battery question
Thread Starter
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1st Gear
Joined: Mar 2019
Posts: 5
Likes: 1
From: Switzerland
battery question
Hi guys,
I need your advice. My battery is completely uncharged and I'm planning on charging it passively by connecting it to my car's 12v battery while it's turned off. How likely am I to damage the electrical system by and do you think it'll work?
Thanks in advance,
Alex
I need your advice. My battery is completely uncharged and I'm planning on charging it passively by connecting it to my car's 12v battery while it's turned off. How likely am I to damage the electrical system by and do you think it'll work?
Thanks in advance,
Alex
Tourer
Joined: Nov 2017
Posts: 409
Likes: 980
From: Fernley, Nevada
By "completely uncharged", do you mean it is totally discharged? While charging off your car battery may work, you need to keep in mind that it will draw power from your car battery. ( not a great idea ) Personally, I would just go and get a new battery, or at least try charging it using a battery charger.
Club Member
Joined: Apr 2013
Posts: 7,681
Likes: 8,413
From: Utah
I wouldn't do that. Take it out and charge it then have it load tested to see if it will hold a charge.
https://www.revzilla.com/common-trea...rcycle-battery
https://www.revzilla.com/common-trea...rcycle-battery
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,064
Likes: 1,003
to answer the ?, yes it will work.
the issue here is that depending upon the resistance of the battery being charged, you have zero control over charge rate. the two batteries will equalize voltage wise. on the amperage side, i would not do this long term because of the risks involved like a run-a-way battery. the old lead acid batteries will just boil the electrolyte but the newer battery could swell and come apart.
the issue here is that depending upon the resistance of the battery being charged, you have zero control over charge rate. the two batteries will equalize voltage wise. on the amperage side, i would not do this long term because of the risks involved like a run-a-way battery. the old lead acid batteries will just boil the electrolyte but the newer battery could swell and come apart.
Hi guys,
I need your advice. My battery is completely uncharged and I'm planning on charging it passively by connecting it to my car's 12v battery while it's turned off. How likely am I to damage the electrical system by and do you think it'll work?
Thanks in advance,
Alex
I need your advice. My battery is completely uncharged and I'm planning on charging it passively by connecting it to my car's 12v battery while it's turned off. How likely am I to damage the electrical system by and do you think it'll work?
Thanks in advance,
Alex
Once charged, it needs to be properly load tested.
Thread Starter
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1st Gear
Joined: Mar 2019
Posts: 5
Likes: 1
From: Switzerland
Thanks for the answers so far, I won't be doing it then. Here are a few details I hope will help someone come up with a better idea than mine.
My motorcycle is stored in a communal garage that doesn't have a single power outlet I could use with my charger. I planned on simply removing the battery and taking it home to charge however it no longer powers the electrical system enough for the alarm to disarm with the FOB. I must have messed up changing the alarm's pin code because when I try to do it manually it sets off the alarm. The factory pin "11111" doesn't work either.
So essentially I'm left with an alarm I can't disarm and if I remove the battery I'll set it off. I could call the garage but I was hoping to avoid that expense. Another solution might be to just let the alarm go off until it loses power but I don't know how long it'll last and I'd rather avoid making life miserable for everyone in the building.
Does anyone have another idea?
My motorcycle is stored in a communal garage that doesn't have a single power outlet I could use with my charger. I planned on simply removing the battery and taking it home to charge however it no longer powers the electrical system enough for the alarm to disarm with the FOB. I must have messed up changing the alarm's pin code because when I try to do it manually it sets off the alarm. The factory pin "11111" doesn't work either.
So essentially I'm left with an alarm I can't disarm and if I remove the battery I'll set it off. I could call the garage but I was hoping to avoid that expense. Another solution might be to just let the alarm go off until it loses power but I don't know how long it'll last and I'd rather avoid making life miserable for everyone in the building.
Does anyone have another idea?
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,064
Likes: 1,003
not on the alarm system, i can only operate the smith & wesson types.
what i would look into is a solar charger and see if the management would allow you to install and park your ride so it could be used. they work well on marine applications, make sure you get a regulator so as not to over charge.
what i would look into is a solar charger and see if the management would allow you to install and park your ride so it could be used. they work well on marine applications, make sure you get a regulator so as not to over charge.
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Thanks for the answers so far, I won't be doing it then. Here are a few details I hope will help someone come up with a better idea than mine.
My motorcycle is stored in a communal garage that doesn't have a single power outlet I could use with my charger. I planned on simply removing the battery and taking it home to charge however it no longer powers the electrical system enough for the alarm to disarm with the FOB. I must have messed up changing the alarm's pin code because when I try to do it manually it sets off the alarm. The factory pin "11111" doesn't work either.
So essentially I'm left with an alarm I can't disarm and if I remove the battery I'll set it off. I could call the garage but I was hoping to avoid that expense. Another solution might be to just let the alarm go off until it loses power but I don't know how long it'll last and I'd rather avoid making life miserable for everyone in the building.
Does anyone have another idea?
My motorcycle is stored in a communal garage that doesn't have a single power outlet I could use with my charger. I planned on simply removing the battery and taking it home to charge however it no longer powers the electrical system enough for the alarm to disarm with the FOB. I must have messed up changing the alarm's pin code because when I try to do it manually it sets off the alarm. The factory pin "11111" doesn't work either.
So essentially I'm left with an alarm I can't disarm and if I remove the battery I'll set it off. I could call the garage but I was hoping to avoid that expense. Another solution might be to just let the alarm go off until it loses power but I don't know how long it'll last and I'd rather avoid making life miserable for everyone in the building.
Does anyone have another idea?
Or just hook a charged battery to it thats not in a vehicle just to disable alarm.
Your original post indicated you intended to do something like this to keep the battery charged which is not a good plan. Knowing you only need to disable the alarm, this is what i would do in your situation.
Last edited by Ed Ramberger; Mar 23, 2019 at 08:09 AM.
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Joined: Dec 2012
Posts: 2,557
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From: Texas
You will not harm your bike's charging system jumping from a car battery as long as you do not crank the car however I would not use a car battery to recharge a motorcycle battery. If your battery is over 2 years old and is completely discharged, it is more than likely NFG and should be replaced. 12 hours on a charger and then a load test should let you know if it is still serviceable.
You will not harm your bike's charging system jumping from a car battery as long as you do not crank the car however I would not use a car battery to recharge a motorcycle battery. If your battery is over 2 years old and is completely discharged, it is more than likely NFG and should be replaced. 12 hours on a charger and then a load test should let you know if it is still serviceable.