Second test day:
Same scenario :/
After 1 hour:
-iPhone: 100%
-S2: 96%
After 1:30 hours I decided to use the devices a lil bit, since people said the battery levels on the iPhone could be wrong.
I used:
-App downloading
-Mail checking
-Fruit ninja
-Browsing
After that:
-iPhone: 98%
-Galaxy: 84%
Now (~12 hours):
iPhone (with heavy whatsapping): 77%
Samsung Galaxy S2: 15%
So I loved the phone but this battery situation is outrageous.
Really? This sh!t should work properly from day 1. Users don't need to do that kind of testing and also they shouldn't be looking for better batteries on ebay.
Really disappointing.
Looking at those results, the only way to tell whether the batteries of both phones are functioning at its optimum performance
(a risky endeavor considering the following suggestion might wear your lithium-ion battery's lifespan - so you've been warned...) is to
use both phones to the point of critical battery status. A phone whose battery is not calibrated properly or is worn out / damaged will shutdown unexpectedly within 5%-15% of remaining battery life. On personal experience with older phones and some recent models, phones with proper calibration commonly die within the battery state of 1%-3%... Consider this in your next test.
You'll need to see what apps are installed and running in the background as "services" in the iPhone and also your samsung phone. The more background services you have running, then most likely your battery will deplete faster. These services tend to make biased and inaccurate battery benchmarks so if you got a good grasp on the phone settings, then terminate all 3rd party app services on both phones except for the phone's main services on your next test.
Both phone's OS fancy bells and whistles like home screen animation etc. (and stuff like widgets) should be considered prior to testing. My recommendation is to turn all settings on, and widgets OFF in both phones and see how far your phones will go... if you're benchmarking of course.
Wont say much about phone features because everyone knows stuff like GPS, WiFi etc reduces battery consumption greatly in long periods of use. The only thing technical I'd like to point out, is that for some features (such as WiFi/Data Network) the polling refresh timing and scanning power in scanning new WiFi access points or obtaining internet access directly from your network provider's data network is OS based. From personal experience, those values are normally hardcoded in phones firmware and are different with each manufacturer. There's nothing much you can do about changing that unless you're a ROM developer or a knowledgeable phone hacker/tweaker/enthusiast... all I'm saying is, that different manufacturers have different settings... and this affects your phone's battery in a way.
But if you're still not happy... you can always return the phone back and make a complaint to have the battery replaced... or phone, I'm sure the shop you bought it from will have no qualms with you on this.
