so dead as in lights won't even faintly glow?
are you sure the use/store switch didn't get turned to store by mistake?
can you start the chassis?
when you engage the emergency start, do you hear a clunk as you press the button...probably coming from the chassis engine compartment?
do you have a multimeter or some way to measure voltage at the batteries? It could be dead batteries....or it could be something keeping the juice from getting out of the batteries (fuse or relay)
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