1. too lame to come up with a good username's Avatar
    So the I replaced my Galaxy S3's 2100 mAh battery with a third party 3420 mAh battery. I already calibrated the new battery twice, but I havent noticed any changes in battery life. My battery was at 100% this morning when I woke up around 6:30-ish. Its 10:45 and my battery is now at 65% already

    I know third party batteries may not have as high of a capacity as the seller states, but I was at least expecting a noticeable change in battery life. Anyone know why it hasnt made much of a difference?

    Posted via the Android Central App
    11-14-2014 12:51 PM
  2. raptir's Avatar
    The major issue with abnormally high capacity batteries (for example, almost 50% great capacity than stock) is that they typically have dramatically higher resistance than the stock battery. As a result, you lose more power from your battery trying to deliver power to your phone.
    11-14-2014 02:10 PM
  3. too lame to come up with a good username's Avatar
    Wow, how ironic. I might go one day with the stock battery, and then another with the third party one just to see if it at least makes some of a difference. Otherwise I may still have time to return the battery.

    Posted via the Android Central App
    11-14-2014 02:28 PM
  4. raptir's Avatar
    There's a reason phone manufacturers set the capacity of the battery given the space they have for the battery.
    11-14-2014 03:13 PM
  5. Rukbat's Avatar
    Nice theories (or were they just guesses), but the only way to tell for sure is to measure the capacity of the battery. Some sellers simply relabel a stock battery and sell it at a higher price. Put a known load on the battery and see what the draw-down capacity at 0.1C or 0.2C is. If you can't do that, you'll just have to accept that you have 2 stock batteries, one mislabeled.

    I've used known larger capacity batteries in LG, Motorola, Nokia and Samsung phones over the years with no problem - they all lasted longer to a given discharge point. (In fact, with the 5110/6110 series, Nokia themselves sold a larger capacity battery. And, IIRC, Motorola also did with a few of their phones.)
    11-14-2014 05:09 PM

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