Genuine Samsung Extended Battery Kit for Galaxy S2 - 2000mAh
T-Mobile Galaxy S II Galaxy S2 3400mAh Replacement Battery: BatteryClerk.com
X Power 3600mAh Extended Battery + Black Battery Door for Samsung Galaxy S2 GT-i9100 (not for Sprint or T-Mobil) - Walmart.com
Jinsuli Replacement Extended Backup Thicker 3500mah Battery With Back Cover For Samsung Galaxy S2 Sii I9100 Black - Mobile Phone Batteries - AliExpress
Seidio Innocell Extended Battery For Samsung Skyrocket I727 AT&T Galaxy S2 S II 898334041321 | eBay
Genuine Samsung Extended Battery Kit for Galaxy S2 - 2000mAh - White - Mobile Fun Ireland
Amazon.com: NP99sp Battery Kit for Samsung Galaxy Tab S2 9.7 SM-T813, SM-T810, SM-T815, SM-T817 with Tools, Video Instructions, Extended Life Battery from NewPower99 : Electronics
Momax 2700mAh Battery Extra Power - Samsung Galaxy S II i9100
Ciszean 3500mAh EB F1A2GBU Extended Battery + 2 Optional Color Cover For Samsung galaxy S2 II I9100 GT i9100 Black White|extended battery|battery eb-f1a2gbubattery for galaxy 2 - AliExpress
3600mAh Extended Battery + White Battery Door + Universal Dock Wall Charger for Samsung Galaxy S2 GT-i9100 - Walmart.com