No. A bad battery is not causing your dash lights to go on and off. A different part is bad. Without equipment I have no idea what it is.
If you have no battery then you have no power.
On a 1999 GEO Tracker, a bad fuse can cause the headlights and dash lights to blink. A bad voltage regulator or alternator can also cause lights to blink and flicker.
Can cause surging and/or flickering
Bad dash ground.
Seized engine? Dead battery? Loose or corroded battery cables? Bad starter? Bad starter solenoid? Bad neutral safety switch? Bad Ignition switch?
A bad relay switch could be the culprit if dash lights remain on after engine starts in a Toyota. Cold weather can also cause these lights to stay on after the engine starts.
Either battery or alternator going bad, Advance Auto, or Auto Zone can check this for you! This happened to my truck, but my memory is not to good! More likely the alternator. yeah this happened to me on the freeway, i figured the computer needed to be reset but when the brake and battery lights go on, the alternator is going bad and you might have a half day of driving before it drains your battery
It is a bad negative battery cable or weak ground conection. I would just replace the negative battery cable. This should fix the problem.
Bad Battery. Bad Alternator. Lights left on by mistake. Something left running. Exc.
Blinking lights on dash and exterior lights may indicate a bad ground wire or a faulty headlight switch. Both would cause those problems.
seized engine? bad starter solenoid? bad starter? loose or corroded battery cable? bad neutral switch?
Bad dash light, or dimmer fuse. Or a bad dimmer switch itself