Can Car Alarm Drain Battery

Remember that the drain doesnt have to take your battery to zero overnight just low enough for it to not start.
Can car alarm drain battery. That seems like a tiny amount but a single incandescent dome light pulls enough power to drain a battery in one day. Disconnect the battery put the key in the ignition and turn it to the ON position. Car alarms installed by the automaker dont usually cause trouble but aftermarket car alarms are a different story.
Though I have heard of alarm currents being above 40-50mA which IMO is excessive unless the vehicle is used daily. An expert who has answered 20 questions. One cant basically get a single solution that fits all the battery drainage issues caused by alarms.
What drains a car battery while it is off. An alarm is a load and hence drains the battery just as any batterys self-leakage does but that does not necessarily mean a high or unacceptable drain. This is when a frayed wire causes an intermittent connection with another metal part.
A car alarm can drain the battery over time because it requires power from the battery to power its electronics whether in standby mode or triggered. Car alarms installed by the automaker dont usually cause trouble but aftermarket car alarms are a different story. Most common reasons why your battery drains is because you left your headlights overnight clock radio and security alarm that runs after your car is turned off bad charging defective alternator diode and old battery.
If the alarm was factory installe. Does this sound like the alarm might be draining the battery or is it likely something else. After disconnecting the battery a few times and alarm stopped going off and the car started.
You cant post conmments that contain an email address. Installed correctly they draw a small amount of power and wont drain your battery. There is a button to the left of the steering wheel that did blink when the battery was dead.















