Chosen Solution

I got my iPhone 6S in January 2015. It is still working well except the battery, which I am going to replace. I would like to know if in the past 2-3 years there have been some new batteries compatible with iPhone 6S with a higher density than the original one ? Thanks

No, there are no “high capacity” batteries. You can print whatever you want on the label but the chemistries haven’t really changed over the years. Check out this guide written by none other than @oldturkey03 himself for proof!

hey so I just changed my iPhone 7 battery with a newer one and effectively it worked pretty well for the battery life because it is recommended to change the battery of your device every 2 years. so I can give you a little advice because you cannot find a battery bigger than yours very much so the advice is that you should move some of your files on your computer and delete some of your old apps because the more the phone is full with stuff the more the battery consumption is high so that s your best shot hope this might help you regards

Yes, you can replace the iPhone 6s battery with a higher capacity one. I recently came across this iPhone 6s battery replacement review guide and got Ibestwin battery for my iPhone 6s. It’s amost a 50% hike in the battery capacity as compared to original one.

Once you get it, do replace the battery yourself to save additional costs. If you’re wondering how to replace the battery, check this post from iFixIt experts and you’re good to go!

I don’t know the date the “Myth of high-capacity batteries” article was written that is referenced in the above chosen solution, but there’s a fairly recent one done by a reputable website, the Cult of Mac, in Feb. 2020, where they did the same test with two high capacity batteries and one of them lasted 26% longer. But they also found the other one barely lasted longer. So it’s definitely NOT a myth, but it depends a lot on the manufacturer it seems… Which is pretty hard to know up front, unless you are pretty confident what you’re buying. It’s too bad iFixit does not sell a higher capacity battery, as they could easily do the tests, and then choose one that really gives you more power. Here’s their article, which as a bonus, is based on the iPhone 6s! https://www.cultofmac.com/686299/replace…