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macrumors 6502
Original poster
Apr 17, 2012
Hello Everyone,

As the subject states for all my electronics, especially phones and my previous iPhones, whenever I buy a new iPhone I try to perform the following steps to make the battery last and 'break it in' properly. For the first few charge cycles I always de-charge the battery and let it get down to 4-5%, and then charge it all the way back up to 100%. I do this about 2-3 times right after I get a new iPhone, and wasn't sure if this procedure is still a good idea with the new iPhone 8+ (last time I did this was on my iPhone 6) to break-in the battery properly. I did this with my iPhone 6 and I had no problems with my battery.

Any thoughts around this breaking in the battery procedure, so I'll have better long-term use? Thanks in advance for everyone's time and help, it is greatly appreciated!

Newtons Apple

Mar 12, 2014
Jacksonville, Florida
You are just wasting your time and a few good cycles on your new battery.

Best to just use your phone and no worry about it. Charge while sleeping at night, repeat.

I charge while sleeping and have no had a single problem with any of my iPhone batteries and I have owned them all.


macrumors 65816
Sep 15, 2009
This was the practice with the old Nickel-Cadmium, less so with Nickel Metal Hydrate, batteries but it no longer necessary with current Lithium Ion ones. Charge it whenever convenient and keep it topped-up. Frequent deep discharging Lion batteries will reduce their cupcakes quickly.
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