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Does a Motorcycle Alarm Drain the Battery?

Suppose you’re going to a restaurant riding your bike. You reach there and park the bike in the public parking area. Then you go inside the restaurant for some time, and the tension regarding your bike starts in your mind.

What if someone tries to steal it? You worry and can’t stop thinking about anything but your bike. 

In times like this, having a motorcycle alarm is not only helpful but also a much necessary item. But does a motorcycle alarm drain the battery?

Yes, it does. It constantly takes power from the battery, draining it in the process. But there has to be another solution, right? A solution that will keep the battery-less drained.

We’ll talk about all that you need to know about motorcycle alarms and battery drain problems in this guide. You’re going to learn about some different issues and hopefully will be able to figure a way out depending on your specific case.

Why Does a Motorcycle Alarm Drain the Battery?

Well, things are not so simple with the batteries. One can’t basically get a single solution that fits all the battery drainage issues caused by alarms.

You need to know about the factors that play a major role in draining the battery and learn about some good alternatives to cope with the problem.

One of the common alarm types is the proximity sensor alarm. It has a simple working mechanism. The proximity sensor does one thing: it detects proximity. Or in other words, it checks for whether someone comes close to the bike when it’s parked. 

If someone comes too close to the bike or touches the bike, the sensor will immediately start buzzing. It does so because other people nearby can know an intruder is trying to come near the bike.

How close can the intruder be before the buzzer starts giving off alarms? That can be programmed easily. 

Basically, that’s how a proximity alarm works. Giving off alarm sounds should use a lot of electricity, right? But how can it discharge a battery? 

The main culprit that causes battery discharge isn’t the buzzing, it’s the constant detection the sensor does. It doesn’t draw a lot of battery power, though. 

If you keep your bike parked for a little while, then you won’t even notice the charge reduction. But if you keep it for a few days, like a week, then it will reduce a significant amount of charge; that’s a long time.

There’s another radio-controlled alarm system etch that allows you to set detection intervals by your choice.

You can manually set it or adjust a timetable regarding when the alarm detection should start. This type uses less energy because it’s only working when you tell it to. 

Both of these draw a small, insignificant amount of charge in a short time. But as more time goes by, drawing increases, and likewise, the battery loses more voltage.

If the discharge is too much, the bike might have to get jump-started in the next startup.

How to Stop Drainage as Much as Possible?

There are a few tricks you can use to lessen the battery discharge as much as you can. They’re not too complicated and can be done with an extra component or two. Let’s discuss them – 

Alarm Switch

You can add custom switches to your alarm system to turn it on or off whatever you feel like. 

Suppose you’re staying at your home now and have parked the bike in your garage. If you feel it’s safe out there, then there’s no need to keep the sensor always on. Because the place is safe and secure, and none can come near the bike.

You’ll be able to save a lot of charges this way because you’re not wasting by choosing the default discharge process of the alarm sensors. A simple trick, but it works great.

Battery Tender

What a battery tender does is it keeps the battery charged using an external power source. If you park your bike where there’s a power outlet nearby, you can connect the tender to the power outlet and use it to keep the battery voltage constant.

However, if there’s no outlet, then it has zero benefits; this is one optional solution.

Deep Cycling

Don’t ever completely discharge a battery. A completely empty battery, if kept for too long, can lose its power holding ability permanently.

This isn’t only a case with motorcycle batteries but also with all the other major battery types you’d notice with electronics.

In fact, try to recharge your battery once it’s close to 10/20% of battery level and charge it again to 80/90%.

Charging to the highest or discharging to the lowest both have similar risks. It’s never ideal to do this, and it will, with time, reduce the overall capacity of a battery.

When you notice your bike’s battery drained out, don’t wait for long. Use jump start cables of battery starters to restart it quickly. The quicker you take action, the better it is for battery health.

Lower Decibel

If you always park your bike somewhere close to you, then there’s not much need to use an alarm with super loud noises.

Choose a less loud one. Something with a lower decibel count can help you save some battery power.

An Alternative Idea

Motorcycle alarms aren’t for everyone. For sure, they’re one hassle to use. You always have to keep the battery charge checked. Moreover, you need to monitor the alarm constantly. And not everyone will sign up for this.

There are other protective measures you can take for your bike. For example brake disk locks, motorcycle hook chains, and other stuff.

If what you use for security is secure enough and won’t let a thief steal the bike easily, maybe you won’t have to go for an electric alarm. It’s up to you to decide what works the best for you.

Final Words

Does a motorcycle alarm drain the battery? Well, this question shouldn’t bug you much now because you know well about this fact.

If you can follow the alternative tips mentioned in this guide, hopefully, you won’t have to worry much about the battery going blank with an alarm’s power intake.

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