[charlie_the_tuna]

so I put my battery on a load tester and it reads good. when the truck is running the voltage gauge shows 14+volts. I drive the truck about 4 minutes, twice a day, to and from the station. now, after 3 or 4 days, the battery gets run down and it doesn't have enough power to turn over. HELP!! is it that i'm not running it long enough to charge it up??