Battery Life

Discussion in 'Android Support' started by nhynes86, Nov 9, 2009.

  1. krusers3

    krusers3 New Member

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    Don't think it is a battery issue

    I posted yesterday about my battery draining. Last night when I went to bed my phone was at 70 percent charge. I put it on the charger and went to bed. When I got up this morning I could not get the phone to wake up. I had to take the battery out and put it back in. I then plugged it in to the charger and a few minutes later tried to wake the phone up and it came on. AT A 100% CHARGE! So something is making the phone shut down. I am calling my local Verizon now and will let you know what they say
     
  2. krusers3

    krusers3 New Member

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    Who knows

    I called my local Verizon store and they said bring it in. They told me that it has been found that if the apps are not written for 2.0 they can power cycle the phone.

    When I went in everyone who worked there played dumb . They said that it's a new phone, everyone is still learning , yada, yada, yada. I felt like I knew more than they did just by reading these forums. They did say they would replace the phone. Since I am only 4 days into it, I decided to hang onto it.

    I have removed all the applications except for the ones that were on the phone when I got it or ones that were from the Verizon app store. I will see if it powercycles tonight. If it doesnt then I will add back some apps one by one .
     
  3. TommyGrubz

    TommyGrubz New Member

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    looking through the settings on the phone I noticed there is a way to see exactly what is using the most battery. From home screen: menu/settings/about phone/ battery use

    To the people having the problem here: do you leave it on the alarm clock app all night while unplugged? If so, the screen stays on all night and that will kill your battery. I think the screen uses the most battery out of anything.
     
  4. jakens84

    jakens84 Member

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    My battery, at normal usage (downloading apps, listening to music, internet browse) uses about 10% of the battery per hour. On full charge, that's approx 10 hours.

    I have turned my screen brightness to the lowest setting. (Turned auto-detect off)
     
  5. Bateluer

    Bateluer Member

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    Have you checked to make sure the GPS is off too? Bluetooh, WiFi, GPS, and screen brightness seem to be the biggest power wasters for me.
     
  6. TommyGrubz

    TommyGrubz New Member

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    Yesterday I got 21 hrs out of my battery with moderate use. This was with wifi and GPS on all day, and bluetooth on some of the time (while I was in the car - not THAT long). If you don't get anything near that you may consider taking it back and getting a new one. One thing I know is you should always allow it to fully charge, then charge all the way (cycle) a couple times when you first get it. After the first couple times, you should 'cycle' your battery maybe once a month.

    Also, if you leave it plugged in for a very long time after its done charging it will "fry" your battery and wont last as long. If you think this happened put your battery in the freezer at home over night (not kidding), then let it come back to room temp - make sure there is no condensation and it isn't cold or cool, then charge it back up. This is a trick I learned about lithium ion batteries over at BlackberryOS.com that works for ALL lithium ion batteries - even worked for my xbox controller that wouldn't hold ANY charge!
     
  7. MrTommy

    MrTommy Member

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    Is the battery a "deal killer?"

    I'm not a Droid owner yet, but have been going back and forth between wanting to buy one RIGHT NOW, and holding on to my LGnv2 because none of these battery issues come up. I use Bluetooth all day long, talk a LOT on my phone (I'm a truck driver, and our cell phones are the Long Distance CB's now). Sounds to me like the battery might be an issue. I take lots of videos and pass them along during the day, and talk a LOT all night long. As much as I love the sound of all this tech stuff, I'm wondering about battery life. If I have to remember to constantly shut off stuff I'm not using (GPS, WiFi, etc), I just know I'm going to blow it. Can you charge these things via ciggy plug while you're still using them?:blink:

    I don't think leaving your phone plugged into the charge will fry your battery. It used to be that way but I think the chargers are 'smart' now and automatically shut down when the battery is completely charged.
     
    #19 MrTommy, Nov 29, 2009
    Last edited: Nov 29, 2009
  8. mrpete311

    mrpete311 New Member

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    I've tried numerous things. This battery life is worse than the BB Storm. I had read reviews where it was better?

    Oh well......luckily chargers at work, home and car.
     
  9. keiichi25

    keiichi25 Member

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    Uhm, I would re-check those reviews and also do inquiries on how they came to that conclusion.

    As an actual BB Storm user, I can eek out maybe 4 to 5 days before I need to recharge the Storm, but then again, I have it at a much more minimal use and I also use the Auto On/Off feature on it to conserve battery power. The Droid, I can go through most of the day with semi-regular activity, but I charge it every night.
     
