when I add hyperlinks in K2 items, these get stripped by K2 Accordion Module.
How can we have links in content displayed by this module?

Hi Serge Balmer,

if you use the version of sj k2 accordion module for Joomla17 and Joomla25, you can choose the parameter "Keep HTML" as "Yes" to show the hyperlinks of K2 items (see the attached image).

The version of sj k2 accordion module for Joomla15 is not supported to display the html tags (ex.hyperlinks) in K2 items now.

Thanks