heir current battery capacity.

If you think you need a transponder, install it now, even if you haven't
figured out how to get more batteries into the glider. By using it
around the airspace where it's needed, you and others will be safer; in
the meantime, you can deal with the design, installation, and approval
issues (and cost) of another (or larger) battery box.

Any LS6 drivers out there with tips on how and where to install a
battery box? There really is no good place as far as I can tell.

Tony V. LS6-b "6N"