iPhone Duo Battery Life Depends on Which Screen You Use

[MacRumors]

The iPhone Duo has what Apple is calling an "iPhone-first dual battery system" with one battery on each side of the device. Apple optimized physical space for battery capacity to make sure that the battery lasts as long as possible.

When using the larger 7.6-inch inner display (unfolded), the battery lasts for up to 31 hours of video playback.

If you're using just the 5.4-inch outer display, the battery lasts for up to 44 hours when watching video.

With Apple's typical use metric, which includes equal use of both screens, the battery lasts for up to 24 hours. Typical use includes a mix of messaging, photo capture, listening to music, social app use, streaming video, playing games, web browsing, and navigation. Apple says it is based on median usage across iPhone users.

The typical use metric for the iPhone Duo matches the iPhone 18 Pro's. The larger 7.6-inch display draws more power and eats more battery than the 18 Pro when watching video, while the smaller display gets better battery life. The iPhone 18 Pro Max has the longest battery life of the three iPhones at up to 45 hours.

The iPhone Duo is able to charge to 50 percent in around 20 minutes with a 60W or higher USB-C power adapter. It includes support for MagSafe and can wirelessly charge at up to 25W using MagSafe or Qi2.

The two batteries in the iPhone Duo are managed as a single battery by iOS. Apple says battery life was maximized through the two-battery design, eSIM-only design, C2 modem efficiency, and the new A20 Pro chip.

Preorders for the iPhone Duo will start on October 16, with a launch to follow on October 23.

Article Link: iPhone Duo Battery Life Depends on Which Screen You Use

 

[Timmy Apple]

Insane pricing on it especially for a first gen product.

 

[B4U]

Thought this was mentioned in the announcement video.
Or am I imagining things? 🧐

 

[one more]

Well, who will deliberately watch a video on a 5.4” screen vs 7.6”, I wonder. 😋

 

[svish]

Definitely expecting the larger screen, when unfolded to draw much more power and using it will lead to substantially lower battery life. Overall expecting a decent battery life when using both screens throughout the day.

 

[dynAdZ]

Thought this was mentioned in the announcement video.
Or am I imagining things? 🧐

But fortunately people are yet allowed to write articles about it.

 

[Blackstick]

It's a really cool product, seems like a really slick Gen 1... but not one I'd buy on a first gen. 18 Pro will be just fine. In 2029/30 I'll see what the Duo of that generation is up to. Will probably have Face ID and 3 cameras by then.

 

[Taq'aix]

This is going to be Apple Vision Pro all over again. People will buy it, play with it for a week, then return it.

€2K for a first-gen product?

Yeah… nah.

(Downvote if you agree)

 

[Nyx1]

It will be fine as long no bugs again on Apple iOS 27 like last year

 

[JAQ]

Two batteries = twice as difficult to replace.

 

[tyrnnsrs]

That makes sense it would differ.

 

[snipr125]

It’s like a 13 Mini and Pro Max rolled into one device. Compared to the Fold 8 its got some specs that set it apart like the Titanium frame, Nano texture display and under display cameras.

 

[turbineseaplane]

Its like a 13 Mini and Pro Max rolled into one device.

Except the mini is much better as a super portable iPhone and the promax is much better as a high-end iPhone

Jack of all trades = master of none

 

[MiamiFL]

I wondered if they were operating separately or if it pulled from both collectively. I was trying to see if there was any connection through the hinge but didn't see one and this answers that question. I'm sure in later generations they'll figure out how to link them together.

 

[jeremyw013]

Insane pricing on it especially for a first gen product.

spoken like someone who has never seen a foldable phone before. this is completely normal pricing for a foldable phone.

 

[jeremyw013]

I wondered if they were operating separately or if it pulled from both collectively. I was trying to see if there was any connection through the hinge but didn't see one and this answers that question. I'm sure in later generations they'll figure out how to link them together.

they literally said in the announcement that both batteries are linked

 

[jeremyw013]

The iPhone Duo has what Apple is calling an "iPhone-first dual battery system" with one battery on each side of the device. Apple optimized physical space for battery capacity to make sure that the battery lasts as long as possible.

