Apple Watch Series 9 and Ultra 2 Battery Capacities Revealed in Regulatory Database

Apple does not list battery capacities for the new Apple Watch Series 9 and Ultra 2 models, but MacRumors has discovered this information in a Chinese regulatory database today, and we have outlined our findings below.

Apple Watch Series 9
According to the database, which only provides Apple model numbers instead of product names, the 41mm and 45mm Apple Watch Series 9 models appear to be equipped with 282 mAh and 308 mAh batteries, respectively. These capacities are unchanged compared to the equivalent Apple Watch Series 8 models, which makes sense given that Apple says the Series 9 models have the same 18-hour battery life as Series 8 models.

As for the Apple Watch Ultra 2, it appears to be equipped with a 564 mAh battery, which is approximately 4% larger than the 542 mAh battery in the original Apple Watch Ultra. However, Apple says the Ultra 2 has the same 36-hour battery life as the original Ultra, likely due to it having a brighter display and other new features.

A recap of the Apple Watch battery capacities listed in the database:

Apple Watch Battery Capacity
Apple Watch Series 9 (41mm)
282 mAh
Apple Watch Series 8 (41mm)
282 mAh
Apple Watch Series 9 (45mm)
308 mAh
Apple Watch Series 8 (45mm)
308 mAh
Apple Watch Ultra 2
564 mAh
Apple Watch Ultra
542 mAh


New features for both the Apple Watch Series 9 and Ultra 2 include brighter displays, a faster S9 chip, a new "Double Tap" gesture for interacting with the watches without touching the screen, and more. Both new models have been available to order since Tuesday and will begin arriving to customers and launch in stores on Friday, September 22.

MacRumors also found the same battery capacities for what appears to be the iPhone 15 Plus, iPhone 15 Pro, and iPhone 15 Pro Max as were reported earlier today. We were unable to find a listing for the regular iPhone 15 battery.

Related Forum: Apple Watch

Top Rated Comments

JulianL Avatar
7 weeks ago
For travel I would love the iPhone to have the ability to wirelessly charge an Apple Watch. If you forget your phone charger or it (or the cable) breaks or is lost while away it is pretty easy to source a replacement. Now that we have the USB-C standard hotel reception could probably lend you a cable (at worst to be plugged into the USB port on a TV to get power) or many shops will sell such a cable but getting hold of an Apple Watch charger at short notice is a much more difficult proposition. Knowing that in an emergency one’s iPhone could act as an AW charger would be a really nice thing to have in my opinion.
Score: 7 Votes (Like | Disagree)
spazzcat Avatar
7 weeks ago

I personally don’t even need an Apple Watch lasting more than a day like I do not want my watch to suddenly die on me in the middle of day X. I rather charge it before bed and start the day at 100% without any worry of it making it through another day
With the fast charging, it doesn't take long to charge your watch fully.
Score: 5 Votes (Like | Disagree)
DotCom2 Avatar
7 weeks ago

I personally don’t even need an Apple Watch lasting more than a day like I do not want my watch to suddenly die on me in the middle of day X. I rather charge it before bed and start the day at 100% without any worry of it making it through another day
I agree. I actually have two watches. My fancy one that I wear out and about, and my house watch that I wear sleeping/showering etc. and just hanging. One of them is always ready to go! I never run out of battery.
Score: 4 Votes (Like | Disagree)
Radeon85 Avatar
7 weeks ago
And extra 22 mAh on the Ultra 2, I'll take it :)
Score: 4 Votes (Like | Disagree)
Fuzzball84 Avatar
7 weeks ago
I think it's just the best compromise. Some people like myself have small wrists and I have no issues charging my watch every day or two... its become second nature. I truly appreciate what it can do given its size. Best of all, my watch is Apple Watch 4 from 2019 and its battery health is at 86 percent, still getting a decent runtime. It's really a testament to how good the batteries are that it's still going strong after 4 years of daily usage.
Score: 4 Votes (Like | Disagree)
ApplesAreSweet&Sour Avatar
7 weeks ago
Fast charging does make wearing an AW feasible.

However, an upgrade to battery life is much needed -I consistently have to charge it two times per day if I’m doing sleep tracking and 30-90 minutes workout tracking.

