NO, IF the battery is truly dead, then the hazard lights will not work.
However, if there is some power left in the battery, even though the voltage may be extremely low, then the hazard lights maycontinue to work.
The hazard lights get their power from the battery so if the battery is dead they will not work.
If none of your lights work it sounds like a bad battery cable connection or a dead battery
No you do not need a battery, but the lights and horn will not work unless you have a battery installed, dead or not.
A dead battery
Do any of your lights work ? If not it sounds like a battery cable connection or a dead battery
Sounds like a dead car battery. Do any lights or electrical accessories work?
check the battery
If none of your lights work , it sounds like a bad battery cable connection or a dead battery
94 mercury grand marque dashboard, hazard, and tail lights do not work?
bulb gone? fuse burned? battery dead?
try replacing all sets of fuses for the hazard and the tail lights.
it dont have lights