Apple Watch 2 could offer a few hours of additional run time via a stronger 334 mAh battery

By , Aug 28, 2016

Apple Watch 2 battery leak 003

Prolific leakster @The_Malignant today republished a pair of claimed images of a purported battery pack believed to have been designed for a 42mm second-generation Apple Watch. Originally posted by an unnamed source on the Chinese social network Weibo, the tiny battery shows an increased capacity of 334 mAh. By comparison, the original Apple Watch is outfitted with a 245 mAh battery (42mm version) so it’s entirely conceivable that the Apple Watch 2 could offer a few hours of additional battery life—assuming the leaked photo is genuine.

As mentioned, the original Apple Watch draws power from its battery pack rated at 0.94 Wh and 246 mAh. The claimed Apple Watch 2 battery seen top of post is rated 1.28Wh and 334 mAh. That works out to a capacity increase of a little more than 35 percent, potentially giving the Apple Watch 2 a few hours of additional battery life.

There are other factors at play here.

The Wall Street Journal recently claimed that the second-generation Apple Watch would feature embedded cellular connectivity, but a report from Bloomberg poured cold water on that rumor, saying battery concerns and other technological limitations prompted Apple engineers to delay a cellular-enabled edition of the wearable gadget.

“Apple executives expressed concern that the cellular models may not be ready for release this year and that the feature may be pushed back to a later generation,” said Bloomberg’s sources.

Apple Watch battery iFixit 002
Apple Watch battery photo courtesy iFixit.

The Apple Watch 2 is also believed to ship with a built-in GPS module.

Now, we know from past experience that GPS is a battery hog so it’s plausible that a more powerful battery may not actually result in a longer run time for the second-generation Apple Watch.

The Apple Watch’s ‘S2’ processor is said to be fabricated on TSMC’s 16-nanometer process technology versus the 28-nanometer, Samsung-built ‘S1’ found in the original model. That’s good news because TSMC’s technology should yield a smaller, faster chip that consumes less power than its predecessor.

Other rumored features of the Apple Watch 2 include a thinner, lighter display assembly (though screen resolution apparently won’t change), better waterproofing enabling it to track swimming, a built-in FaceTime camera and more. Various supply chain sources have indicated that the device should release in September or October.

Source: The Malignant via (Google Translate)

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  • John Wickham

    Of all Apple’s products, the Watch is not one that has battery life issues. If they’re including a stronger battery, they’re definitely adding some new power-hungry capability.

    • pnh

      Until it can go 3-5 days like a Fitbit and be able to be worn at night to track sleep instead of charge, it has battery issues.

      • Rowan09

        The Fitbit doesn’t do nearly as much so it’s not a good comparison. Battery issues is not really an issue as stated, of course battery life can always be better.

      • askep3


      • askep3

        Nah, fitbits useless for all the non fitness features. For most people I think the Apple Watch is primarily a notification, fashion, and app device, instead of a fitness device. Why buy a $350+ device when you can get one for less than half for fitness.

        I completely agree with you on the sleep tracking, it can already charge pretty quickly, so after you wake up you can put it on the charger, but sleep tracking would be great.

        Otherwise I don’t see why everyone is hating on the battery life and demanding 3-5 days, ofc it would be great, but charging it alongside your phone doesn’t seem like such a problem.

      • mrgerbik

        pebble is a better comparison

        and yes people, it has battery issues

    • eXoguti097

      GPS, maybe. Those who won’t use GPS will see the biggest battery improvements.

      • askep3

        Yeah, if I get one I’m gonna turn of the gps right away, I’ll have My phone with me all the time, don’t need gps to waste battery. I hope they just make a cheaper one without the gps but with everything else, cuz it’s useless for a lot of people

      • Lit

        GPS is not useless at all. It was what people demanded because without it, you can’t use the watch alone.

      • askep3

        As I already said, I, and most other users of the watch will have their phone with them when using it, for the small amount of people who use it without their phone, maybe for fitness, the gps would be useful, but otherwise I don’t think there’s any other reason to have a gps. I’m pretty sure when it’s with the phone it turns of one of the gps to save battery.

        And how can you not use the watch without gps, the current one doesn’t have one

  • DD™

    Looking forward to this watch. I’m in this time around.

    • askep3

      Same, so many of my friends just got one, cuz of the sales, but in just like why get the new one that’s prob coming out in like 3 weeks

  • Martynet

    Doesn’t really matter cos I charge my apple watch every night. And when I go to bed, I still have around 55% battery left. One time I forgot to charge them and managed to go through 2 days 🙂

    • Leslie B

      Yup. Same here.
      Besides, isn’t that Apple design genius, Jony Ive, concerned about ruining the user experience with a better battery like he is with the iPhone? Maybe Apple could invent a case or strap with a big ugly bulge on it like the iPhone case.

      • Martynet

        And of course, if there is a GPS and cellular, bigger battery makes sense.

  • Mike M. Powell

    The watch already has an unbelieve battery span like others said, increasing it means they adding something crazy like gps. Should use this battery tech on the iPhones doe .-.

    • mrgerbik

      ‘unbelievable battery span’ – rofl unbelievably short

      • Mike M. Powell

        Well idk whats wrong with urs bro

  • Jamessmooth

    That’s a little disappointing, as I was hoping for more than a day. I have the Apple Watch, and I can’t live without it so I’ll most likely upgrade. My friends and family have FitBits, and three of them have had to return for a replacement within a year of purchase because it broke, so that’s not an option.

  • Tommy Gumbs

    I am a Professor and I travel the world. I love my Apple watch. I have only ever had it die on me a few times. I usually get almost 2 days out of my watch, but can depend. Never more than 2 day’s though. I will def get the second version when it is released, but I don’t see that happening in September.