BatchGeo does not support putting HTML in map data, such as to create links or change formatting. 

You can have links in your data following the format http://linktosite.com/webpage.html

These URLs will be automatically recognized and turned into clickable hyperlinks. You can also use the URL / Email column types to create links.

I used to have HTML on my map and it worked fine, now its no longer working, what changed?

We constantly make updates to BatchGeo in order to improve overall user experience. Because we do not support HTML in map data, some of these changes may disable HTML in maps that previously worked. 

Specifically we are interested in the easy copy and pasting of tab delimited (spreadsheet) data, and double quotes are used to escape special characters which might otherwise cause data to be non-parseable. These same double quotes are used in HTML which can be negatively effected by the new parsing routines.