7500 mAh Battery for iPhone 6S (Upgraded New Version), Ultra High Capacity Replacement 0 Cycle Battery with Professional Replacement Tool Kits

Forget the official 1700mah Apple battery, it's tiny and totally obsolete these days. I've had my 6S's battery officially replaced at an Apple store a few times for $60 each time, and in hindsight it was a waste of money. In addition, the Apple "genius" was totally wrong and told me the battery health does not go up to "100%" in the settings, which of course it does. This battery has far more capacity and for the first time since I first got my 6S, I don't have to constantly be charging it. Goodbye battery anxiety. This has been a massive relief. I don't even have to charge it every day! Installing the battery was a fun little project and not very difficult to follow along with the tutorials. The only difficult part is cleanly pulling out the adhesive strips under the battery to remove it. This kit comes with all the tools you could need and then some, including precision tweezers. It's really an incredible deal for the price. This kit should cost double this price. My only regret is that I didn't buy this sooner. This has added at least a couple years to my 6S's life, and I hope to do a factory reset next to extend it even more.

Battery installed very easily. Very nice multiple tip aluminum screwdriver. Everything needed for replacement was supplied. Battery life seems to be good. Fit was perfect.

Was a bit intimidated going at this upgrade, but with some good YouTube videos for reference prior to starting and little to lose with an old model phone I figured it was worth a shot. The original battery would last only a couple hours at best, even less if playing any games. Upgrading with this very well designed and complete kit is as easy as it gets! Realized I was already missing a screw on the case when I started, but otherwise everything went as planned and I hooked up all the ribbon cables BEFORE attaching the new battery as many recommended. The result is a like-new phone! Battery lasts all day or more, settings show 100% capacity now even months after the upgrade so mission accomplished, and highly recommended for those on the fence. A+++

Noted battery had 45% charge after installation, after fully charging Battery Health indicated 100% capacity. Screwdrivers provided fit screw heads perfectly also I especially liked the tweezers provided, the tips are very thin for easily setting the screen and battery covers in place and also shaping the battery connector bend for the correct spacing. I used a razor knife to lift the screen, so I cannot comment on the provided plastic tools. The battery adhesive strips provided were easy to work with. After several days of usage the battery life seems as good as the original and maybe a little better.

I got this kit the same day my battery died and got it in by 4pm in the afternoon. I like Amazon fast shipping because I was in dire need of this battery. This is the second battery I have replaced myself. Batteries that are available keep getting higher mAh. The original mAh for the iPhone 6s was 1800mAh. My first diy replacement was 2200mAh and that was a good battery that I chose by looking at online reviews (non Amazon) and that lasted quite a few years. I milked the last year, I should have replaced the battery sooner. When you have an over-amped battery the iOS will keep saying your battery is at 100% even when it is shutting down your device and overheating way at the end and really affecting performance. So that is good to keep in mind. This battery is rated at 3300mAh I believe. This is probably a real rating, or close to. These "over"-amped batteries are a few millimeters larger and they use thinner layers in order to get more mAh in the battery. The thinner layers are probably more fragile and while you get a bigger battery while it works, the thinness of the layers may actually make your battery fail sooner. We'll see how this one holds up.The kit was good, even though I didn't need all of it. I liked the screw driver tips because I already have a 39 tip set with a nice handle and I can use these tips with that handle even though the included handle is pretty nice for a kit. The suction cup was a little rough, but it worked. The spuger and plastic pics were nice. They even include a sim drawer poker which I needed to use as my iPhone 6s was down for about 8 hours, and that apparently causes problems with the 6s sim chip and you lose service. Turn off phone, pop out sim chip, wipe, return, and restart and service should be restored. I did have a problem with the screen gasket tape. It is late November and the gasket needs to be a little warm or it won't stick and naturally it wasn't sticky at all. I already had my screen re-plugged in to test connections and I should've had the sticker on there first before connecting the screen. Not wanting to wreck anything, I ran out of patience and just didn't use the screen gasket. Maybe next battery with better planning and summer weather or a hair dryer or something to preheat the sticker gasket.UPDATE: Battery is still going strong. I was having issues with the battery running down too quickly already, but then I left it plugged in longer and apparently it keeps charging up more past when it says 100%. This is because it is more amps than a regular stock replacement battery and the phone OS really doesn't recognize everything. So after leaving it overnight and longer to charge, I restarted the iPhone to reset the battery readings and now my battery lasts a lot longer. I think it has been two years. I am really pleased.

This is a horrible battery. I didn't even have it in my phone for one day and it was having temperature warnings, shutting down on its own and not letting me connect to Wifi. I would like a complete refund even though I have to keep this battery in my phone because the original battery is disposed of now. Thank you.

Good kit. No instructions.Don’t be fooled. Putting a new battery into an iPhone is a complicated, tedious, and time consuming job. It took me over two hours. The screws are tiny: smaller than a period on a printed page. They are the smallest screws that I had ever worked with. You will need still hands, excellent vision and a hell of a lot of patience. Don’t just watch one YouTube video, watch 5. It is easy to break or bend parts. Record your disassembly with another phone to ensure you can put back together what you have taken apart. Be very careful not to lose the microscopic screws. Be aware that they come in several sizes and it’s easy to mix up the screws. Those little screws can go flying. Be careful of the old battery. Mine was swollen which is dangerous. Never cut or stab a battery or it will catch fire 🔥 and possibly explode.