Love the additional battery life.

The battery life on the 7800mAh is pretty amazing, I'll tell you what

I like the product, the battery life last longer

Greatly improved battery life, but it disrupts the phone reception.

Pros: Fabulous Battery life

Turns my phone into a brick, but the battery life is so good I don't even mind

The battery life is good.

, I believe 5200mAh,and the battery life is great and still have good service

The battery life is awesome, but it kills my signal strength.

No malware "Battery life saver app" bullcrap, no running back to your charger, or asking if anyone has a spare

Yes, the battery life is incredible.

The battery life is great, the case is a little loose on the sides of the phone that bothers my son a little.

While it worked I did enjoy the longer battery life.

The battery life is amazing

however my battery life was no longer good, I was getting annoyed with having to charge it multiple times per day

However, battery life is awesome.

Have been using it for the past 2 months, battery life is great even with heavy useCons

Battery life was very good..but it made my phone get no service in many locations

My only gripe about my Samsung Galaxy S4 was the horrible battery life; I was charging it twice a day, and not even using it much.

Over all, the battery life is excellent, case fits well and the appearance is very acceptable.

Makes the phone heavy though does extend battery life pretty well.

The battery life is great and the fact that you get the cover included makes it more great

Cell phone battery life is not remotely concerning to me anymore

The battery life is great which is what I expected after reading all the reviews

I just want to say that I a technology lover and my honest opinion is that samsung galaxy s4 is awesome but the battery life is extremely limited; this product will fix that problem 100% it simple words, if you do not mind adding a little weight to you phone this product is PERFECT and it really delivers quality and not to say the super fast shipping.

A great product!Pros: Great battery life

A great product!Pros: Great battery life

its pretty good as far as the battery life goes

abd I can honestly say the battery life is outstanding.

the battery life is amazing

Battery life has been great, yes it is a little more bulky, but the battery lasts me at least 2 days if I wanted

viable).PROS:-Battery life lasts quite well with normal usage (outside of heavy video streaming, not a dealbreaker)-Battery itself isn't that large or heavy (rationally for what it is)-Grippy sides are PERFECTCONS:-Case is larger and heavier than needed.

Battery life is simply mind blowing

The battery life on my Samsung Galaxy S4 has greatly improved thanks to this battery pack.

The grip is good, the back fits well, and the battery life is great.

Battery life is absolutely incredible!

The concept is good, and the battery life is amazing, but for the price I feel like the case should fit the phone better and audio functionality should not be impeded.

The battery life is incredible

I recommend this product for all Samsung S4 users its a must to have for better battery life

Battery causes me to loose signals , its good for playing games, because the battery life is good , but not for phone use because it makes you loose the signal

battery life is amazing, 2 days worth of moderate to heavy use, over 4 days light to moderate use

Battery life is great

While the battery life is really great, the battery is affecting my phone's 4G & Wifi signal significantly.

The battery life with this product is phenomenal

I really liked the long battery life, but now after owning it for about six weeks it doesn't seem to last any more.

The battery life is awesome, but it kills my signal strength.

I love the battery life, but it's size interferes with the phone signal

But this is minor issue and the battery fits perfectly and is delivering what I expected....much longer battery life!

But the battery-life is great.

Pros: way more battery life

The battery life is amazing and I wish that the new Galaxy phones had removable batteries so Anker could make this for them.

Triple battery life allows much more freedom of use with my S4

Doubled my battery life.. protects phone and looks good

Greatly improved battery life, but it disrupts the phone reception.

Pros:-Fantastic battery life

I prize battery life over form

it feels like it tripled the battery life.

The battery life is good, but the back of the case is glossy and already looks used after 1 day of use

It will make your phone a bit heavier and thicker, but the battery life is worth it

I love the extra battery life, but my signal is lower when I'm using this battery

He loves the added battery life.

No doubt, the battery life is absolutely incredible

The battery life is a promised and I never have to worry about a dead phone.

Your phone feels like a brick with this battery and case installed, but the battery life is amazing!

I would recommend this product if battery life is more important to you than a sleek, light phone, NFC, and perfect signal.

First charge lasted a week then after that it seemed the battery life died down like crazy to like 3 days almost made the no screen protection not worth it anymore

Battery life is great, the fit of the case is so-so, it wants to come loose from the top but overall a good purchase.

The actual battery life is great

Battery life is great but, this battery does affect the reception

Pros:-The battery life on this thing is fantastic

Battery life is decent when using this with a Samsung S8 and IPhone

When I first started using it, the battery life wasn't that super, but after a few cycles I was seeing better battery longevity

wow, my battery life is incredible, i can use all day bluetooth (to conect with my smart watch sony sw2), use my gps (at least 4 hours at the day) and the wifi on and the end of the day (6am to 10pm ) have 45% of the battery charge.

The phone now works exactly as it is supposed to!If you remember Nokia phones from a decade ago that lasted a week on one charge, this battery will remind you of that long-forgotten feeling.

I didn't see any changes in performance of the device or anything that is not working as it was before start using the battery.

lots searching during the day with the screen as bright as can be for 3-4 hrs

Works great, only complaint is that the case doesn't hug my phone as tightly as I would like.

I do recommend this battery as I can go days without recharging.

An awesome battery better than zerolemon (y)