ok, so i had my truck and trailer hooked up sitting at work, i left the 4-way flashers on because i was parked close to the edge of the road on a bad corner. I came back an hour and a half later and the lights were "half flashing" a lot faster than they should be. i turned them off, then went to start up the engine, and it wouldn't even turn over, it just "clicked". so the home owner used his car to jump mine. i ran it around the block and went home, turned it off, then back on again, and it started right up. The battery gauge was where is should be once the engine was running. Is it time to replace already? or was the draw from the trailer flashers too much for the battery? the current battery is from 6/2005. oh, and once the battery charged up a bit, the flashers worked normaly.