What we need is the Ultra’s 542 mAhs in the standard watches.

Now that would be a reason to upgrade!
Score: 3 Votes (Like | Disagree)

Popular Stories

M3 Chip Apple Event Slide

First Benchmark Results Surface for M3 Chip in New Macs

Wednesday November 1, 2023 7:53 am PDT by
The first benchmark results for the standard M3 chip surfaced in the Geekbench 6 database today, providing a closer look at the chip's CPU performance improvements. Based on the results so far, the M3 chip has single-core and multi-core scores of around 3,000 and 11,700, respectively. The standard M2 chip has single-core and multi-core scores of around 2,600 and 9,700, respectively, so the...
iOS 17

Apple Preparing to Release iOS 17.1.1 Update for iPhone

Thursday November 2, 2023 1:22 pm PDT by
Apple appears to be internally testing an iOS 17.1.1 update for the iPhone, based on evidence of the software in our website's analytics logs this week. iOS 17.1.1 will almost certainly be focused on bug fixes, but it's unclear exactly which issues the update will address. The update could include the same fix for Wi-Fi connectivity issues that Apple rolled out in the first iOS 17.2 beta,...
m3 pro chip

Apple M3 Pro Chip Has 25% Less Memory Bandwidth Than M1/M2 Pro

Tuesday October 31, 2023 3:11 am PDT by
Apple's latest M3 Pro chip in the new 14-inch and 16-inch MacBook Pro has 25% less memory bandwidth than the M1 Pro and M2 Pro chips used in equivalent models from the two previous generations. Based on the latest 3-nanometer technology and featuring all-new GPU architecture, the M3 series of chips is said to represent the fastest and most power-efficient evolution of Apple silicon thus far. ...
AitTag New Firmware

Apple Releases New Firmware for AirTags

Tuesday October 31, 2023 11:26 am PDT by
Apple today released a new firmware update designed for the AirTag item trackers. The firmware features a build number of 2A61, up from the 2A36 firmware that came out last December. It has been nearly a year since Apple updated the firmware on the AirTags, and there is no word yet on what might be included in the update. Today's firmware release will be rolling out on a staggered basis....
M3 Max Chip

M3 Max Chip Around as Fast as M2 Ultra in Early Benchmark Results

Wednesday November 1, 2023 7:27 pm PDT by
The first benchmark results for Apple's M3 Max chip surfaced in the Geekbench 6 database today, providing a look at CPU performance. Based on the "Mac15,9" model identifier shown, the results appear to be for the new 16-inch MacBook Pro. The highest multi-core score for the M3 Max with a 16-core CPU is currently 21,084 as of writing. If this early result is accurate, this means the M3 Max is ...
10 New Features With iOS 17

iOS 17.2 Coming Later This Year With These 10 New Features for iPhone

Friday November 3, 2023 1:23 pm PDT by
Apple made the first beta of iOS 17.2 available to developers and public beta testers last week, and the software update includes many new features and changes for iPhones. Below, we have highlighted 10 of these new features and changes. iOS 17.2 is expected to be released to the public in December. Once available, the update can be installed in the Settings app under General → Software...
Pro Display XDR Red

Macs With M3 Chip Still Officially Support Only a Single External Display

Thursday November 2, 2023 7:41 am PDT by
Macs equipped with the standard M3 chip still support only one external display with up to 6K resolution at 60Hz, according to Apple's tech specs. So far, the chip is available in the entry-level 14-inch MacBook Pro and the 24-inch iMac. This limitation has existed since the first Apple silicon Macs with the M1 chip were released in 2020, but users can connect multiple external displays to...
apple music voice plan feature blue green

Apple Music's Lower-Priced Voice Plan Being Discontinued

Wednesday November 1, 2023 11:51 am PDT by
The lower-cost Apple Music Voice Plan is being discontinued this month in the U.S. and all other countries where it was available, according to an Apple support document. Brazilian website MacMagazine was first to alert us to this news. "Beginning in November, Apple will discontinue the Apple Music Voice plan," said Apple. "We are focused on delivering the best, most robust music experience...