Sunwuun 2900mAh Galaxy S4 Li-ion Replacement Battery with NFC Function for Samsung AT&T I337, Verizon I545, Sprint L720, T-Mobile M919, R970, I9500, I9505 Galaxy S4 LTE I9506

Your browser does not support HTML5 video.  My Galaxy S4 has been in use for 5 years. But since last week it has always shut down automatically when I called. The battery is very fast when watching video, surfing or GPS driving. I am not willing to lose my phone, so I think I need to change a battery.After I read the comments on the original alternatives, many people felt that the battery was running fast, and I decided to try this. I am very happy that I have chosen the right product.First of all, it is simple to install and fits perfectly. Secondly, it runs longer than the original battery, whether it is used or carried. Anyway, the phone is working as expected and the battery holds for at least a day of use if not a bit more. At this time I would recommend this battery.

I used and changed batteries in my Samsung s4 several times. It died fast after long-term use.This time I decided to give a try of this battery. As we known, mostly cheap alternatives do not have an NFC antenna. But this battery in this store has designed the NFC antenna as part of the back cover. I can use Android Pay, Samsung Pay or other NFC-enabled applications.I charged the battery according to the instructions. Frankly speaking, the new battery last more than 40 hours of use, and the speed and operation are very fast, highly recommended.

I bought the Sunwuun 2900mAh Galaxy S4 Li-ion Replacement Battery with NFC Function for Samsung AT&T I337. I have to say this battery came just as advertised. Easy installation, charged right up to 100 percent very quickly, and it held its charge longer than I expected. The last battery I previously purchased from a different manufacturer did not perform well early on and it eventually died completely, so I could not even turn on my phone. So I am extremely happy that I chose Sunwuun to buy this battery. I would highly recommend Sunwuun to everybody looking for a superior replacement battery for your for your cell phone. Check out Sunwuun!! You won't be sorry.

Would have appreciated a note that highlighted the need to use battery as is straight from packaging and to let it go to zero charge before charging to 100% and then to follow this practice for the next five cycles. I read this during other reviews of this product, so knew to follow these procedures. Battery is a drop in and go replacement for Samsung OEM battery.

I have my wife's old cell phone, I got it a couple years back when she upgraded to a new phone. I started having issues with the original five year old battery, and needed an affordable replacement fast. Amazon got this to me in very short order, and the phone works fine and maintains a full charge - all for a reasonable price. I consider this money well spent.

Exactly the battery I was looking for I wanted an extra battery for a trip and ended up using this one the entire time because it had a longer battery life than the original

Bought for my Samsung s4. First one I bought was NOS(new old stock) and would not hold a charge just like the one I was replacing. Waste of money. Read some reviews and bought this one. Great buy, fast shipping and holds a charge. I would recommend.

Lasted less then 3 weeks!!! Does not hold anymore!!!!