 Dead Battery
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Joined: Jul 2006
Posts: 112
Adjunct
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OP
Adjunct
Joined: Jul 2006
Posts: 112 |
Left my ignition on and now I barely get anything from the headlight.. Gotta be somewhere in an hour...
Can I jump the bike from my car using cables.. or will I end up frying something out?
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Re: Dead Battery
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Joined: May 2007
Posts: 6,432 Likes: 1
Worn Saddle
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Worn Saddle
Joined: May 2007
Posts: 6,432 Likes: 1 |
Yep, just leave the car off and get the jumper off PDQ.
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
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Re: Dead Battery
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Joined: Apr 2007
Posts: 3,059 Likes: 8
Loquacious
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Loquacious
Joined: Apr 2007
Posts: 3,059 Likes: 8 |
You can jump from a car. Both 12 volts.
12 Rocket Roadster
03 Bonneville America
69 BSA Firebird Scrambler
73 Yamaha TX 750
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Re: Dead Battery
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Joined: Jan 2005
Posts: 4,072 Likes: 80
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 4,072 Likes: 80 |
DO NOT jump a bike off with a car...ever.. way too many cranking amps. Sure you may get lucky this time and maybe next but it can.. and has (in my case) cause damage to your charging system.
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Re: Dead Battery
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Joined: Feb 2007
Posts: 23,186 Likes: 55
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,186 Likes: 55 |
Quote:
DO NOT jump a bike off with a car...ever.. way too many cranking amps. Sure you may get lucky this time and maybe next but it can.. and has (in my case) cause damage to your charging system.
Amen!
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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 Re: Dead Battery
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Joined: Jun 2006
Posts: 2,626
Loquacious
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Loquacious
Joined: Jun 2006
Posts: 2,626 |
Second gear, full choke, run like h*ll,dump the clutch/drop one cheek on the seat, crack the gas after you hear it catch. Good luck.
Steelheart- '03 Speedmaster Black/Yellow
The Hayabusa Killa
16" Shorties/140 mains/Airbox drilled
Procom CDI
"There is no cure for Celibacy. But we can treat the symptoms."
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Re: Dead Battery
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Joined: Jan 2005
Posts: 11,124 Likes: 13
Should be Riding
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Should be Riding
Joined: Jan 2005
Posts: 11,124 Likes: 13 |
Yeah what was said about CCA and such. However, in your case at least, you can get by with a 'pop the clutch' start. However, those with bad batteries cannot. You need a charged battery to run the sickle. the charging system will not keep it running. Your newly drained battery still has/had enough excited electrons to get er dun. A bad battery does not. Ask Bill from Ottawa. Eh? As Pete and I are heard huffing (exertional not recreational) away in the Lafayette parking lot.  Jumping with a car bat'tree calls to mind that scene from the rocky horror picture show, "It's Alive" IT'S ALIVE!!!!" as St. Elmo's (as in St. Erasmus) fire dances round the pointy bits of metal. A stench of ozone wafts up to ones nostrils. 
Blowing gravel off rural roads
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Re: Dead Battery
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Joined: Jan 2005
Posts: 2,968 Likes: 1
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 2,968 Likes: 1 |
This is when one of those cigarette lighter to cigarette lighter chargers works great. You plug them into the bike and the car. DON'T try starting the bike or the car. Just let the car charge your battery for 15 or 20 mins through the cigarette lighter. Then remove the charger and the bike should start. I have a cigarette lighter/aux power port adapter that I can plug into my battery tender pig tail. You can buy the whole setup at Walmart for under $5.00.
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Re: Dead Battery
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Joined: Sep 2006
Posts: 1,836 Likes: 5
Learned Hand
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Learned Hand
Joined: Sep 2006
Posts: 1,836 Likes: 5 |
Quote:
You need a charged battery to run the sickle. the charging system will not keep it running.
Idunnoboutdat, Moe. At the end of the NY rally, just after fully loading and preping for departure, I found I had to do the Run / pop jump start to get her going (It's a bugger trying to push and hop onto a fully laden scoot and find the seat - It took 2 attempts). I rode her all the way home with only one more 'shakey' moment (there was always enough power to 'click' and not always enouph to turn the starter. Maybe if FULLY dead, it won't sustain, but, I was able to go a few hundred miles counting only on the charging system.
2004 Triumph Speedmaster (J Lo) 2006 Yamaha Stratoliner (Adele)
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Re: Dead Battery
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Joined: Jan 2005
Posts: 8,639 Likes: 3
Old Hand
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Old Hand
Joined: Jan 2005
Posts: 8,639 Likes: 3 |
If you have some 10 or 12 gauge wire, use that to connect up to the car battery. Wait a little while to get some charge in the bike battery, disconnect and then start the bike. That wire can't pass as much current as a jumper cable, so it's safer.
Let's hope there's intelligent life somewhere in space 'cause it's buggar all down here. -- Monte Python
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Re: Dead Battery
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Joined: Jan 2005
Posts: 1,018
Learned Hand
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Learned Hand
Joined: Jan 2005
Posts: 1,018 |
Also, there's this. Charging systems on bike, as well as cars for that matter are not meant to be true battery chargers. They are better described as battery maintainers. Using your alternator to charge a completely dead battery over taxes it. Alternator or strators aint cheap for these bikes. Check the prices.
