Got some iPhone battery problems or want to get more juice from your phone? We've got you covered
Naturally, Apple is working on a fix for this bug, but in the meantime it recommends restarting your iPhone, going into Settings > Date & Time, and making sure that Set Automatically is turned on.
Beyond that, there are a number of ways to extend the battery life of your iPhone 6S - or any iPhone, for that matter. Here are ten of the best.
Next, take a look at our iOS 9 feature video:
Drop the brightness
The display is the most power-hungry component in any smartphone.The easiest way to lower your iPhone's power consumption, then, is to drop its screen brightness.
Modern iPhones are perfectly legible (at least indoors) with the brightness set to the half way point. You really don't need it cranked right up to max unless you're outside in bright sunlight.
To do this, just bring up the Action Centre with an upward swipe from the bottom of the screen, then adjust the top slider accordingly.
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Make sure your phone gets enough sleep
Are you someone who simply puts their phone back in their pocket when they're finished with it, relying on the auto-sleep function to initiate sleep mode? Shame on you.
Get in the habit of hitting the power/sleep key as soon as you've finished with it. It's the same principle as the aforementioned screen brightness point - it's all about minismising that power-hungry display's impact on battery life.
You can also lessen the amount of time it takes for your iPhone to auto-sleep by going into Settings>General>Auto-Lock and dropping the time down to 30 seconds.
Locate problem apps
If you find that your phone is mysteriously losing power all of a sudden, there's a very good chance it's down to an app.
The good news is that identifying the culprit from here is a simple task. Just go into Settings > Battery and examine the Battery Usage section.
This will show you the apps that have consumed the most power over the past 24 hours or seven days.
Reign in those thirsty apps
Located the problem app? Good. Now you need to set about reigning its mad power grab in.
Many of the most popular social network apps keep running in the background so that you can stay up to date on what your contacts are doing. When you think about it, though, you can usually wait for such updates until the odd moments when you have a spare few minutes to check. And at such points you probably initiate a manual refresh anyway, right?
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With that in mind, go to Settings > General > Background App Refresh and disable the ability to operate in the background for any power-hungry apps.
Use Wi-Fi over mobile data
The UK is getting better and better when it comes to mobile network connectivity. No, really, it is.
But generally speaking, mobile data is a bigger power hog than Wi-Fi. As such, you should try and hook up to Wi-Fi whenever possible.
This can vary, of course, depending on the strength of the connection in questions. But as a rule of thumb, Wi-Fi is easier on your battery than mobile data.
Do you really need to be found?
Your iPhone will track you wherever you are, but most of the time you don't really need that level of location awareness.
A lot is involved with keeping track of your location. It involves a combination of GPS, Bluetooth, Wi-Fi, and cellular data.
Head into Privacy > Location Services and deactivate the iPhone's tracking function. It's possible to set exceptions for your chosen navigation app, too.
Use Low Power Mode
When iOS 9 turned up late last year, it brought with it an explicit mode to help eke out battery life. Are you using it?
Low Power Mode will turn off a bunch of power-intensive functions to help get you through to your next charging opportunity.
Just go into the Battery menu and flick that Low Power Mode toggle to 'on'.
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If you're like us, you probably find it really annoying to have your iPhone constantly pinging you with notifications about every last thing. So why let it?
Lessening the number of notifications will make for a more pleasant and peaceful life, but it will also go much easier on your iPhone's battery life.
Go to Settings > Notifications, select the apps you don't need to hear from and deactivate the Allow Notifications toggle.
Check emails manually
Linked to that last notifications point, do you really need your chosen email app to pull in new emails quite so often? In fact, do you need it to do so at all? It would save a fair amount of power if you didn't.
Many people now treat email as an 'as and when' kind of thing, only responding when they get a spare minute to do so. So why not turn off the iPhone email app's auto-pull function and simply manually check when you get a spare five minutes?
Just go to Settings > Mail, Contacts, Calendars > Fetch New Data and turn the top Push toggle off. Any additional accounts should be switched to Manual.
Stop playing around
Are you an avid iPhone gamer? We hear you. It can be the best way to while away a boring commute.
But playing games - particularly graphically demanding 3D ones - is the single best way to burn through your iPhone's battery life in super-quick time. Gaming pushes your phone's CPU and GPU to their limits like no other task, which is why your phone gets hot. No, it's not because you're really good.
Heat means power consumption. If you're struggling to get through a full day on your iPhone, it's time to examine your gaming habits and consider going cold turkey. Buy a pack of cards or something.
Got any iPhone battery saving tips of your own? Let us know in the comments section below