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Thread: Charging iphone 5 battery

  1. #1
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    Charging iphone 5 battery

    Can someone tell me the DEFINITIVE word on how often the battery in iPhone 5 should be charged? I read somewhere lithium ion batteries should be kept charged, like every nite; others say let it run almost flat! What is Apple's advice?
    Appreciate your input!!



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    i charge mine every night regardless

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    Charging iphone 5 battery

    Best advice I can give is try not to let it get below 40% unless you need to, of course, and charge every night even if you are still not below 80%. Because it will never hurt the battery.
    Facts are the first casualty of bad information.

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    if i charge mine when i let it go down to 30-40% it lasts no where near as long as when i let it go down to 10% then fully charge it. its strange but true.

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    Ok so my advise is when the phone is brand new for the first 3 cycle run the batt below 20%
    After that just charge the iPhone normally anytime you like but I wouldn't recommend to leave you phone plugged all night ;(( that's a no!! and by the way I got this tricks from someone that works for apple.
    I do this tricks with every new iPhone and I can tell you my iPhone batt last long time very good juice.And then once a month I completely go down to like 5% and then full charge after that this keeps you battery calibrated

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    Quote Originally Posted by Skull One View Post
    Best advice I can give is try not to let it get below 40% unless you need to, of course, and charge every night even if you are still not below 80%. Because it will never hurt the battery.
    Skull I'm not with you on that. While I don't believe in discharging totally and think there is nothing wrong with charging at 40%, I don't think it does any harm to go to 20.

    Personally I just charge mine at night no matter where it is. I don't believe you can do anything special to make the battery last longer off a single charge. I have heard that it's a good idea every once in a while to let it discharge completely but that is to help the overall battery life, not a charge. AndI can't say that's true because I never have a phone long enough for the battery to die.
    My name is for the birds. It's not Bill. Please just call me "hook." And remember to be respectful. We are all here to help each other.

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    Quote Originally Posted by Norbert View Post
    Ok so my advise is when the phone is brand new for the first 3 cycle run the batt below 20%
    After that just charge the iPhone normally anytime you like but I wouldn't recommend to leave you phone plugged all night ;(( that's a no!! and by the way I got this tricks from someone that works for apple.
    I do this tricks with every new iPhone and I can tell you my iPhone batt last long time very good juice.And then once a month I completely go down to like 5% and then full charge after that this keeps you battery calibrated
    If you stand on one foot and point the battery north before removing from charge that helps too.

    I'm sorry, I don't subscribe to any of these so called calibrations of a lithium battery. Charge it when you want, if it runs low occasionally it won't hurt it.Lithium batteries power until full then stop powering. How long they last just depends on the amount of use.
    dbplumb and billmugan like this.
    My name is for the birds. It's not Bill. Please just call me "hook." And remember to be respectful. We are all here to help each other.

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    For me, the I let the battery drain to 0% for the first 1 or 2 charges with every new phone. Then I charge it normally as needed. Every couple of weeks I let it drain all the way down to 0 again and then let it charge about 1/2 - 1 hour once it reaches 100%. So far I've had great success with it!

    Unfortunately I just finished a full service charge so I can't share current results with you. But I can do that tomorrow if ya would like.

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    I let it go down to around 10% then charge it to full the pic attached is my normal battery life mostly playing games, texting, and forums. Also usually on wifi
    Attached Images Attached Images  

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    Ok, I think we need to get some serious facts injected to this conversation.

    1) You DO NOT need to condition a Lithium-Ion Battery EVER.

    2) You DO NEED to deplete and then full recharge a Lithium-Ion battery in ANY device that shows the remaining power available. Otherwise the device doesn't know where full and empty is on the battery.

    3) Lithium-Ion batteries DO NOT develop a memory. Point 4 will show why.

    4) Lithium-Ion batteries are RATED in terms of the FULL 100% discharge and FULL 100% recharge. If the battery is rated for 500 charges, that means it can take 1000 50% charges or 4000 25% charges.

    5) There are 4 phases to a Lithium-Ion Battery.

    Phase 1 is from 0% to 71% (+/- 2%) and is a full amperage charge.
    Phase 2 is from 7x% to 100% and is a decreasing amperage charge.
    Phase 3 is where charging it stopped until the battery falls below a preset level. Usually around 96% (+/- 1%).
    Phase 4 is a top off charge to get the battery back to 100% and is at the lowest amperage.

    6) Lithium-Ion batteries should NEVER be charged with a CORE temperature below 32F and above 140F.

    @ 32F the standard 100% amperage isn't sufficient to overcome the chemical reaction slow down.
    @ 140F at 100% amperage you can reach thermal runway and the battery becomes self heating and explodes.

    7) The average consumer Lithium-Ion battery will last 2 years under moderate to heavy use.

    Lets use a run time of 5 hours of use to reach 40% battery remaining in a 22 hour period with a two hour recharge cycle. That means with a battery rated at 500 full recharges you will get...

    500 * 100% = 50,000% of power available.

    50,000% / 60% of the battery used = 833 charging cycles.

    Since we said the period was 22 hour with 2 hours of recharge that is 24 hours or 1 day.

    So 833 days is 2 years and 103 day.

    Oh and just for fun, a 400 full cycle recharge rating is 400 * 100% / 60% = 1 year and 301 days.
    Last edited by Skull One; 10-15-2012 at 10:18 PM. Reason: Forgot a T and F
    Facts are the first casualty of bad information.


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