7 Best iPhones for Battery Life Ranked (2023)

So, you just got your brand-new iPhone 15 Pro, but wait! You notice that the battery life isn’t what you were expecting it to be. Maybe it’s worse? Better?

That’s what we are here for today. Let’s dive deep into every single iPhone lineup until the iPhone 13 itself, and see how much Apple has cranked up the performance in terms of battery.

So without further ado, let’s get into it!

Which iPhone has the best battery life?

If you are short on time, then just know that iPhone 15 Plus is the best battery iPhone ever with a battery lasting upto a whopping 13 hours and 19 minutes.

So if that’s all you were looking for, you can stop scrolling and wasting your time, and go ahead with your day!

However, if you’d like to see the full comparison, read on 🙂

Best iPhones for Battery Life Ranked

When it comes to choosing a phone, battery life often tops the list for most buyers. While performance and camera quality matter, a phone that constantly needs charging can ruin all the other features.

A recent real-life test focused on Apple’s latest iPhones could be a game-changer in helping you decide your next smartphone. In this test, the iPhones were exhausted to the limit, running various apps like TikTok, YouTube, and Zoom, throughout the day. There might have been some split-screen testing too, just to be sure 🙃. All iPhones had Wi-Fi and Bluetooth on, and the brightness was set high, but the audio was turned off.

Now that we know the testing conditions, we can now reveal the results:

1. iPhone 15 Plus

Battery Specs:

  • Screen On-Time: 13 Hours 19 Min
  • Battery Capacity: 4,383 mAh
  • Starting Price: $899
Best iPhones for Battery Life - iPhone15 plus

Result:
In 2023, Apple introduced the iPhone 15 series, and it’s surprising that the standard iPhone 15 Plus surpasses others in battery performance despite not having the largest battery. This is likely due to its use of a 60 Hz OLED display, which consumes less power compared to the 120 Hz display featured in the Pro models.

2. iPhone 15 Pro Max

Battery Specs:

  • Screen On-Time: 11 Hours 41 Min
  • Battery Capacity: 4,422 mAh
  • Starting Price: $1199
iphones for battery

Result:
In 2023, Apple introduced the iPhone 15 series, and it’s surprising that the standard iPhone 15 Plus surpasses others in battery performance despite not having the largest battery. This is likely due to its use of a 60 Hz OLED display, which consumes less power compared to the 120 Hz display featured in the Pro models.

3. iPhone 13 Pro Max

Battery Specs:

  • Screen On-Time: 11 Hours 19 Min
  • Battery Capacity: 4,352 mAh
  • Starting Price: $600
iphones for battery

Result:
No wonder this is a fan favorite! Imagine a phone that came out years ago still beating today’s flagship. So that is what I call quality. iPhone 13 Pro Max is a beast of a phone when it comes to battery life.

Just everything about it screams premium. And nowadays you get it for around $600. So it’s a win-win!

4. iPhone 14 Plus

Battery Specs:

  • Screen On-Time: 11 Hours 09 Min
  • Battery Capacity: 4,325 mAh
  • Starting Price: $799
iphones for battery

Result:
As far as the battery life is concerned, 13 Pro Max and 14 Plus come really close, to the point that one can even say that 14 Plus could be better in certain conditions. You can’t really go wrong with the A15 bionic chip guys!

For streaming and videos, it lasts give or take 26hrs. And for audio, it just keeps going and going and going to 70 hours!

5. iPhone 14 Pro Max

Battery Specs:

  • Screen On-Time: 10 Hours 54 Min
  • Battery Capacity: 4,323 mAh
  • Starting Price: $808
iphones for battery

Result:
While it doesn’t have the largest battery among iPhones, this model delivers the most extended battery life, thanks to the A16 Bionic chip. The optimized processing capability increases battery life compared to other iPhone models.

Get ready with your entire Harry Potter collection as this phone gives you about 25 hours of continuous playback on streaming.

For audio playback just like iPhone 13 Pro Max, it just keeps going till 95 hours. So, what I’m saying is to have a good playlist ready!

6. iPhone 15

Battery Specs:

  • Screen On-Time: 9 Hours 57 Min
  • Battery Capacity: 3,349 mAh
  • Starting Price: $799
iphones for battery

Result:
I am sorry, but I need to ask – why, Tim?! It doesn’t make sense to ship a new flagship that is beaten in the most important metric of all by last year’s flagship at the same price point here in the US. Despite the 60Hz display, this still lacks the punch we expected! Apple, please up your game.

