New battery case from incase worth it?

[rud3bwoy]

Case-Mate iPhone 3G / 3GS Fuel Lite - Battery Extender Case (Case-Mate CM010092), Apple iPhone 3G / iPhone 3GS Cases, Holsters, Skins, and Accessories in Premium Leather

one thing that i did not like about the old one is that it was very bulky,this one is very slim and it cost only 50 bucks,20 bucks more than a regular slider with no battery,you guys think its worth it?

[after_burners]

been looking at these myself but going for this instead

Portable Power Supplies - Portapow USB Battery

[fastwanabe]

Need to fix title...... Incase and Case-Mate are two diff company.

[Remember God]

try fastmac.com has 3100mah iphone battery case with flash light and extra usb port for dual charging
or neotek 2400mh solar case (ebay)
or mobile power station (solar) 2100mh (ebay)

try fastmac.com has iV for iphone, 3100mah iphone battery case with flash light and extra usb port for dual charging
or neotek 2400mh solar power case (ebay)
or mobile power station (solar power) 2100mh (ebay)

the fuel lite battery case is only 850mh...really really small...not worth it at all
the mophie is bigger at 1200mh but even that doesnt recharge back to full capacity from flat. the ones above are the best i have found so far
go for the solar if u like to recharge without power point...and have lots of sun (i live in austrslia so its a good one for me)
or if u really want battery capacity go for the iV for iphone

[Remember God]

imaxpower.com has the best battery case ive seen by far .... 5500mah charge 4 times over before recharging case, and its not bulky either, very reasonable shape...much better than the iV

edit..
just recieved the imp550 from imaxpower.com, the box actually says 5000mah yet it is advertised on the website 5500mah, dont know whats up with that...but still, it holds a great deal of power. the case is a little thicker than i expected (about 2-3mm thicker than most battery cases) but for 5000mah im not complaining!!!
if u want a decent battery case for travelling go for the imp550, u could have it running video non stop from australia to england and still have plenty left over. (38hrs video playing time) you could get there and more than half way back without recharging from a port!!!.

i also found details of the zipcharge by freeplay which uses lithium cathode that has the fast charge capability, charges the 1100mah external battery in 10mins, very handy if ur on the go alot and dont have time to leave ur external battery recharging.
Note: charging the zipcharge from a port takes 10mins, but i think charging the iphone from the zipcharge takes normal time frame. since the iphone is regaular lithium ion, not cathode and doesnt have the fast charge capabilities