Has anyone bought the oem extended battery case or tried others?

[Hypeber]

as Title!

 

[NZtechfreak]

My Mugen extended battery with rear casing is shipping to me now... review to follow.

 

[Spewy]

I got one off ebay which stated 2430 MAH but performance is only equal to my stock battery maybe a little less. Good as a backup suppose.

 

[lotus49]

I got one off ebay which stated 2430 MAH but performance is only equal to my stock battery maybe a little less. Good as a backup suppose.

Unless I am mistaken, you are referring to one of these

2430MAH HIGH CAPACITY GOLD BATTERY FOR I9100 GALAXY S 2 on eBay (end time 29-Jul-11 21:47:21 BST) whereas the OP means something like this

3500 Extended Battery Cover Fr Samsung Galaxy S 2 i9100 | eBay.