Buy a new Apple Watch or just replace its battery?

Apple Watch batteries use lithium-ion technology. Compared with older generations of battery technology, lithium-ion batteries charge faster, last longer, and have a higher power density for more battery life in a lighter package. Of course, all rechargeable batteries are consumable components that become less effective as they chemically age. So, when you Apple Watch won’t hold a charge for as long as it used to, should you buy a new Apple Watch or just replace its battery?

Apple Watch Series 7 teardown (photo: iFixit)
Apple Watch Series 7 teardown (photo: iFixit)

Jake Peterson for Lifehacker:

Apple Watches are impressive little computers, but they don’t last forever. After enough time, the battery starts to go, which can ruin your chances of closing your daily rings. On top of that, the watch starts to slow down, to the point where you think you’d be better off upgrading to the next Apple Watch generation. But instead of buying a whole new watch, you should consider simply replacing the battery.

It might not be obvious from its inaccessible design, but the Apple Watch is perfectly eligible for a battery replacement when it comes time.

A fresh battery pack will, obviously, give you longer battery life, but it can also support your Apple Watch’s hardware better, potentially increasing performance throughout the day…

That said, it’s not an easy feat.

MacDailyNews Take: Find out more about your Apple Watch battery and performance via Apple Support here.

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[Thanks to MacDailyNews Reader “Fred Mertz” for the heads up.]


  1. If one gets lost in the wild for more than 48 hours, doesn’t the Apple Watch become useless? Hey Apple, how about adding a solar battery that keeps working when you REALLY need it?

  2. I’ve replaced battery on several iPhone models, including first gen (which required soldering battery wires). This doesn’t look that much harder, just smaller 😵🔎 Mine is Series 3. It’s still being sold as new (until next Watch release in Fall), so official servicing will be available for 5+ years. Apple Support website says out-of-warranty battery repair is currently $79. IF I want to keep using, I’ll probably let Apple do it. There are a few reason I may want to keep using. Since it’s Series 3, Apple will likely continue watchOS support for a long time. My primary use (beyond telling me the time) is track my running, and it does that perfectly fine. And it’s the smallest and lightest Watch (at 38mm).

    It’s tiny battery seems to be going strong. Maybe those original “Series 0” $10K (gold) Edition models need new batteries by now 😉

  3. Just buy a solar battery charger, genius. And take your charger cable with you. Also the watch tells the time for 72 hours, when it’s flat just press the side button for 2 seconds. Snowflakes these days, so hopeless, don’t know anything about their tech, don’t have the brains to think of lateral solutions. Just pathetic.

        1. If you think an electronic wrist gadget will save your life in the wild, then you have no business going further than the metro parking lot blanketed with cell towers.

          To enjoy the wilderness, carry the 10 Essentials and ditch the electronic junk. You might experience something new if your nose isn’t always hovering over a touchscreen.

    1. @ “Stop being pathetic losers…” Why be so harsh? Or are you the type that publishes “snark” comments because you can’t get people to talk with you otherwise, and you look for any reaction, even a negative one ? You think others are pathetic? Try looking in the mirror. 🤷

    2. We’re not all as perfect as you are! Your nasty comments says more about you than the ones you judge! I’m sure you’re inept in other areas in your life! Blah, blah, blah…

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