1. AC Question's Avatar
    How many years of service should I expect from the original Galaxy S 3 battery, Use discharges it to about 50 % daily and it is recharged over night .
    05-28-2015 06:11 PM
  2. IlluminAppti's Avatar
    I don't think there's an accurate way to predict the life of it.

    All depends on; dust, what you're downloading, temperature of the room, how often you use it etc. etc.

    I wouldn't worry too much about how long the battery will last. I have friends that were constantly concerned with the battery life of their products, but rarely the battery was the cause of the phone's demise.

    I'd say, you should be expecting a good few years out of it. 4/5+ maybe.
    05-28-2015 06:24 PM
  3. sswitzer's Avatar
    I'm in the same boat... I figure that it might not actually be the battery that is the issue but instead the number of applications I have running that are constantly "checking" things while the phone is asleep. (I think these are called "wake lock" apps.) I have a Note 2, and it will lose 50% overnight if it's not plugged in.
    05-28-2015 08:14 PM
  4. Rukbat's Avatar
    It's not how often it's charged, it's how low you let it discharge before charging it. If you never let it drop below 40%, it should last for years. If you use it until the phone shuts off every day, it'll be dead in about 6 months.

    50% happens to be about the best charging point for longest life. You'll probably get tired of the phone long before the battery shows signs of losing capacity. Considering that it's an S3, you might find that apps are getting too large for it to install the latest ones (and the CPU isn't fast enough to run them well) even before you get tired of the phone. (My 11 year old V-551 original batteries [I always carry a spare] still give me about 95% capacity.)

    And even if the battery should go (if it grows a dendrite - something the industry still hasn't figured out how to predict or prevent - it has to be replaced, even if it happens a few months into its life), an Anker battery for the S3 (I like them better than Samsung batteries) is only $10.
    05-28-2015 11:26 PM

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