Can a stereo cause a drain on the battery?
Any stereo will cause a SMALL drain on a battery even when the vehicle is off… that’s almost necessary in order to save your presets and settings… but this drain is pretty much negligable. If you’re having trouble I’d suspect it’s something other than your stereo unless you’ve done the tests to prove it’s the stereo..
Why does my car battery drain after I Turn Off the key?
2. Parasitic Drain Parasitic drain is due to components in your vehicle continuing to run after the key is turned off. Some parasitic drain is normal – your battery delivers enough energy to keep things, like your clock, radio presets, and security alarm operational at all times.
What to do when car stereo battery runs down?
The easiest way to do this is pull the stereo fuse and connect the ammeter probes directly to the fuse socket terminals. By the way how long does it take for the battery to run down?
Why is my ham radio draining my battery?
They also told me the vehicle should draw about 0.21 milli-amps when off but that mine was drawing 0.63 milli-amps. They disconnected the alarm and now it draws 0.43 milli-amps. They believe that it is the aftermarket ham radio that is causing the draw.
Why does my car stereo drain my battery?
It’s the aftermarket systems that produce the kind of sound people can hear three cars ahead of you in traffic that can be trouble. The larger and more powerful the system, the greater the potential for battery drain. A simple check is to disconnect your stereo system and see if that fixes your battery woes.
Why does my car stereo keep drawing current?
This is the solution…stop second guessing the obvious. I installed stereos and remote starts/alarms professionally for over 12yrs. This is a semi common failure in stereos…has to do with relays on the circuit board that get stuck…they are so tiny that sometimes they corrode closed and or just fail and cause current draw/don’t shut off.
How to know if this is a problem with a stereo?
My mechanic did a parasitic load test and found that my aftermarket stereo was responsible. He pulled the fuse and since then the car starts like a champ. So my question is, how can I know if this is going to be a problem with a stereo?
Why does my OnStar battery drain so much?
Community Answer In older vehicles running analog Onstar, the system will drain the battery because it is constantly looking for a signal. Onstar no longer offers an analog signal, only digital.