Hello, I recently installed a new stereo with subwoofer that's max 600W, when doing so I had the radio on for 30 min with low volume while I was putting interior panels back in place. I ended up discharging the battery enough for the starter motor not to turn. Funny enough it only took 2min with charger and the car would start.
Since then I have been avoiding having radio on with the engine off, not even for few minutes.
I can see it's possible to buy voltage meters for the cigarette lighter port also I can monitor the battery on a phone app, I have an ObdII reader.
Can that be used to make sure I have enough juice to start the car? What is the threshold for when the starter motor is disabled?
While I'm here... has anyone tried to put in a secondary battery in the engine bay? It looks like there is space on the other side of the engine.
Since then I have been avoiding having radio on with the engine off, not even for few minutes.
I can see it's possible to buy voltage meters for the cigarette lighter port also I can monitor the battery on a phone app, I have an ObdII reader.
Can that be used to make sure I have enough juice to start the car? What is the threshold for when the starter motor is disabled?
While I'm here... has anyone tried to put in a secondary battery in the engine bay? It looks like there is space on the other side of the engine.