Replacement battery- iPhone 4S

Discussion in 'Apple iOS (OS & Devices)' started by mcfee03, Aug 8, 2014.

  1. mcfee03

    mcfee03 Member

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    My iPhone 4S has had it.

    At 11pm last night, the battery was on 86%.

    The alarm on the phone went off at 6:30am this morning and went flat about 5 seconds into the alarm to

    Is it definitely the battery or could something else have caused this?

    Is there a battery monitoring app?

    I've got an old iPhone 4, but the battery is slightly lower power at 1420mha (4s is 1432mha). Should that matter?

    Can any of the cheap eBay one's be trusted? Or are they likely to be much lower-power than advertised?
     
    Last edited: Aug 8, 2014
  2. power

    power Member

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    EBay 2 screws cover another screw replace ip4 batteries are a no brainer really. Also did I read right you didn't charge overnight?
     
  3. OP
    OP
    mcfee03

    mcfee03 Member

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    No I didn't- normally I do but it went flat at about 6pm so I thought I didn't need to

    I've got the tools-are you saying the iPhone 4 battery won't work because of screws?
     
    Last edited: Aug 8, 2014
  4. power

    power Member

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    no I'm saying that replacing a battery in the 4 is a quick easy job.

    Being a 4S it's what 2-3 years old?

    Are you charging with at least a 5W charger not an old iPod one?
     
  5. FoBZY

    FoBZY Member

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    I got a genuine off ebay for like $30 , came with the tools too. Was $10 more than a non genuine, took like 5 mins to change
     
  6. OP
    OP
    mcfee03

    mcfee03 Member

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    Ok cool. Think it's 3 years old, but was probably left idle/un-used for about 4 months. Yes I'm using the new charger and cord.

    However, I'm using my iPad air charger (it's a 2amp or fast charger). Original apple. Could this damage my battery?

    Before I replace the battery, I might try removing the jailbreak. What's the best way to un-jailbreak- just a backup then restore via iTunes?
     
    Last edited: Aug 10, 2014
  7. power

    power Member

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    Air charger is probably 10 or 12 watt, will do no damage.
     
  8. booksacool1

    booksacool1 Member

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    The iPhone and iPad charger use a proprietary method to communicate. The iPhone will modulate the charging rate as necessary.
     
  9. OP
    OP
    mcfee03

    mcfee03 Member

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    Well I stopped using the iPad air charger (2.0a) and it seems like the problem has gone away.
     

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