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General Replacement battery (Galaxy S III, model SGH-1747M)

Discussion in 'Android Devices' started by John Beaudoin, Mar 22, 2016.

  1. John Beaudoin

    John Beaudoin Lurker
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    So,

    I'm broke, and my battery is shit. Phone "dies" at 50%. Tried a friends battery, works perfectly fine. So, I need a new battery. I know what it takes: 2100 mAh, 3.8 V Li-ion 7.98 Wh. I know what those values mean (from a layman's point of view), but I have a point in question.

    I see a battery on the 'ole eBay: 3200 mAh, 3.7 V, Li-ion. Says it is compatible with my phone. Simply put, higher capacity, similar voltage output. Would it **** up my phone with that .1 difference? If so, do you recommend the stock Samsung battery? Or an off-brand?

    Like I said, I'm broke. I don't mind waiting a month to have it ordered from China to save a few bucks, but I'm not buying another battery for $35 from a store, when my phone was purchased used for $30.


    **Update: I average about 1% a minute, and it died at 47%. Needs to be plugged in order for it to be rebooted.

    Thanks in advance,

    John.
     

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    #1 John Beaudoin, Mar 22, 2016
    Last edited: Mar 22, 2016
  2. Kiltpin

    Kiltpin Lurker
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    John, It is as near as makes no difference the same thing. Except it has a larger capacity. The new battery is at a lower stated voltage, so no it will not damage your phone. To be honest, I think that the 3.7 is a typo - it should be 3.8. It is a chemical reaction, which, when charged, should produce the same voltage every time.
    Regards
    Kiltpin
     
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  3. John Beaudoin

    John Beaudoin Lurker
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    The picture of the battery has it printed as 3.7 V, so I was wondering.

    Specifications:
    1. Dimensions: (2.48 x 1.97 x 0.20)" / (6.3 x 5 x 0.5)cm (L x W x H)
    2. Weight: 1.27oz / 36g
    3. Voltage: 3.7V
    4. Capacity: 3200mAH
    5. Battery Type: Li-ion Battery
    6. Compatible with: Samsung S3 i9300 / i535 / i747 / T999 / R530
     
  4. Jfalls63

    Jfalls63 Android Expert
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    Check Amazon. I got a two pack of replacement OEM batteries under $10.
     
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  5. mydian

    mydian Android Expert
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  6. svim

    svim Android Expert
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    I'd avoid any bargain specials or off-brand batteries, too many are manufactured with little quality control using cut-rate components. Saving a couple of bucks isn't worth the increased chance for one of those knock-offs burning up and frying your S3. As Jfalls63 suggested, it's less than $10 for a Samsung OEM battery. (Also note that while some phones have the NFC chip in the body of the phone, with S3's it's in the battery. Some off-brand S3 batteries don't even have the NFC chip in them.)
     
  7. John Beaudoin

    John Beaudoin Lurker
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    I've decided on an OEM battery. In the sake of getting it sooner, it'll be about $9, but it works for me.

    Thanks all.
     
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