... start I ordered this because my iPhone battery was bad. I received this kit and began to replace ...
339917
To start I ordered this because my iPhone battery was bad. I received this kit and began to replace it. I removed the sim card with a needle because it didn't come with the required tool. I removed the screen with a razor knife because the tool that you would use to do this broke and the 0.8 star driver required to remove the screen rounded off. All in all the tools are cheaply made. Now my phone won't work and I have no tools to fix it. I don't even know if the battery even works. I guess I'm at a loss. I just should have bought a better kit. Idk!
4796406
I cann't wait to use this kit. It is very complete the iphone is waiting for me to fix it.
1011145
My iphone 5 power button had failed, and I brought it to the cell-phone-store (purposely leaving out their name) to warranty it, they said they would need it for a day or two, I didn't want to leave my phone with those people, so I decided to just fix it myself. I ordered this kit and the parts to repair my phone (I also changed the speaker while in there because it had become quiet). I was able to complete the repairs thanks to ifixit's guides and my phone works good as new! There were a few complaints though:

Pros:
-  Star/Torx drivers worked perfectly,
-  Suction Cup worked, although it took a few tries
-  Screw-Holding tray was convenient, really helped keep track of all the tiny screws

Cons:
-  Only one size philips included, there are 3 different sizes inside the iphone 5, so the bigger ones gave me a hard time with the included tiny driver
-  NO Flathead included, to remove the mainboard mounting screws, you need a flathead screwdriver, luckily I had one to use already.
-  Spudgers are weak, one broke while prying on the battery, and the other one bent and will likely break if used again.
3743842
This was the right part needed to get my iPhone 4s working again. It went from holding a charge for less than 6 hours to a full day. The tool kit was slightly different than pictured, but included what was needed. All in all, it took about 10 minutes to swap the batteries.
4589149
I used this kit to replace the cracked glass in my iPhone 3G.  The glass was cracked for a couple of years and I contemplated getting it fixed locally for like $100.  I then saw this cheap kit and thought, what the heck.  I'll try it.  I was able to complete it in a few hours and it works great!  I did have a little bit of an issue getting the paper off of the 2-sided tape that you use to glue the glass to the sensor but once I got it going it worked great.  Very cheap and not very hard to be honest.
2390954
UPDATE - 1/22/2016
DO NOT BUY - iPhone failed to install firmware iOS update from Apple last night. As you know, updates are no longer optional, you can just delay them so many time, then it will update. It went to update, then failed the update giving error code 29 (hardware failure). No matter what you try - it it will continue to fail because it checks battery for special ID. The phone gets stuck in a an update loop until it says that it failed and can't be restored. At the end, the solution was to put original OEM Apple battery back and iPhone restored updated correctly. This will happen every time you update the phone.

==============================
This is a review for iPhone 4S battery.
Item came packaged as pictured at the top of this page. All items appeared to be brand new, not re-used or refurbished. Tools are just fine, worked without any issues. I've followed iFixIt instructions and got the battery swapped in 10 minutes.

Now about the battery: it very close to apple's OEM that came out of the phone, but it's not 100% the same. New battery is of slightly lower quality:
- doesn't hold as much charge as original battery when it was new. This is my biggest issue with this product. After I installed the battery it showed 45% charge, but that number was dropping very fast. After first full charge, it drained a bit slower. It was better than my 4 year old battery, but it was not nearly as good as original battery when the phone was new. I would say it's equal to about 1.5-2 year old battery in terms of it's capacity and ability to hold the charge.
- plastic wrapping is not as tight as OEM, meaning that you may need to tuck black plastic in order to fit the battery into the phone
- the print on the battery is not as clean and is a bit washed out

To sum it up: my 3 star rating is based on two issue with the product
1) Battery doesn't hold as much charge
2) my decision to buy was influenced by the star rating of the product, which appears to be due to a large number of people receiving these batteries either for free or almost free. They don't appear to reflect the actual quality of the product and are biased towards higher rating based on the nature of the transaction - free or discounted price in exchange for a review.

In the end - this battery did give me more run time than 4 year old original battery, but it didn't give me as much as expected or as much original battery provided when new.
762338
My battery had gotten to the point where it would drain after just a couple hours of light use. I had to heavily rely on external batteries and being near outlets. I decided to try replacing the internal battery after I saw that it would cost less than 20 bucks. My phone warranty had already expired, so I took the risk.

