4 Replies Latest reply: May 9, 2013 6:47 AM by paulcb
ajcull94 Level 1 Level 1 (0 points)

Is it better to fully discharge and fully Charge or is it better to do partial charges. I have heard mixed opinons. What is the best way to keep your iphone battery healthy


iPhone 5, iOS 6.1.4
  • 1. Re: Charging iPhone 5
    kb1951 Level 5 Level 5 (4,215 points)

    I charge it overnight and as needed during the day. You don't have to do anything special. I have had no problems.

  • 2. Re: Charging iPhone 5
    JamesPaulMallon Level 1 Level 1 (125 points)
  • 3. Re: Charging iPhone 5
    Ralph Landry1 Level 7 Level 7 (32,445 points)

    There are a lot of statements made about how to treat Lithium-Ion batteries, especially those that say to discharge to shutdown and then fully charge to calibrate the battery.  In reality, that does not calibrate the battery.  A Lithium-Ion battery cannot be calibrated, that procedure only serves to calibrate the charge reporting circuitry.

     

    Independent battery testers have shown that full discharge/charge cycles are actually detrimental to the cycle life of Lithium-Ion technology.  Discharge to 50% and then charging will result in a cycle life that is four to five times longer than the full discharge/charge approach.

     

    I follow the procedure of charging when my iPhone/iPod/MacBook Pro get down to around 50% charge remaining.  A projected cycle life of 4,000-5,000 full charge cycles will mean the device has been replaced long before the battery cycles hit the life of the battery.  By the way, battery life is the number of cycles at which the battery capacity declines to 80% of the as-built capacity, not the point of inability to hold any charge.

  • 4. Re: Charging iPhone 5
    paulcb Level 6 Level 6 (19,060 points)

    You can and should charge as often and as long as possible... deep discharges are hard on lithium batteries.  Normal mobile use will result in the one charge cycle/month that Apple recommends.

     

    http://www.apple.com/batteries/iphone.html