FYI push button start via relay, on my second Optima Red battery. My motor will only turn over with a full charge. If it is drained at all, when the start button is pressed, voltage drops to 10 and nothing happens. Doesnt even try to turn over. If it is fully charged or hooked up to charger it works. During a race I am only getting 12.5-13 volts, sometimes 13.5 on a good day (however, i am running fans and coolshirt). I am wondering the following:
- Is it the alternator or voltage regulator? If so, it shouldn’t have anything to do with not starting i wouldn’t think
- Is it the battery? It’s AGM so it wants a higher charge voltage that it’s not getting. Is there a 14.5-7 voltage regulator out there?
- Is it the starter? Works totally fine when it turns over. Doesn’t even try when it is not
- Is it the relay on the start button? If voltage is dropping to 10, would that be a reason that the relay many not send a start signal to starter? I hear the relay clicking when button is pressed.