The original battery at the time of replacement had 692 cycles and 982/1430 mAh. This new battery after installation had 1395/1430 mAh at 0 cycles. I'm disappointed it is not the capacity advertised, but I guess that's what you get with cheap knockoff batteries.

Some tips for replacement:
Watch a few videos on youtube before you begin
You will probably need a suction cup tool made for opening phones. The suction cup that comes with this kit is very weak.
Use a small dish to keep track of your screws as you take them outthey are TINY.
Wear gloves and keep away from dust to keep internal components as clean as possible.
Beware the adhesive on the battery. You may need to pry quite hard to get it out. I found the guitar pick most useful for this. DON'T puncture or break the battery.
Keep the two halves of the phone steady at 90 angle or less to prevent damage to the display cable.
3502170
Got this for replacement in a Iphone 3Gs and it was perfect. All the tools I needed was there to replace the Battery along with video instructions. It went quite easily and had zero problems. I was very happy with the kit and it was very professional. You can get a cheaper battery kit but usually the kit is missing some important tool that you would need and good replacement instructions to. I would rate this kit 5 stars.
4781307
it all looks new idk if works cause i can't even open the iphone cause the kit doesn't work -.-
2696119
Great product. I had iphone battery issues. it is so easy with this kit. Never again will I get raped by a phone service company.
2556914
I am a retired Toshiba hardware support specialist so I figured replacing the battery should be problem-free.  I followed the vendors instructions word for word and while my IPhone did boot up and I could make calls and access the Internet with the replacement battery, my Home key was disabled.  When I researched this issue (Home key not working after IPhone battery replacement) I found that this is a WIDESPREAD problem with battery replacements on the IPhone.
3659231
The kit comes with a nice new cover and a spanner tool to aid in installing the cover.  The only problem that I had, was actually installing the battery correctly onto the contacts.  They're pretty small and flimsy.  I used a magnifying glass so as not to damage the contacts while installing the battery
2156273
My stock iPhone 5 holds a longer charge than this battery does in my 5s. I was contacted by Stallion and it appears as though they'll be shipping me a new one. I'm hoping it was just a defective battery
Edit- Stallion personally contacted me asking if I was satisfied, I let them know regarding the battery issues and they sent a replacement immediately! The new battery corrected all issues I previously had! Very happy with their product and customer service
3789551
This battery is worse than the one I already had; and the reason I ordered a new battery was because THAT one was bad.
1620959
I was disappointed and got the bad experience with this order. After a month of using, the capacity of the battery is getting lower and lower,  I just can use it 20 hours for one charge ( including 8 hours of sleeping time that I don't touch the phone ). The factory battery I can use more than 26 hours after charging !
451556
My daughter has had her iPod Touch for many years, and the battery just wasn't lasting very long now. I got this replacement battery in hopes it could be salvaged to be used for a few more years. We have a fair amount of experience replacing iPhone screens, so I did not think this could be much worse. Boy was I wrong  This kit does not include any instructions at all (YouTube is very helpful here!) and they do NOT tell you until you begin, that you also need to solder (so be sure to have a soldering iron and supplies on hand) and the tools provideds*ck. I cant totally bash them, however, they are the standard tool set included in most screen and battery repair kits, and also sold separately. NONE of those kits send great tools. They are basically one use quality. This job is not for the weak and inexperienced you need some cajones to crack open this case and remove some guts and put it all together again correctly. My husband said hed rather buy a new iPod than face this job a second time. He never said that when replacing a screen so this must be horrible. For the lack of iinstructions and poor tools, Im tempted to dock some stars. However, since this is standard issue in replacement parts, Ill just take off one. The battery itself seems to be working just fine. This is not advertised as anything but parts, so lack of instructions is a given. (Sadly). I know on iPhones there is a way to test if you are really getting a brand new battery, but have yet to discover it for the iPod. (Theres an app that  tells you how many recharge cycles the installed battery has in its life). To make this a better product, even adding a link to an installation video is better than nothing. Adding higher quality tools would be an even bigger bonus. But since the main part is the battery itself, I feel this is a worthwhile product, priced accordingly.
I did receive this iPod Touch replacement battery at no cost to myself in exchange for my honest review and opinion. I have no affiliation to this company and receive no financial gain. I only leave positive reviews for items that meet or exceed my expectations.
4643493
The kit arrived and was exactly as advertised.  The replacement is easy and painless.  The problem is that the iPhone starts to randomly reboot with this battery.  This is an Apple 'feature', and not so much the fault of the product.

The reason I gave this 1 star is that I want buyers to be aware that this likely won't fix your issue.