  10. Skyecat

    Skyecat New Member

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    I have had my new Droid since Saturday 11/28. I have been reading everything I can and setting my options to the best possible while still being useful for saving the battery. I unplugged @ 6:32 am today and have my Bluetooth running, have made 36m worth of voice calls. Had my email being checked every 15m on a single account. Received 3 text messages and sent 2. No web browsing and no game playing. Goggle Talk, Android Keyboard, Corp. Calendar (which I have killed) and bluetooth updating service is all that is running per the app manager in the settings tab. GPS and WiFi are turned off. Screen brightness is at just under 25%. My battery is now @ 40%. Battery usage states that 56% of what has killed my battery so far is the paltry 36m worth of voice calls (this was only 2 different calls by the way). Correct me if I am wrong, but shouldn't I be getting better results then this? Someone did mention that they were able to get a new battery under warranty...is this something I should consider? Someone also stated that they simply returned the entire phone for a new one. Anyone think I should do that or just wait it out? I understand I will not get the 3-5 days that I got out of my regular phone, but, using almost 1/4 of the battery to talk for 36m is kinda ridiculous. Thanks for any help/suggestion ahead of time :)
     
  11. TommyGrubz

    TommyGrubz New Member

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    If you say so... just remember the freezer trick I mentioned when your battery stops holding its charge ;)

    Anyways, instead of leaving it plugged in all the time, why not just charge it when it gets low?
     
  12. jltung

    jltung Member

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    Battery Life, To drain or not to drain ?

    Battery Life
    Battery Life is a major problem for a lot of people. I think it comes in 4 different packages:

    1: Battery : Do you drain the battery to zero or never let it drain down

    completely ? I do not know the definitive answer. It depends

    on who you believe and personal experience. I have not tried to

    drain the battery yet.

    2. Charger : Many people who have bought after market chargers have had

    interesting experiences from auto phone calls and emails made in

    sleep time to discharging while plugged in etc. I have several

    after market chargers, some work and some do not.

    3. Killer Apps : I believe they are helpful although they also drain battery.

    Some people feel that the LINUX system auto shuts down

    unused programs. I am not sure.

    I think TasKiller and Adv Task Killer work but use more battery.

    I personally use Adv Task Manager and find it works well for me

    4. Usage : Of course the biggest drain is usage. Any battery no matter how

    good will drain with heavy usage. i.e. game playing, listening to

    music, gps, bluetooth, wifi etc. The main drain is how long is the

    screen on.

    Conclusions: 1. Battery: defective ? Replace. Drain or not drain ???

    2. Charger: defective ? Dispose

    3. Killer apps: Do you need them ? I like Adv Task Management

    4. Usage: Review usage in Settings/ App - Spare Parts

    Modify especially in areas of low coverage. A lot of

    the programs kick in automatically and if your

    coverage is not good it continues to search and

    uses battery. That is what the Killer apps do.


    Originally Posted by sooper_droid12
    Lithium ion batteries should NEVER be allowed to discharge or reach a low level of charge and then fully charged (i.e. full cycle charges). A friend of mine has his mind set on the fact that you need to fully discharge a battery and charge it to full to maintain its longevity. The opposite though is true: 1) Each battery has a finite number of charge/discharge cycles so no matter what, every batterywill eventually decline and die (i.e. these batteries do not have memory); 2) Several partial discharges with frequent recharges are favorable over one deep one; 3) Since our batteries are being measured by a gauge, 1 full discharge in 30 will keep the battery's circuitry calibrated with the gauge.

    These are just some tips. Again, no battery is going to last forever and typical life for Li-ion batteries are 2-3 years. And don't bother getting a spare battery, unless you're one of those users who just blasts through batteries.
    Agreed, I always have people telling me to discharge fully, don't overcharge, etc... and I always have to go on with this story.

    The batteries that benefit from this type of charging and discharging are NiCd and NiMH cells; which were once very popular until lithium-ion technology came along. Lithium-ion does not have this "memory" effect and does not benefit from fully discharging, conversely, it looses capacity in these discharges.

    Lithium-ion (or lithium-ion polymer) degrades based on the amount of "charging cycles" that it undergoes; each full charge (0->100%) counts as one full cycle. So, as sooper said partial discharges are more favorable over full discharges as they only count as a fraction of a full charge cycle.

    As for the charging overnight, modern charges, phones, and batteries all include circuitry to prevent thebattery from being overcharged. You should be fine leaving it plugged in overnight.
     
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