It's great for me because I can have some really long days with work and social life and its nice

I am using this on my 2 year old Samsung Galaxy S4 and get excellent battery life

love it bought s4 great battery life after update 4.4.2 battery life

Amazing battery life

It has great battery life

Amazing battery life

its giving me good battery life and lasts long with not too much thickness

thinking it will give me decent battery life than an external battery pack, that was a big mistake

Better suffer short battery life than internally broken digitizers

Pro: Great battery life as advertisedCon

I can say my life is now easier thanks to this product

Amazing battery life, but it's very bulky

Gave excellent battery life, however, I lost a few signal bars

Awesome battery life for the first

I don't have keep worring about if I have enough battery life to get me through the day

Good product that does offer very good battery life.

It does make the phone heavier and thicker, but it is an acceptable compromise for the great battery life.

This battery does have excellent life.

It had good life and lasted easily 1 day with heavy use

im more of a moderate user so that is amazing battery life... and the best part that

Your a life saver

Awesome battery life, but you have to remember that the is more charging after the indicator reads 100%.

easily i contacted them by email and they will send me the black protector for free,otherwise with not issues ,,getting good signal,good battery life for 3 days with heavy uses

Of course the battery significantly improves the life of the phone but a huge drawback is that it takes away 1-2 bars of signal

Excellent battery life, last 2 days for with over 9 hours of on-screen time, worth the $40 and makes everyone jelly about my power.

Insane battery life

When I bought it at first it gave me great battery life

Not as much life as I expected, but an additional four to six hours was still not bad

The best battery life I have seen is 2 days 17 hours.

I bought this for Pokemon go to have enough battery life

However, the power and battery life it provides is great

This thing is a beast of a battery............... 2 days 10 hours of solid life on the first charge

good battery life plenty of power all day long

It is an EXCELLENT battery to extend the life of your Galaxy S4, very reliable and tons of juice to it for the whole week.

Great battery life

I'm a heavy user, and this phone can get through a full day of my brutal work and personal life.(lots of surfing, GPS, music, etc.) with charge to spare

Good battery life.

I really liked a couple things:Great battery life

Amazing battery, great life and feels good in hand eventhough it's heavy

I noticed that I was getting insane battery life on my galaxy s4

it gives you excellent battery life!

Awesome battery life

i think it would be great to let future customers know that before order.20 euro wasted!!!product is good battery life is great.sound from sgs4 speaker not so great

Amazing battery life

All in All, I love the super long battery life.

Great Battery life

Also it is well designed and judging by the S3 battery, will have a long usable life

use,-It has great battery life, making the phone last much longer in road trips and vacations-The added grip is manageable for me, still pocket able and comftrable to hold once getting used to it-the ability to simultaneously charge the case and the phone is a great feature that absolutely deserves to be noted-The easy slip on/off mechanism of the case makes it very usable in different occasions, for when you need just a little bit of juice, vs when you need to go from 0-100.-Samsung Pay works just fine with the case on

Awesome huge battery for the S4, I had enough battery life for about 3-4 days of regular use

Great battery life

I hope the product lifetime is good as well, because I am enjoying not having to recharge my phone each time, or having to wonder if I have enough batery life to enable my GPS

Like I said, a really strong battery with good life that renders the phone useless for any kind of network usage

I love the battery life and how the phone sits in my hand now

Purchased for my son's S4 and he loves thebattery life.

Have you ever been frustrated by dismal battery life on your Galaxy products?

Great So far good battery life a little heavy but gives the phone a more solid feel and grip

Great battery life and back cover to go with it

Not only does the S9+ already have a decent battery life, this just makes it so that your phone will indefinitely survive the day, and some of the next day as well

Good battery life, wrap around case holds the battery to the phone.

Excellent Battery life

Great product great battery life very decent price for it all

I love the extended battery life, however, the added weight is a but to much.

great battery life, this should be the stock battery for every S4

Great battery life.

Crazy long battery life

Good battery life