Got the MOPHIE BATTERY CASE yesterday & on day 2 of use,so far I am very satisfied with the results.
First, the fit & finish is top-notch & the case provides excellent protection as most other cases do.
For those looking for an ultra-thin solution to extended batteries:
W/the exception of the DROID RAZR MAXX/HD MAXX, it doesn't exist. Contrary to some write-ups on this case, it isn't dainty by any stretch of the imagination . Overall thickness is equal to that of the other extended batteries & accompanying TPU cases avaliable. So, for those seeking the "Thin is in" solution, this isn't it, just save your money & buy a 2nd standard battery to carry around to avoid the wall outlet search in the middle of the day.
The box/packaging states that the case comes pre-charged & the indicator lights showed as much . Also, no pre-conditioning is necessary or mentioned,another plus.
One more benefit of the MOPHIE case vs. most other generic battery cases:
This one DOES NOT OVERHEAT during use or charging.
First day results were OK, but, day two is proving to be better due to the following:
On day one, I followed the manufacturers recommendation by having the case in stand-by mode & not activating the battery case until the phones' battery runs low (I ran it down to 10%).
This also seems to contradict another statement that MOPHIE gives wherein they state the battery case juice is not as efficient while charging the phone . Total run time seemed to back up this theory.
So, I did things a bit different on Day 2:
I again started out w/a fully charged standard battery & charged the case separately overnight (w/the provided USB cord).
However, this time, I opted for activating the battery case & use all of its juice & then run on the phone battery thereafter.
I got about 6.5 hrs out of the battery pack before the stock phone battery took over. I'm currently on the 3rd hr. of use on the stock battery w/76% remaining.
As my battery life seems to be on the low end of the spectrum as compared to others who've posted in the SGS III forum,most can expect even better results.
I'm confident this MOPHIE BATTERY CASE, albeit a bit pricey, is a solid investment for anyone desiring longer than stock battery life. It has a 1yr warranty & most certainly the pricing should drop, just like everything else after initial release.
I'll update this review after a few days of use during a work/commute day.