Sweeney
Administrator
Yeah! If you have one of the old chargers, these are temperamental. In my '12 model the charger ate itself -- lots of capacitor juices. It has been told to me that the Battery Tender is not happy when attached to failed or failing batteries.
I'd be sure to check to see if the onboard charger is working. Using a volt meter or the battery gauge, check the voltage with the trailer unplugged. Plug it in, you should see an voltage go up -- at least to ~13.3 volts, the charging voltage of a battery. if there is no change the on board charger may have been damaged.
Nothing worse than a battery being sucked dry, which would happen to your NEW battery if the charger isn't working correctly --- see the O.P. for his story
I'd be sure to check to see if the onboard charger is working. Using a volt meter or the battery gauge, check the voltage with the trailer unplugged. Plug it in, you should see an voltage go up -- at least to ~13.3 volts, the charging voltage of a battery. if there is no change the on board charger may have been damaged.
Nothing worse than a battery being sucked dry, which would happen to your NEW battery if the charger isn't working correctly --- see the O.P. for his story