[Galaxy S 4 Accessories] frypan:
Hello there

I recently wrote a review on ZeroLemon Galaxy S3 battery and now have one for Galaxy S4. Been upgraded to the S4 lately (gf gets my S3) and found the battery being a bit pale in comparison to the S3 (software issue?). With my past positive experience using the ZL S3 7000mAh battery, I want to give this one a try too.

7500mAh Black:

http://www.amazon.com/gp/product/B00CXZI3DQ

7500mAh White:

http://www.amazon.com/gp/product/B00CXZI4WQ

DIMENSION

ZeroLemon with included TPU case:

Length: 14cm

Width: 7.1cm

Thickness: 1.6cm

This is nearly identical to the ZL Galaxy S3 battery in terms of dimension. Camera and LED portion of the case is neatly flushed out and images are clear. The case wraps around the phone like a nice glove. Hopefully the rugged version comes out soon as I hear they are developing one

I geet some messages about the speaker. Hope this clarifies

- The speaker gets cover by the battery at the back

BUT

there is approximately 0.02mm gap between the battery and the speaker which allows the sound to travel to the bottom of the phone case (see case picture below).

In fact, this makes the phone

LOUDER

when the phone back is faced down compare to the original back cover. ZeroLemon somehow able to engineer the battery + case to make it sound louder which is very impressive. I thought the S4 speaker design is pretty stupid espeically when you try to watch a movie and sound is shooting backwards away from the phone. This design shoots the sound to the side of the phone like how iPhone does it so you won't be muffling the sound by your hands (which happens with original case) when you have your phone in horizontal mode

THICKNESS

This has the exact same thickness as the galaxy s3. If you are familar and use to the ZL S3 battery like myself, you will find this just as well

WEIGHT

Since this is a bigger battery, the weight increases around 40g on the phone. In fact this phone is lighter than the Galaxy S3 suprisingly even with the larger capacity battery inside. Probably because the S4 is lighter than S3 in general

PEFORMANCE

If you are spoiled by ZL Galaxy S3 performance, then you definitely need to pick this battery up too for this is the biggest battery you can get so far. Gets me through 2 and a half day easily. This is an initial review so I will give more update later on continued performance. NFC also works well and reads my old GS3 phone.

No signal loss with this battery installed. Original cover gives me Signal = -89dBm, This extended battery gives me Signal = -88dBm. I'm using AT&T 4G network. For Wifi I used the wifi analyzer and the graph still looks the same with both battery. GPS works too and locate my location accurately. I haven't taken the phone out for trip yet. This weekend to Yosemite so it will be a testing ground for my GPS. IR works well too. The cutout for the IR receiver is correctly position in the case.

UPDATE July 3: Epic is the only word to describe this. After the Galaxy S3, I didn't think ZL can top it off but they did. This thing can run 17 hours screentime on auto brightness.

Done a road trip and with GPS at lowest brightness, 20 hours! Yes, 20 hours run. This battery is unstoppable!

Some people asking me about the case, the case is just as good as the Galaxy S3 version. At least you don't have to go out and buy an extra TPU case unlike the hard plastic cover extended battery

NFC

NFC works well. I tested this with my gf's S3 with original battery and also the ZL S3 extended battery. There's no problem whatsoever.

It's around 39 bucks for this zerolemon battery right now and it's the same price as their Galaxy S3 battery. That's an awesome deal!

This weekend i'm going on a trip so I can test this beast out and see if it's a weekend warrior like the Galaxy S3 version along with the GPS accuracy.

Next week I will take this out for a CBA battery analyzer test.

Front facing

nicely flushed

Grills for sound coming out of back speaker

Gap between battery and speaker to allow sound travel to back

Battery without case

CONCLUSION:

39 dollars is totally worth it for this battery. This thing just keeps going and going. I also have the 5200mAh extended battery from other manufacturers but I'm less incline to use it because it doesn't have soft plastic protection around the case. I dont' want to fork another 6 bucks for a tpu case on those extended battery too. This really gives the bang for the bucks :)