I started asking friends and co-workers about their experiences.
Pretty much anyone I mentioned i Phone battery issues knew what I was talking about or had an experience to share.
Going back to the i Phone 5S and i OS 7.1, users recounted rapid battery drains.
Those complaints persisted through the i Phone 6 and i Phone 6S and 6S Plus, with some users also complaining that the phone got very hot.
While taking an Uber with two co-workers a few weeks ago, I quizzed them about their i Phone batteries (on their i Phone 6 and 6S devices). Then our driver piped up and said he’d has similar issues to the ones I described, even though he only had his phone for a year.
Apple Support forums are full of similar complaints.
Considering how intermittent and inconsistent these issues are, that’s not that surprising.
A cycle is a full recharge, which could span over a number of days: You might use 25% of the battery's power on day one and then 75% the next day.They lose roughly 5% of their charging capacity every month, which is a considerable improvement over nickel-cadmium batteries, which could lose 20%.They can also be volatile if not handled and manufactured correctly.Lithium-ion batteries will last longer if they're never fully charged or recharged (this is why, when you buy a battery-powered gadget like a smartphone, it typically ships with about 50% charge, plus or minus 20%).Side reactions in the chemistry increase when you drain the battery to 0% and constantly recharge to 100%.