I have a jlg t500j 24v i was using it in my yard to cut down tree limbs i went up to a limb cut it down amd when i turned around all power was off so i figured i accidentally bumped the shutoff button so i pulled it out and nothing did this a few times before i realized i had to climb down some how i managed to climb out off the lift and down the tree. Bottom line it jus died batteries have power checked the power at the key switch and both shutoff buttons and theres power going thru them just nothing works no turn on chirp and no foot placement lights i know cars but this is a puzzle to me