JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Jun 21, 16 0. I know pretty much the entire internet says not to install iOS 8 on a 4S but that was mostly because of performance lag or certain features not being available.

Here’s why you shouldn’t upgrade your old devices to iOS 9

Performance is on par with iOS 7, and I don't care about those features. May 20, 1, I forgot to mention I installed a brand new battery about 6 months ago, for the exact same reasons barely a half day of battery life. I will look into disabling some of the notification widgets, but as far as I know the only notifications I have are for messages, Exchange email, Gmail, and Facebook.

The first three are absolutely necessary for work. Facebook not so much but it's nice to have. Richardgm macrumors a. Aug 1, I got 4 hours of usage yesterday. It was a good day. May 28, 7, Pennsylvania. Feb 24, USA.

Should You Update to iOS 9 on Your iPhone 4s?

Post a screenshot of your usage screen. Theres a good chance it's something like your photos updating in the background. This is the reason apple included this feature. Richardgm said:. Also, notifications got turned back on somehow for all kinds of stupid apps. I disabled everything but the essentials. SnowLeopard OSX macrumors a. Dec 5, 60 California. While taking an Uber with two co-workers a few weeks ago, I quizzed them about their iPhone batteries on their iPhone 6 and 6S devices.

Apple Support forums are full of similar complaints. Going back to the iPhone 5S and iOS 7. Those complaints persisted through the iPhone 6 and iPhone 6S and 6S Plus , with some users also complaining that the phone got very hot. Top 1 after I barely used my iPhone6, bottom a min after plugging into a charger.

Wassup Apple?

However, late last year Apple did reveal that a small number of iPhone 6S devices manufactured between September and October had a battery issue and were eligible for free battery replacement. This prompted the company to integrate new battery diagnostic software in an iOS update for all users. That software is out in the field now, gathering data for Apple. Early this year, a report surfaced claiming that Apple might extend the battery-replacement program to iPhone 6 devices.

Lithium-ion is, essentially, live chemistry inside your phone. Every lithium-ion battery is made of sheets of positive lithium cobalt oxide and negative electrodes carbon , with perforated separators between them, wound in tight, overlapping spirals.

iOS 6.1 iPhone 4S Battery Issue? Turn off your Exchange Calendar

During charge, the ions move in the direction of the negative electrode and during discharge, they move in the direction of the positive electrode. Lithium-ion batteries are lighter and offer far more energy density that their predecessors, nickel-cadmium batteries. They can also be volatile if not handled and manufactured correctly. A typical iPhone lithium-ion battery should last for approximately cycles. Apple told me last year that it even applies artificial intelligence to improve battery management, so those cycles presumably stretch out even more.

How you drain and recharge the battery also impacts battery life.

Helpful answers

Like a new car that starts depreciating the moment you drive it off the lot, lithium-ion batteries are continuously losing their charging capacity. But if you want real savings, go into your settings and adjust the brightness manually. Or, alternatively, just swipe up from the bottom of the screen and a brightness slider appears near the top of the quick access menu.

Another way you can save battery life is to turn off the active background and zoom animations. While iOS 7.

iPhone 4s battery!!

However, iPhone 5 and iPhone 4s do not possess that capability so stick to the brightness feature. Considering that a subway ride can take anywhere from 20 minutes to an hour and a half, if you put your phone in airplane mode again easily accessible on the quick access menu mentioned above the battery will thank you in the long run.

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Or if you plan on not using it at all, no games or music, try turning it completely off; it only takes a minute and will save you when you need it later on in the night. Also, turn it completely off at the movies. Be courteous to others; no one needs to check sports scores that badly. Apps take up the majority of the battery when used. Heck, even when they are sitting in the background they consume power.

When I looked, I had 23 forgotten-about apps open that I used from as far back as three days ago. Double tap the home button, and swipe the apps up to close them completely. Running only the apps that you are actively using is a great way to save juice. Video player apps like Youtube or Safari can consume a lot of power.