TQTHL Samsung Galaxy Note 4 [11800mAh] Extended Battery with NFC & Black Protection Cover Case (More Than 3X Extra Battery Power) Fits All Versions of Galaxy Note 4 - Black

Fandamntastic product. I love the extra size on the phone and the texture of the back is soooo much better for holding the phone. Once I got my battery meter adjusted to the MASSIVE amount of juice this thing holds I charge it over night, I'm on it ALL DAY, and it still is at 25% when I go to bed.If your phone sits at 1% for hours and won't let you take pics or does that auto-dim thing, that's annoying and it means it needs to be re-calibrated for the larger battery. If you are unsure how to re-calibrate the meter in your phone, its pretty simple. Just let the battery completely drain so the phone turns itself off. then charge to 100% before turning it back on. Do this two times and the meter will no longer sit at 1% for an hour because it doesn't know what empty really is.Also I have the fast charger and this thing charges to 100% in no time. That was unexpected.I can honestly say that I plan on keeping this Note 4 for a long time thanks to this battery. Phones that do NOT allow me to change the battery are not even a possibility for me.

I absolutely love this battery! I can literally get 16 hours straight viewing time on my phone, Netflix, YouTube, Hulu, my DVR & live cable TV, Kindle, Comixology, the crazy news; my phone is literally on 16 hours straight. If I actually used it as a phone I think this battery would last a week. I've had this phone since December of 2014 and I refuse to upgrade because of these batteries. Yes, they do add a considerable amount of weight and thickness to the phone but I actually prefer that. It makes the phone easier to hold/grip. The batteries also come with an 18 month warranty and while this last battery I bought (in April 2018) became severely depleted after 4 months of use - the TQTHL people were right on top of sending me a replacement. I'm awaiting it now and will update my review if anything changes. Seriously though, I've bought 2 of these and I have also used the ZeroLemon, and 1 other brand over the years and the TQTHL performs just as well for half the price. While I honestly prefer the ZeroLemon case, I'll happily pay 50% less for 100% of the power using a case that is just slightly less appealing.Like I said earlier I am waiting on a replacement for the one that failed but customer service was extremely quick in responding and gave me no hassle. Full disclosure they did ask me to review the product but I would've eventually as I honestly do love these batteries; my review would've read the same. You can stop researching now and go ahead and buy.*Excellent battery life*Excellent customer serviceP.S. You will have to "break in" or "condition" the battery by completely discharging and then fully charging 5 or 6 times. Some people say to NOT use a quick charger, however my first battery seemed to perform just fine using the Samsung fast charger. The second was fine for 4 months but like I said great company who stands behind their products. I will only buy my batteries from them for as long as possible.

I have had my Note 4 since December 2016 and I still love it. I'm not ready to give it up. I had gotten a replacement battery but it hasn't been holding the charge so I decided to try this Extended battery. The re-calibrating the phone was a slight annoyance but it is worth it to have accurate reading of battery. I did it 3 times and I think it is accurate now. I may let it run out completely and recharge completely a few more times just to make sure. So far so good.It comes with a back case that seems pretty sturdy. I like to keep my phone in an additional protective case and so far I haven't found one made to fit an extended battery. I adapted a case I had and I think it will do the job. It is a wallet case with a magnetic closer, and 9 slots for cards. So that meant it had a wider closing area. I cut off the INSIDE plastic edge that is used to hold the phone, I am thinking the outside edge will help secure the phone. I also put a thin strip of velcro on the edge of the cut plastic. I cut off the inside card slot divider to give more room for phone. It worked! Not perfect but it offers protection. The magnetic closer fits fine to close the case and I still have 4 slots for license or cards. I will most likely take the camera out of the case to take pictures because there seems to be a shadow or obstruction from not having a perfect fit.

Hugely impressive performance compared to the initial performance of my old ZeroLemon 10Ah battery. I'll wait and see how well it does in 18 months, given that's about how long my ZeroLemon disappointingly lasted for.The only thing the ZeroLemon has over this battery is the case. A battery this large on a phone so large, it can't be put into a pocket any longer. The ZeroLemon case resolves this with the belt clip holster and TQTHL should look to do the same. I've modified by ZeroLemon case to accommodate this battery and I now have the best of both worlds. It was worth going through the effort and expense of using a shipping forwarder to have this sent to Australia!

This extended battery worked pretty good for about 18 months, then it started draining really fast. At 22 months of average use I can no longer get through a full day without recharging it several times throughout the day. Also, I made sure to do the calibration they said to do immediately before using it but it did not help. The phone reads the battery voltage incorrectly. I had to power down the phone, remove and reinstall the battery, then power up. The power level would always show an increase on the phone's screen of from 10% to 50%. My Note 3 with extended battery never had this problem.