do they make cases for extended batter

[nightwinger5]

do the make phone cases for the htc eris that are compatible with the htc eris extended battery

 

[LoneWolfArcher]

do the make phone cases for the htc eris that are compatible with the htc eris extended battery

Never seen one. But you might want to check the place that sold you the extended battery. They'd be more likely than anyone else.