Originally Posted by new2TT
new to TT and probably my fault here. brought my jayco home for first time and used the power jack to level when off the grid - not sure if this caused the battery to discharge
Sounds like the dealer did not give you fully charged battery. Usually the battery is not installed until the customer buys the unit and then a new battery is installed. The battery should have been fully charged. If not, and the battery is old (sitting outside on the trailer for months without charging), then yes one use of the power jack could easily deplete the battery. I'd take it back to the dealer and ask why the battery is dead.