I'm assuming you've grouped by site?
You're only excluding records that contain battery in the description, not groups.
First of all create a formula as follows (for examples sake we'll call the formula "Battery";
if IN_Part.description like "*battery*" then 1 else 0
Now, goto Report > Selection Formulas > Group...
A new formula dialogue box will appear, in there enter the following formula;
Obviously replace the field names with those relevant to your table. Then only sites without a battery record should be displayed.
Regards,
Ryan
Edited by rkrowland - 18 Jan 2012 at 11:53pm