​

When using the larger 7.6-inch inner display (unfolded), the battery lasts for up to 31 hours of video playback.

If you're using just the 5.4-inch outer display, the battery lasts for up to 44 hours when watching video.

With Apple's typical use metric, which includes equal use of both screens, the battery lasts for up to 24 hours. Typical use includes a mix of messaging, photo capture, listening to music, social app use, streaming video, playing games, web browsing, and navigation. Apple says it is based on median usage across iPhone users.

The typical use metric for the iPhone Duo matches the iPhone 18 Pro's. The larger 7.6-inch display draws more power and eats more battery than the 18 Pro when watching video, while the smaller display gets better battery life. The iPhone 18 Pro Max has the longest battery life of the three iPhones at up to 45 hours.

The iPhone Duo is able to charge to 50 percent in around 20 minutes with a 60W or higher USB-C power adapter. It includes support for MagSafe and can wirelessly charge at up to 25W using MagSafe or Qi2.

The two batteries in the iPhone Duo are managed as a single battery by iOS. Apple says battery life was maximized through the two-battery design, eSIM-only design, C2 modem efficiency, and the new A20 Pro chip.

Preorders for the iPhone Duo will start on October 16, with a launch to follow on October 23.

Article Link: iPhone Duo Battery Life Depends on Which Screen You Use

anyone who thought otherwise lacks intelligence. who knew that using a larger screen would draw more power?

 

[MiamiFL]

they literally said in the announcement that both batteries are linked

ah misunderstood the title of the article

 

[inventor7777]

WHAT?? The larger screen draws more power than the smaller screen? 😱

 

[rchaser]

Except the mini is much better as a super portable iPhone and the promax is much better as a high-end iPhone

Jack of all trades = master of none

When you truncate quotes, it’s counter-productive:

“A jack of all trades is a master of none, but oftentimes better than a master of one.”

The More You Know 💫

 

[inventor7777]

MacRumors editors posting a new article every 2 minutes:

 

[turbineseaplane]

When you truncate quotes, it’s counter-productive:

“A jack of all trades is a master of none, but oftentimes better than a master of one.”

The More You Know 💫

I took the part of the quote that I think is relevant. ✌️

“oftentimes” can also mean often not.

 

[redheeler]

Insane pricing on it especially for a first gen product.

First gen product always has insane pricing compared to what came before, that’s how Apple does things. First MacBook Air, iPhone X, etc.

Remember when the iPhone X was considered expensive? Good times…

 

[the best tech guy]

The iPhone Duo has what Apple is calling an "iPhone-first dual battery system" with one battery on each side of the device. Apple optimized physical space for battery capacity to make sure that the battery lasts as long as possible.

When using the larger 7.6-inch inner display (unfolded), the battery lasts for up to 31 hours of video playback.

If you're using just the 5.4-inch outer display, the battery lasts for up to 44 hours when watching video.

With Apple's typical use metric, which includes equal use of both screens, the battery lasts for up to 24 hours. Typical use includes a mix of messaging, photo capture, listening to music, social app use, streaming video, playing games, web browsing, and navigation. Apple says it is based on median usage across iPhone users.

The typical use metric for the iPhone Duo matches the iPhone 18 Pro's. The larger 7.6-inch display draws more power and eats more battery than the 18 Pro when watching video, while the smaller display gets better battery life. The iPhone 18 Pro Max has the longest battery life of the three iPhones at up to 45 hours.

The iPhone Duo is able to charge to 50 percent in around 20 minutes with a 60W or higher USB-C power adapter. It includes support for MagSafe and can wirelessly charge at up to 25W using MagSafe or Qi2.

The two batteries in the iPhone Duo are managed as a single battery by iOS. Apple says battery life was maximized through the two-battery design, eSIM-only design, C2 modem efficiency, and the new A20 Pro chip.

Preorders for the iPhone Duo will start on October 16, with a launch to follow on October 23.

Article Link: iPhone Duo Battery Life Depends on Which Screen You Use

Guys of course it's going to be $2,000, what do you expect. Its Apple we're talking about here

 

[scrapesleon]

Insane pricing on it especially for a first gen product.

Actually it’s cheaper than expected and more affordable