7. iPhone 15 Pro

Battery Specs:

  • Screen On-Time: 9 Hours 20 Min
  • Battery Capacity: 3,274 mAh
  • Starting Price: $999
iphones for battery

Result:
Yes, you read it right. No, it’s not fake, and this is not a lie. Somehow, Apple managed to charge an extra 200$, and make the battery worse!! For a staggering 200$ increase in price, you get the absolute … worst battery on the entire lineup. Great job, Apple!

What affects the battery life of an iPhone?

Loads of factors played a role in determining the on-screen time of an iPhone. While I cannot dive deep into every single one of them, here are some of the key ones:

1. Battery Capacity

Battery Capacity is one of the biggest determining factors along with optimization when it comes to assessing your on-screen time.

The rule of thumb (bigger capacity, more performance), doesn’t exactly hold nowadays. I’m not saying it doesn’t hold at all – just that you cannot predict battery performance based on capacity! based on

2. Chipset

The chipset is probably the most important component when it comes to determining the battery performance in any phone and not just the iPhone. That’s because the processor manages the phones’ thermals, performance, and everything else under the sun!

This is also the reason why the A17 processors are so much more efficient than the A16, and why iPhone 15 Plus is such a beast of a phone!

3. Battery Optimizations

When it comes to battery life, significant optimizations are required. Especially when the phone is at a low battery and you need it to last, battery optimizations are what help you make the “one important phone call” before your phone gives up on you.

You know exactly what I’m talking about. We all have faced that fear 🙂

4. User Habits

Suffice it to say, that the users’ habits are going to affect the battery’s performance to quite an extent.

And why wouldn’t it? I’ve seen so many people charging their phones from 0% to 100% despite multiple researches stating not to do so since going from 0-100 exhausts the recharge cycles on a Li-ion battery, which are finite.

The same goes for dark mode, caching, airplane mode, and so many more things. That’s for another article, but long story short, the battery’s longevity depends a lot on the user handling it.

So be kind to your phone if you don’t want it dying on you 🙂

5. Software Updates

A lot of times there is nothing to be done on our end because the software running it all isn’t good enough. So, when the software updates are introduced in the future, it improves the battery life significantly without any intervention from our end.

How to Increase the Battery Life of a Phone?

Here are some quick fixes and checks you can do on your end to make sure everything is up to the mark:

  • Control Background App Activity: Background app refresh can drain your battery. Head to Settings > General > Background App Refresh to manage which apps can refresh when not in use.
  • Review Location Settings: Some apps constantly track your location, eating up battery. Check Settings > Privacy > Location Services to adjust which apps really need access to your location.
  • Tweak Notifications: Notifications lighting up your screen? Yeah, that’s disturbing as well as draining. Go to Settings > Notifications to choose which apps can send alerts.
  • Toggle Off Wi-Fi and Bluetooth: When not needed, turning off Wi-Fi and Bluetooth in the Control Center or Settings can help conserve battery life.
  • Smart Use of Airplane Mode: If you’re in a low-signal area or don’t need connections, Airplane Mode saves battery by shutting off all wireless functions.
  • Consider Vibrations: Vibrations use extra power. To save battery, consider turning off vibrations for notifications and calls in Settings > Sounds & Haptics.
  • Activate Low Power Mode: When your battery’s running low, switch on Low Power Mode/ Power Saving Mode in Settings or the Control Center to limit background tasks and extend your phone’s battery life.

While these won’t give you a ton of performance boost, they’ll surely give you enough for you to notice it!

FAQ

  • Which iPhone is best for battery life?

    The iPhone 15 Plus is the best battery iPhone ever with a battery lasting upto a whopping 13 hours and 19 minutes

  • What is the best iPhone battery health?

    Any phone above 80% charging is considered healthy by Apple itself!

  • Which version of the iPhone is best?

    Pretty subjective question, but for me, the iPhone 15 series is the best by far in the entire iPhone lineup.

  • Is the iPhone 12 battery better than 11?

    No, it’s not. The A14 chipset along with the integration of newer features actually makes it worse compared to the iPhone 11.

Wrap Up

The battery is crucial. You can have the best phone in the world, but if you don’t have the battery to back that up, you’ll never be able to enjoy its features to the fullest extent. You will always be looking over your shoulder, carrying a charger, and worrying about those things.

At the end of the day, it’s about priorities. Do you want the best in performance? The best in battery? A balance of both? What are you looking for?!

I’d recommend buying one that balances battery and performance and not just relying on one or the other, so you don’t feel the lag in any areas.

Have fun buying 🙂

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