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Re: Dead Battery
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Joined: Feb 2007
Posts: 23,186 Likes: 55
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,186 Likes: 55 |
Plus in most cases a charging system will not bring a battery back to a full charge.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: Dead Battery
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Joined: Aug 2007
Posts: 10,715 Likes: 5
Should be Riding
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Should be Riding
Joined: Aug 2007
Posts: 10,715 Likes: 5 |
Quote:
DO NOT jump a bike off with a car...ever.. way too many cranking amps. Sure you may get lucky this time and maybe next but it can.. and has (in my case) cause damage to your charging system.
Does this apply to battery chargers with a jump start feature? Mine has 1.5, 10 and 50 amp settings. I charge with 1.5 amp, but if I need a jump, I switch to 50 and away I go. Possible damage here?
Always remember to be yourself. Unless you suck. Then pretend to be someone else.
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Re: Dead Battery
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Joined: Jan 2005
Posts: 5,172
Saddle Sore
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Saddle Sore
Joined: Jan 2005
Posts: 5,172 |
I am no wizard when it comes to things electrical, but did you ever try the 10 amp setting? The alternator puts out about 27 amps at higher rpms. 50 may be a bit of a jolt, even though that's much less than the CCA's of a basic car battery...
More flags
More fun!
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Re: Dead Battery
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Joined: Apr 2007
Posts: 3,059 Likes: 8
Loquacious
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Loquacious
Joined: Apr 2007
Posts: 3,059 Likes: 8 |
Quote:
DO NOT jump a bike off with a car...ever.. way too many cranking amps.
Fellows, Could you please explain the above statement? Maybe I'm missing something here! example... If I have a 1.5 volt light bulb and hook it up to a 1.5 volt D cell, it will light up. If I hook up 50 1.5 volt D cells in parallel and then hook them up to the same 1.5 volt light bulb, it will still light up with no problem. There is a lot more amperage available but it is still rated for 1.5 volts. What is the difference with a 12 volt motorcycle battery vs a 12 volt automotive battery.
If you could fit a car battery in your bike, it would function just like a bike battery. The only difference is that you would be able to crank your starter for a lot longer.
I realize the potential for arcing and damage to the charging system is a lot greater if you ground out a jumper lead because of the large amperage potential with the automotive battery but you can still jump start your bike in a pinch. Just make sure the car isn't running like Oldroadie stated.
One last statement, there is always the safety aspect of jump starting. Any battery can explode when jump started depending on how you jumpered the cables and the internal condition of the battery. I've seen at least a dozen batteries explode over the years. Some because of loose connections, some because of internal shorting. If you don't know what you are doing, don't do it.
I have included a couple of links on "Jump starting Motorcycles"
http://www.msgroup.org/tip.aspx?num=104
http://www.cyclemaintenance.com/elec/jump_starting.htm
This link states that you can boost from an Auto but make sure it is not running.
http://www.shadowriders.org/faq/jumpstarting.html
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Re: Dead Battery
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Joined: Jan 2006
Posts: 7,685 Likes: 20
Monkey Butt
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Monkey Butt
Joined: Jan 2006
Posts: 7,685 Likes: 20 |
Its the 12th now, I think he missed work.  Thats right Gregger. With the car off 12v is always 12v. The math does not change.
I try to aggravate one person a day. Today may be your day.
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Re: Dead Battery
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Joined: May 2007
Posts: 6,432 Likes: 1
Worn Saddle
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Worn Saddle
Joined: May 2007
Posts: 6,432 Likes: 1 |
I suspect the rest of the gang was going on experience learned from jumping a dead bike with a car and having the charging system overtax itself trying to charge a dead/defective battery and keep the rest of the bikes electrics alive simultaneously.
After 30 years of working with thousands of amperes everyday as part of my job I do understand very well that voltage not current is the damaging element in power applications. Non-defective electrical apparatus will only draw the current it requires to operate and no more.
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
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Re: Dead Battery
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Joined: Jul 2006
Posts: 112
Adjunct
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OP
Adjunct
Joined: Jul 2006
Posts: 112 |
I nede uplate.. but I found the perfect solution to my problem.
Bought a new battery.
(the old one wouldn't even take a charge from my local mechanic.)
Lesson learned.. but thanks all for the input. Lots of agreeing to disagree here?.
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Re: Dead Battery
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Joined: Jul 2006
Posts: 112
Adjunct
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OP
Adjunct
Joined: Jul 2006
Posts: 112 |
that 1st sentence was actually "I ended up late"
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Re: Dead Battery
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Joined: May 2007
Posts: 6,432 Likes: 1
Worn Saddle
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Worn Saddle
Joined: May 2007
Posts: 6,432 Likes: 1 |
It's always great to find an easy solution. I think we're all agreed that the bike's charging system is meant primarily for maintenance and not to charge a dead battery so here are two words of advice: Battery Tender.
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
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