ok, just got back from camping at robin hill campground in PA, i charged the battery befor we left for camping with a trickel charger. friday night it was fine everything was working great, saturday at about 1pm the radio stoped working and the fridge stoped working and the ac wouldnt work rite the fan would work but as soon as the compressor would kick on the unit would shut off,i cheeked the battery and it was dead. had to run to cabelas and buy a new battery. put the new battery in and everything worked great again. why is my battery not recharging when pluged in?? it charges when hooked to my truck. this was our 3rd time using the camper. any imput is appricated.