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Question:

Do 2-way car alarms drain the battery?

I‘m getting a new car alarm/remote starter, and I‘m trying to decide whether to get 1-way or 2-way system. I had a 2-way system before and I have a feeling that it put a lot of strain on my car battery which had to be replaced after just a year and a half of use. Has anyone had a similar experience?

Answer:

They put no more strain on the battery than a normal car alarm, which is minimal. I've found that the electrical draw has more to do with the car than it does with the alarm. Some electrical systems are extra sensitive, and the alarm can keep certain modules awake that normally go to sleep. This is apparent in European cars especially, and a lot of Fords. I had a Nissan Sentra back in the day with a heavy duty 2-way alarm and lots of sensors. Because the electrical system is so simple, I never had a draw that put strain on the battery. I have a European car now and everything is a fockin problem. The electrical system commits suicide if you connect anything to it.
If you buy a good car battery to begin with then no matter what you do it will not affect the car alarm or the starter. Many people buy the cheapest battery in town and wonder why they do not last. Having spent 24 years in a power wheelchair I now know far more about batteries than I ever want to know about batteries. Interstate batteries are one of the best. NAPA auto parts have good batteries , I have a ten year nascar battery in my van now that I really like so far especially in the winter. Sears die hard has an awesome battery, I just dont like thier auto shop trying to talk me into unnecessary repairs, (which sears has been succesfully sued for in several states already) so I seldom go to sears.

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