Apple Invents Wearable Battery Charging Module for Apple Watch

Apple is weighing up the possibility of developing a wearable battery module to charge an Apple Watch while it's being worn, according to a patent published on Thursday (via AppleInsider).

Details of the invention were released by the U.S. Patent and Trademark Office, under the title "Charging apparatus for wearable electronic device". The module uses an inductive element to transmit power to the smartwatch, similar to the one used in the existing Apple Watch magnetic charging cable.

Screen Shot 1
Two embodiments are described in the patent. The first shows the charger embedded in the wristband – an idea similar to previous inventions – while the second depicts a separate module that sits underneath the watch chassis and attaches to an existing band.

The induction component in the portable module is capable of both transmitting and receiving power, and aligns itself with the smartwatch or an external charging source using magnets. Apple proposes the use of heat-dissipating circuitry to ensure the module is comfortable to wear against the skin, while various wired solutions are also described for charging the device itself when not in use.

It's impossible to say whether the patent will see use in a future product, but Apple is clearly investigating various battery life solutions that don't sacrifice the thinness of the Series 2 design, which is already slightly thicker than the first generation. Improving the battery life of the next Apple Watch is also reportedly the "main task" of Quanta, the Taiwan-based company responsible for manufacturing the wearable.

Extending the time between charges would allow users to wear their watch to sleep over consecutive days, which would give Apple the opportunity to introduce sleep tracking features into the next WatchOS, as well as potentially introduce resting heart-rate tracking - a primary indicator of overall health. Extended battery life could even potentially usher in a future Apple Watch with an always-on display.

Related Roundup: Apple Watch 10
Tag: Patent
Buyer's Guide: Apple Watch (Caution)

Popular Stories

Mayday Calendar

Apple Acquisition Hints at Upgraded Calendar App on iOS 19 or Beyond

Friday May 9, 2025 9:13 am PDT by
Apple acquired Canadian startup Mayday Labs in April 2024, according to a European Commission listing, spotted by French blog MacGeneration. The acquisition had not received widespread attention from tech publications until now. Apple is legally required to report certain acquisitions to the European Commission, under the terms of the EU's Digital Markets Act. Mayday Labs founder Jeremy...
Nineth iOS 19 Feature

iOS 19 Beta is a Month Away With These New Features for Your iPhone

Thursday May 8, 2025 7:37 am PDT by
The first iOS 19 beta is just one month away, and there are already many new features and changes that are expected with it. Apple should seed the first iOS 19 beta to developers immediately following the WWDC 2025 keynote, which is scheduled for Monday, June 9. Following beta testing, the update should be released to the general public in September. Below, we recap the key iOS 19 rumors...
fortnite apple featured

Epic Games Submits Fortnite to U.S. App Store

Friday May 9, 2025 9:57 am PDT by
As promised, Epic Games today submitted Fortnite to the U.S. App Store, and if approved by Apple, it will mark the first time that the Fortnite app has been available in the United States since 2020. Fortnite will include options to purchase in-app currency from the web rather than through in-app purchase, which is what got the game banned to begin with. This time, though, Apple has been...
iOS 18

Here Are Apple's Full iOS 18.5 Release Notes

Tuesday May 6, 2025 2:17 pm PDT by
Apple today seeded the release candidate version of iOS 18.5 to developers and public beta testers, giving us a look at the final version of the update that will be provided to the public next week. With the release candidate, Apple provided release notes, so we have a more complete look at the new features that are included in the update, including those that weren't found during the beta...
top stories 2025 05 10

Top Stories: iOS 18.5 Release Imminent, iPhone Rumors for 2025 and Beyond, and More

Saturday May 10, 2025 6:00 am PDT by
With Apple's developer conference where it will show off iOS 19 just a month away, the company is wrapping up work on iOS 18.5 ahead of an imminent release to deliver a few new features and updates. This week also saw a number of iPhone-related rumors, encompassing not only this year's iPhone 17 lineup but also Apple's plans for 2026 and 2027, even as Apple's Eddy Cue suggested AI could make ...
Foldable iPhone 2023 Feature Homescreen

Apple's Foldable iPhone Display Tech May Set New Industry Standard

Thursday May 8, 2025 3:29 am PDT by
Apple's upcoming foldable iPhone will feature a new type of display panel developed by Samsung that has never been used in a foldable product, claims a source with links to Apple's supply chain. According to the account yeux1122 on the Korean Naver blog, the foldable iPhone will use a custom display process for which Apple will hold branding trademark rights, and that meets Apple's stringent ...
AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Tuesday April 29, 2025 1:30 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...

Top Rated Comments

iZac Avatar
108 months ago
I know that these patent diagrams never reflect the actual design of a product but I'd be remiss if I didn't mention:

Round watch face!
Score: 6 Votes (Like | Disagree)
lolkthxbai Avatar
108 months ago
That's not a patent for a product. That's a patent for the chargers they use on their demo watches.
Score: 3 Votes (Like | Disagree)
charlituna Avatar
108 months ago
This is all a little bit stupid. I just want a watch that can work long enough for a week's use. Not bits and pieces that add half a day longer. A watch that works at least a week, that's all I want.
you probably will never get one that lasts a week. but perhaps if they added some kind of kinetic charging you could go more than one day.
Score: 1 Votes (Like | Disagree)