ABOARD CGC ACACIA (March 19, 2004)? Seaman Apprentice Gregory Klampt and Seaman Nicholas Cimarossa work to place the batteries inside a pocket on a large lighted buoy aboard the Coast Guard Cutter Acacia. The batteries are charged by a solar panel during the day and provide power for the lights at night. Acacia was in the Chicago area to check and replace buoys for the 2004 Great Lakes shipping season. Acacia is a 180-foot sea going buoy tender built in 1944 home ported in Charlevoix, Mich.