iPhone 13 battery capacities have all increased versus iPhone 12

AppleInsider

A product safety filing has revealed the official battery capacities of the iPhone 13 lineup, which features larger batteries and better battery life on every single model.

Credit: Apple

At its Sept. 14 keynote event, Apple touted the increased battery life across its iPhone 13 models. The company said the iPhone 13 Pro Max, for example, can last up to 28 hours when streaming video -- the longest battery life yet in an iPhone.

In a product safety brier first spotted by 9to5Mac, Apple has officially revealed the battery capacities of its iPhone 13 and iPhone 13 Pro models. And while increased battery life can also be attributed to chip efficiency, the company has indeed bumped up the battery sizes on all four 2021 iPhones.

	Watt hour	Battery Life (video)	Weight (ounces)
iPhone 12 mini	8.57	Up to 15 hours	4.76
iPhone 12	10.78	Up to 17 hours	5.78
iPhone 12 Pro	10.78	Up to 17 hours	6.66
iPhone 12 Pro Max	14.13	Up to 20 hours	8.03
iPhone 13 mini	9.57	Up to 17 hours	4.97
iPhone 13	12.41	Up to 19 hours	6.14
iPhone 13 Pro	11.97	Up to 22 hours	7.19
iPhone 13 Pro Max	16.75	Up to 28 hours	8.46

The iPhone 13 mini has a 9.57 watt hour battery, while the iPhone 13 has an 12.41 watt hour battery. That represents a 11.6% and 15% increase over the preceding iPhone 12 mini and iPhone 12 models.

There are similar gains on the iPhone 13 Pro lineup. The 6.1-inch iPhone 13 Pro has a 11.97 watt hour battery, up 11% from the iPhone 12 Pro. The iPhone 13 Pro Max has a 16.75 watt hour battery, up 18% from the iPhone 12 Pro Max.

In addition to the larger batteries, it's likely that some of the increased battery life also comes from processor efficiency gains on the A15 Bionic.

Of course, larger batteries also contribute to heavier devices. The entire iPhone 13 lineup is slightly heavier than the iPhone 12 lineup. The iPhone 13 Pro Max weighs 8.46 ounces, as an example, up from the iPhone 12 Pro Max's 8.03 ounces.

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MplsP

so they put a 15% larger battery in the 13 and they get a 12% longer battery life? Engineering genius! 

The numbers go the other direction on the 13 pro, though - it has a slightly smaller battery than the 13 (presumably because of the camera assembly) yet the battery life is increased by 5 hours/29% over the 12 pro. On the surface the only difference is that the 13pro has an extra graphics core. I wonder what it is that gives the increased efficiency?

Kaizin514

MplsP said:

so they put a 15% larger battery in the 13 and they get a 12% longer battery life? Engineering genius! 

The numbers go the other direction on the 13 pro, though - it has a slightly smaller battery than the 13 (presumably because of the camera assembly) yet the battery life is increased by 5 hours/29% over the 12 pro. On the surface the only difference is that the 13pro has an extra graphics core. I wonder what it is that gives the increased efficiency?

Variable refresh rate screen. Most video content that people will watch is at 24fps, the screen will match @ 24Hz, thus saving on battery life. Combine that with a bigger battery and voila. I am not an engineer though, but I am sure OS improvements and the updated bionic chip, there could be efficiencies there too. Pretty brilliant if you ask me.

MplsP

Kaizin514 said:

MplsP said:

so they put a 15% larger battery in the 13 and they get a 12% longer battery life? Engineering genius! 

The numbers go the other direction on the 13 pro, though - it has a slightly smaller battery than the 13 (presumably because of the camera assembly) yet the battery life is increased by 5 hours/29% over the 12 pro. On the surface the only difference is that the 13pro has an extra graphics core. I wonder what it is that gives the increased efficiency?

Variable refresh rate screen. Most video content that people will watch is at 24fps, the screen will match @ 24Hz, thus saving on battery life. Combine that with a bigger battery and voila. I am not an engineer though, but I am sure OS improvements and the updated bionic chip, there could be efficiencies there too. Pretty brilliant if you ask me.

That actually makes sense - the added core handles the variable refresh rate and IIRC, the battery life test involves watching video so it would actually get a disproportionate improvement from a variable refresh rate. 

Not exactly gaming the benchmark, but since it’s a specific improvement that plays directly to the benchmark the benchmark may not be a totally accurate gauge of the improvement.