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  • 1 Post By GSDer
  1. Thread Author  Thread Author    #1  

    Default Galaxy S3: Question about car chargers

    I'm thinking about buying this car charger. I'm very ignorant when it comes to this kind of stuff, so bare with me.

    I have two Galaxy S3's I would like to be able to charge on this. But it has an "Apple" and a "Non-Apple" plug. And apparently you're not supposed to plug an android device into the apple plug. But I just can't understand why not.

    It says it outputs 4.2A. From what I understand, most android devices will only pull 1.0A. So... would this work or not? Is there harm in doing this?

    If this wouldn't work, or it's a bad idea, could someone explain why?
    Last edited by NotJustAPhone; 02-22-2014 at 09:21 AM.
  2. #2  

    Default Re: Galaxy S3: Question about car chargers

    I know that the s3 charger charges at a 1 amp rate, so I personally try to match that rate when purchasing replacement chargers. I'm not sure, but the 4.2 amp may just be the maximum rate, which is regulated by the device.

    Sent from my SCH-I535 using Tapatalk
  3. #3  

    Default Re: Galaxy S3: Question about car chargers

    You could have a 100 amp charger, but the phone will only draw 1 amp or so.
    An iPhone can draw as many as 2 amps.
    Samsung Galaxy S3 4gLTE
  4. Thread Author  Thread Author    #4  

    Default Re: Galaxy S3: Question about car chargers

    Quote Originally Posted by AxlMyk View Post
    You could have a 100 amp charger, but the phone will only draw 1 amp or so.
    That's what I thought.

    So if this car charger is outputting 4.2A, and my 2 phones will each only draw 1 amp, why shouldn't I plug my android device into the 'apple' port?
  5. #5  

    Default Re: Galaxy S3: Question about car chargers

    Might be wired differently. I have no idea how an iPhone is wired.

    Sent from my SCH-I535 using Tapatalk
    Samsung Galaxy S3 4gLTE
  6. #6  

    Default Re: Galaxy S3: Question about car chargers

    The S3 as well as the Samsung battery has a built in limit. It will not take in over 1 amp. I have a 2 amp charger in my Truck and have had not problems. Does not charge any faster than the stock charger that came with the phone.
    SGH-T999
    T-Mobile USA
    Rooted Stock 4.3 (No KNOX)

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    Unused Ram is Wasted Ram
  7. #7  

    Default Re: Galaxy S3: Question about car chargers

    The USB specification allows up to 5A for charging devices, and that device appears to use standard USB ports, so I don't see that there would be any problem.

    Sent from my rooted, debloated, deodexed Sinclair ZX-80 running CM -0.001 using Tapatalk Pro
    GTWalling likes this.

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