Hi, Modern batteries in things like iPhones work on a "charge cycle" basis. A charge from absolute 0% to absolute 100% constitutes a full "charge cycle". A charge from absolute 0% to exactly 50%, or exactly 50% to absolute 100%, would constitute half a "charge cycle". The battery has a number of charge cycles which it's set up to support before things should be expected to not perform properly. That number is somewhere around the 1000 mark. In simple terms, if you take your phone off charge each morning and it's at 100%, and it's at 0% each evening by the time you put it back on charge, your phone's battery ought to last 1000 days, or about 2 years and nine months. If, on the other hand, your battery is only at about 50% by the time you put it on charge each evening, it only needs half a charge cycle to get back up to 100%. Hence, your battery should theoretically last 2000 days, or about five and a half years. In practice the reverse happens, and the battery needs to be charged more frequently than once a day, so of course the battery lasts less than the two years nine months figure quoted above. But anything about needing to leave the battery to run all the way down before you charge it up is a myth, and an incorrect one at that. Batteries do not have "memories" like they used to. You also don't have to have the battery at 100% before first use, although you won't know exactly how much juice is in the thing until you get it going, so it might be handy to have a plug nearby just in case it comes up talking at 2% or something like that. Having said all that about expected performance, I should point out that performance will degrade slowly over time even if you treat your batteries especially carefully. There is a battery gauge in your phone and this may periodically require a reset in order to combat this gradual degradation. Failure to do this may result in, for example, the phone showing a 10% warning and then immediately shutting down - because there was actually less than 10% but the gauge was out of step with the amount of juice in the battery. To perform such a reset, intentionally charge the battery to 100% and then intentionally run the phone right down until the phone has no choice but to shut down, then intentionally charge back up to 100%. This procedure should not need to be undertaken any more frequently than once a month. HTH, Matthew
-----Original Message----- From: 'E.T.' via MacVisionaries [mailto:[email protected]] Sent: 20 November 2018 20:12 To: [email protected] Subject: Re: iPhone Battery Guide: Charging Your iPhone the Right Way Ramy, that would be fine, to charge it to 100%. Then you are good to go. Enjoy the 8 plus. I got mine in February and it has been good. From E.T.'s Keyboard... [email protected] Many believe that we have been visited in the past. What if it were true? On 11/20/2018 12:02 PM, Ramy Moustafa wrote: > O, thanks so much but just the 1st battery charge, how about it? > >> On Nov 20, 2018, at 8:24 PM, 'E.T.' via MacVisionaries >> <[email protected]> wrote: >> >> Ramy, >> That article is from 2013. I too went from an iPhone 5 to the 8 plus. I >> had the 5 for 5 years. I keep things simple. Charge overnight, which also >> allows the phone to be backed up. That is it. It makes no sense to let the >> phone run down for that is when you really need the phone in an emergency >> and, it will fail. >> >> From E.T.'s Keyboard... >> [email protected] >> Many believe that we have been visited in the past. What if it were >> true? >> >> On 11/20/2018 10:15 AM, Ramy Moustafa wrote: >>> Hello all People: >>> Finally after fighting with my Iphone 5, i bought today Iphone 8+. >>> THis is the 1st time that i need to ask about 1st Iphone Charge before >>> using it. i found this Artical, and do not know if it’s right or wrong. >>> need to tell me: >>> 1- i found some Battery power when i will power my Iphone, should i use >>> them or start Charging my Iphone? >>> 2- can you read this artical and tell me, if this is true or not? >>> charge it for 3 hours, let it power off for 2 hours, and Use it until the >>> battery went away, then charge it and leave it 2 extra power off hours. >>> are they right? >>> thanks in advance >>>> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fw >>>> ww.guidingtech.com%2F20732%2Fiphone-battery-guide-charge-right-way% >>>> 2F&data=02%7C01%7C%7C03a9c1846d7149fb8fa508d64f2476dd%7C84df9e7 >>>> fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636783415357297255&sdata=B2 >>>> %2Boy8AlfPxn%2BIEqlDDbPrr3L5GCEOSs4XVFM98gb7Q%3D&reserved=0 >>> -- >>> The following information is important for all members of the Mac >>> Visionaries list. >>> If you have any questions or concerns about the running of this list, or if >>> you feel that a member's post is inappropriate, please contact the owners >>> or moderators directly rather than posting on the list itself. >>> Your Mac Visionaries list moderator is Mark Taylor. 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