mentioned above. Obviously doing a search got me nowhere.
     
  11. gidget

    gidget Well-Known Member This Topic's Starter

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    and many of us would probably pay you a nominal fee to do so! :)
     
  12. sabrewings

    sabrewings Well-Known Member

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    Your laptop has older or better operating setup for charging. No one said this is how it is perfectly supposed to function, but this is how it is functioning in the Incredible. People keep going around making up these "OMG, my phone doesn't charge all the way" or "HTC sucks it's totally broken!" comments and the run rampant. Then people ignore a very simple phenomenon, that the phone switches back to battery power when light goes green.

    Also, battery left is a great widget, and I'm even more impressed that it recognizes what's going on instead of the higher level indications that Sense gives you. Whether HTC intended this or not, I'm not sure. Sounds to me like hardware engineers not talking to software engineers.

    Here's my info from my test:

    And here's where Dustin applied his info to the idea as well (see posts 2 & 3):

    http://androidforums.com/accessorie...ssue-2150-no-not-i-found-soultion-thread.html
     
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  13. Colchicine

    Colchicine Well-Known Member

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    So there is still more information to the story. When I've been at home I've had the phone on the charger all day. I've never pulled it off and found a 50% battery. So it pulls from the battery when charging is complete, but there must be a lower level at which it will recharge the battery again. Otherwise I would see a used battery 12 hrs after it has been recharged. So it must be a cycle charge, discharge battery, recharge battery. I suspect the difference between the two levels is minuscule. I admit that I'm in a grumpy mood right now, and this battery thing is ticking me off.
     
  14. teufeltexan

    teufeltexan Well-Known Member

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    I suspect the same - but haven't caught it in the act as of yet...

    I'd assume the level would be somewhere sub-92% - as I've never seen it "start" below that level - but have absolutely NO empirical evidence on which to base that.
     
  15. sabrewings

    sabrewings Well-Known Member

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    That is my theory as well. I haven't yet taken the time to test when it would start charging again. My theory was like 80%, but if you found a 50% battery that's probably a lot closer to the limit.

    I'm not sure why HTC did this, if it was purpose or accidental. But part of me thinks it was on purpose to preserve battery life. It's better for it to gently discharge than to sit at full all the time. The optimal storage capacity for Li-Ion is 50%.
     
  16. jayDInc

    jayDInc Well-Known Member

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    I had an app like this but wanted a programmable threshold for notification. I can't find that one but there is Eco Charger which will alert you at 100%.
     
  17. dm33

    dm33 Well-Known Member

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    I'm currently working on an app to test the battery. I could include something like this as part of it, maybe not in the first release but an update. I intend to release it soon. Nothing fancy, but useful and interesting results.
     
  18. crazydog

    crazydog Well-Known Member

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    [​IMG]

    :D
     
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  19. Colchicine

    Colchicine Well-Known Member

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    I'm not going to scan link to my phone without knowing where it goes.
     
  20. gidget

    gidget Well-Known Member This Topic's Starter

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    unfortunately, eco charger seems to place that ginormous icon in the notificaiton bar, and i don't want that. i can't find a way to disable that, so that's no good for me. also, i'd like a way to customize the notification sound.
     
  21. crazydog

    crazydog Well-Known Member

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  22. gidget

    gidget Well-Known Member This Topic's Starter

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    ha! sorry, i am still laughing over the 2nd to last choice of alarm sounds. i had to choose something else for now (at work), but i love it.

    charging now, will let you know how it goes. and no annoying icon! at least, not yet. :)
     
  23. gidget

    gidget Well-Known Member This Topic's Starter

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    hey, crazydog, love it! just tested it a couple times, works great, just what i wanted. the only thing i'd do to improve it (for me, anyhow) would be if i could use any of my phone sounds for the alarm (although i think your choices are good), and if it woke the phone when the alarm went off, or at least an option to do that. but i love it, it works great for what i wanted. and i love that you stop the alarm by opening the notification panel, that totally works, and then the icon disappears. thanks!!
     
  24. sabrewings

    sabrewings Well-Known Member

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  25. aw1974

    aw1974 Well-Known Member

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    I am fully chah-ged!:D
     

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