Battery Charging Observation

This is a discussion on Battery Charging Observation within the LG Ally forums, part of the LG Android Phones category; I have noticed that when I put my phone on charge about 11pm for overnight charge and take it off charge at about 6am my ...

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Thread: Battery Charging Observation

  1. #1
    Android Jr Member stingrayracing's Avatar
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    I have noticed that when I put my phone on charge about 11pm for overnight charge and take it off charge at about 6am my battery starts draining immediately without any use. However, if I take the phone off charge soon after it reaches full charge (usually 2-3 hours) the battery will stay at 100% with no use for as much as 3 hours. Does this make any sense? My previous phone was an LG Evy Touch and I had heard that if you left the Touch on charge after it had reached full charge it would start to discharge the battery. When I took the Touch off charge when fully charged it seemed to last longer too. I wonder if this is an LG quirk. Anyone else noticed this? Now I still charge overnight but I top up the battery in the morning with the USB on my computer while I am using it and the battery seems to have a longer charge. Go figure.

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  3. #2
    Android Jr Member jazz's Avatar
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    I wondered why myself when I had charged up my phone to 100% and within minutes I would lose 10% or more charge with the phone just sitting in standby. I came across a great post on the xda-developers forum explaining why it would happen: http://forum.xda-dev...ad.php?t=871051



    here is the first part of the post but I suggest reading it all since it has a lot of great info about your smartphone and battery:



    "Your Smartphone is Lying to You

    (and it's not such a bad thing)



    Climbing out of bed, about to start your day, you unplug your new smartphone from its wall charger and quickly check your email. You've left it plugged in overnight, and the battery gauge shows 100%. After a quick shower, you remember that you forgot to send your client a file last night. You pick up your phone again, but the battery gauge now reads 90%. A 10% drop in 10 minutes? The phone must be defective, right?



    A common complaint about today's smartphones is their short battery life compared to older cell phones. Years ago, if you accidentally left your charger at home, your phone could still make it through a weeklong vacation with life to spare (I did it more than once). With the newest phones on the market, you might be lucky enough to make it through a weekend.



    And why should we expect anything else? Phones used to have a very short list of features: make and receive phone calls. Today we use them for email, web surfing, GPS navigation, photos, video, games, and a host of other tasks. They used to sport tiny displays, while we now have giant touch screens with bright and vibrant colors. All of these features come at a cost: large energy requirements.



    Interestingly enough, improvements in battery management technology have compounded the average user's perception of this problem. Older phones were rather inelegant in their charging behavior; usually filling the battery to capacity and then switching to a trickle current to maintain the highest charge possible. This offered the highest usage time in the short-term, but was damaging the battery over the course of ownership. As explained at Battery University, "The time at which the battery stays at [maximum charge] should be as short as possible. Prolonged high voltage promotes corrosion, especially at elevated temperatures."[1]



    This is why many new phones will "lose" up to 10% within a few minutes of coming off the charger. The reality is that the battery was only at 100% capacity for a brief moment, after which the battery management system allowed it to slowly dip down to around 90%. Leaving the phone plugged in overnight does not make a difference: the phone only uses the wall current to maintain a partial charge state."







  4. #3
    Android Jr Member stingrayracing's Avatar
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    Thanks Jazz, that article answers a lot of my questions. I will try to pay less attention to my battery gauge now, knowing it really isn't that accurate.

  5. #4
    Android Jr Member jazz's Avatar
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    Quote Originally Posted by Stingray View Post
    Thanks Jazz, that article answers a lot of my questions. I will try to pay less attention to my battery gauge now, knowing it really isn't that accurate.




    np glad the article helped you out

  6. #5
    Android Addict Qasar324's Avatar
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    Since the update, my phone makes me feel bad because I am "wasting energy." This seems to have had a psychological effect on me, as I tend to disconnect the charger when the phone is full, now. Good info in this article.

  7. #6
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