Congratulations, You've answered correct question to Yourself Furthermore, if You don't need bq27x00, You can add it to '/etc/modprobe.d/blacklist' (ls files there, kp got also own blacklist with different name - thus, I've heard that it's filled automatically with content of '/etc/modprobe.d/blacklist', can't confirm or deny that), and ensure, that it *isn't* listed in '/etc/modules'.

If You don't know if You use bq27x00 or not, it means You don't use it, and can safely blacklist.
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As for Your mounting/unmounting problem, after successful enumerating, click on "enumerate", then, after a second, click on "mount" again (it's little confusing, I know - say hi and thanks to package maintainer for not uploading new version without any rationale, because AFAIK there are better solutions prepared already).

If it doesn't work anyway, it also can't unmount already. Just call (as root):
...and You're done. Of course, be sure to check if You try to umount the same /dev/ that You've mounted...

/Estel