Battery and Alarm problem
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Stage IV
Joined: May 2020
Posts: 4
Likes: 0
From: Riyadh
Battery and Alarm problem
hi everyone. I am new to the forum and I am new to motorcycles and riding. I own a softail blackline 2011.
Issue: everytime I try to charge the battery, the alarm goes off. I thought it might be the batteries on the FOB key so I changed them, but that didnt work. Alarm still goes off. The battery charges for a while then the alarm goes off until the battery dies again. I tried disconnected and reconnecting the battery but that didnt work either. Any idea what is causing this and how to fix it? Thanks
Edit: the battery recharges for 5 minutes and I think as soon as it has enough charge, the alarm goes off and the charge circuit cuts off.
Issue: everytime I try to charge the battery, the alarm goes off. I thought it might be the batteries on the FOB key so I changed them, but that didnt work. Alarm still goes off. The battery charges for a while then the alarm goes off until the battery dies again. I tried disconnected and reconnecting the battery but that didnt work either. Any idea what is causing this and how to fix it? Thanks
Edit: the battery recharges for 5 minutes and I think as soon as it has enough charge, the alarm goes off and the charge circuit cuts off.
Last edited by Ahmed Maklad; May 24, 2020 at 01:59 AM.
Cruiser
Joined: Sep 2017
Posts: 125
Likes: 9
From: USA
Not sure if our bikes are the same, but on my 2007 Deluxe, the Smart Siren II has a 9v rechargable battery inside of it, which will power the siren/pager transmission/flashing lights in the event of a thief cutting the bike's main power. When that 9v battery starts getting weak and is unable to hold a proper charge, I believe the system will start acting goofy and going off by itself at random times, usually when everyone is asleep. My suggestion would be to access your Smart Siren module and change the battery inside.
Edit: Just read your post again, and maybe you're having the opposite problem of what I originally suggested. It sounds like your main battery is dying a lot - that shouldn't be happening. Perhaps the problem isn't with the 9v battery inside of your Smart Siren, perhaps that one is working fine, and the problem is your main battery keeps cutting out, making the Smart Siren think someone has cut the bike's main power. Are you sure your main battery is good? Had it load tested, etc.? Motorcycle batteries generally don't last as long as car batteries and will need to be changed out more frequently than "cagers" are accustomed to, in my experience.
Edit: Just read your post again, and maybe you're having the opposite problem of what I originally suggested. It sounds like your main battery is dying a lot - that shouldn't be happening. Perhaps the problem isn't with the 9v battery inside of your Smart Siren, perhaps that one is working fine, and the problem is your main battery keeps cutting out, making the Smart Siren think someone has cut the bike's main power. Are you sure your main battery is good? Had it load tested, etc.? Motorcycle batteries generally don't last as long as car batteries and will need to be changed out more frequently than "cagers" are accustomed to, in my experience.
Last edited by ChiFLSTN; May 24, 2020 at 12:44 AM.
Thread Starter
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Stage IV
Joined: May 2020
Posts: 4
Likes: 0
From: Riyadh
Not sure if our bikes are the same, but on my 2007 Deluxe, the Smart Siren II has a 9v rechargable battery inside of it, which will power the siren/pager transmission/flashing lights in the event of a thief cutting the bike's main power. When that 9v battery starts getting weak and is unable to hold a proper charge, I believe the system will start acting goofy and going off by itself at random times, usually when everyone is asleep. My suggestion would be to access your Smart Siren module and change the battery inside.
Edit: Just read your post again, and maybe you're having the opposite problem of what I originally suggested. It sounds like your main battery is dying a lot - that shouldn't be happening. Perhaps the problem isn't with the 9v battery inside of your Smart Siren, perhaps that one is working fine, and the problem is your main battery keeps cutting out, making the Smart Siren think someone has cut the bike's main power. Are you sure your main battery is good? Had it load tested, etc.? Motorcycle batteries generally don't last as long as car batteries and will need to be changed out more frequently than "cagers" are accustomed to, in my experience.
Edit: Just read your post again, and maybe you're having the opposite problem of what I originally suggested. It sounds like your main battery is dying a lot - that shouldn't be happening. Perhaps the problem isn't with the 9v battery inside of your Smart Siren, perhaps that one is working fine, and the problem is your main battery keeps cutting out, making the Smart Siren think someone has cut the bike's main power. Are you sure your main battery is good? Had it load tested, etc.? Motorcycle batteries generally don't last as long as car batteries and will need to be changed out more frequently than "cagers" are accustomed to, in my experience.
And you are right, I guess nothing to do with the siren because it only goes off when I try to recharge the battery.
I could take the battery to the dealership but they are so bad I just want to stay away
Last edited by Ahmed Maklad; May 24, 2020 at 02:00 AM.
Cruiser
Joined: Sep 2017
Posts: 125
Likes: 9
From: USA
8 months isn't old, but you may have gotten a bad battery to start with or done damage to it with all of these issues you're having. How are you trying to charge the battery, via the Battery Tender? You may want to wait for advice from the more knowledgeable folks here, but if it was me in your situation I would follow the procedure for pulling the battery (have the fob at the bike, turn on the ignition, pull the main fuse, remove the battery). Then charge the battery off of the bike and see if it's able to hold a charge. If not, bad battery. If so, something on the bike is causing the drain and you'll want a good mechanic, preferably one with expertise in electrical systems to investigate.
P.S. unlike with your car/daily driver, it would be a good idea to always leave your bike on the Battery Tender once you've gotten this issue resolved. Letting the battery die and then recharging it from dead over and over again is bad for the battery and will greatly shorten its lifespan. I was taught by riders who know much more than me that if the bike isn't running, it should be on the Tender.
P.S. unlike with your car/daily driver, it would be a good idea to always leave your bike on the Battery Tender once you've gotten this issue resolved. Letting the battery die and then recharging it from dead over and over again is bad for the battery and will greatly shorten its lifespan. I was taught by riders who know much more than me that if the bike isn't running, it should be on the Tender.
Last edited by ChiFLSTN; May 24, 2020 at 02:47 AM.
Cruiser
Joined: Sep 2017
Posts: 125
Likes: 9
From: USA
Yes, that's the idea, that if you follow the steps I outlined above, the alarm/siren "shouldn't" sound and will be completely deactivated before you get to the unhooking the battery step. You might be able to skip the fuse step, and just do the fob/ignition/remove battery part, but I believe the process is laid out in those four steps (including the fuse step) to prevent you from accidentally damaging an electrical component on the bike while trying to unhook/remove the battery. I'm sure many here have monkeyed around with their bikes without pulling the fuse, but I would follow the prescribed procedure.
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