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do highbeams kill the battery even if the bike is running?

7656 Views 85 Replies 26 Participants Last post by  s295647
Does riding with the highbeams on kill the battery? I always ride in the daytime with my highbeams on and after a long ride its like my battery is at 50 percent when I go to start the bike up. Or is my battery going bad?
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Toobs said:
2003- Yes
2004- Not sure. Maybe Yes (if its same as 2003)
2005- Nope
2006- Nope
I think this pretty much sums it up. I have an 03. Back in 2003 there were threads about this issue all the time.
G
the 03-04 had rectifier bridge issues.
FACTION95Si said:
I think this pretty much sums it up. I have an 03. Back in 2003 there were threads about this issue all the time.
I think this problem has been totally misunderstood and falsely blamed on the high beams. As Knight points out, it's the R/R being too close to the headers that's causing the problem. The high beams are just a symptom of the cause.
Let me just point out for you, there are 22 (23 including this) post in this thread. All of them are opinion with the exception of one which is fact.
hessogood said:
Let me just point out for you, there are 22 (23 including this) post in this thread. All of them are opinion with the exception of one which is fact.
Can you please explain this with details?
shamster said:
Can you please explain this with details?
I'm intentionally not elaborating so that I don't have to deal with being flamed and challenged. Use the search function there are plenty of threads for this. Anyone going against the masses of " i use my high beams " is put out.
hessogood said:
I'm intentionally not elaborating so that I don't have to deal with being flamed and challenged. Use the search function there are plenty of threads for this. Anyone going against the masses of " i use my high beams " is put out.
With all due respect, you should elaborate if you make concrete statements that you say are fact, over opinion.
Plus, if you search for the highbeams topic, you'll still find a variety of "opinions". Would take too long to find out which one is really "fact".

I recall you were the one criticizing the stability of front stands that lift the bike up from the forks instead of the triple tree stem. Just like in this case, you made it sound like irrefutable fact, when in reality, it's definitley not a fact. Plenty of people, myself included, have good front fork stands that are VERY stable. No offense, but I see a pattern here with you. That is, drop a statement you say is the absolute fact, with no evidence to back it up.
High beams draw more power, I made the assumption that it would be easy enough to see that is a fact. I'm not going to spend hours typing a post on power systems, batteries, and linear circuits so that the people that don't have a dead battery can argue. Do constant high beams effect the battery? Yes.
Now I can be flooded with "no cause I use high beams and my battery works".
Well, I'm sure everyone can agree that they use more power. To the point of killing your battery prematurely is another point.
Plus, if you're so sure that what you say is absolutely correct, you should have nothing to fear anyway. But the fact is that people get away with using highbeams for prolonged periods of time with no ill effects. That alone makes any "fact" not so absolute.
shamster said:
Well, I'm sure everyone can agree that they use more power. To the point of killing your battery prematurely is another point.
Plus, if you're so sure that what you say is absolutely correct, you should have nothing to fear anyway. But the fact is that people get away with using highbeams for prolonged periods of time with no ill effects. That alone makes any "fact" not so absolute.

Your post is exactly why I tired to avoid eleaborating at all. The "fact" is not so absolute? So now you're challenging the laws of physics? The law of conservation of energy no longer exist because you don't acknowledge it.
BTW, read my prior post again...I edited to add another comment on the bottom.

Yes, again, we all know that more power is drawn with the use of highbeams. But how do you explain that people use them with no real ill effects? Could it be that even though more energy is used, it's not enough to really kill the battery...especially if you are actually running the bike enough to keep it charged?
Also, sorry to say, but you dropping a statement and not wanting to elaborate on it when asked to do so just makes you sound silly in the end. I think we can all accept that if someone says something to be a fact, at the very least, they should accountable for stating why it's a fact.
G
How much amprge does the generator put out?
How much does the bike draw?

the subtraction of those two will tell you irrefutably if they do or do not overdraw the power generation system.
I had that same problem....it waz just a bad bat.
Knightslugger said:
How much amprge does the generator put out?
How much does the bike draw?

the subtraction of those two will tell you irrefutably if they do or do not overdraw the power generation system.
The charging and consumed voltage is dependent on many factors. The temperature of the rectifier, the speed of the stator, what is being drawn off the battery..etc. Let the bike run until it gets hot enough for the fan to turn on and tell me if you see your high beams dim. What does that tell you about the draw on the battery? Do you know the chemistry in how a battery works and why a battery will stop working? I've been through it before with many topics on this site, just because the majority says so doesn't make it true. Does it matter that I've been on two wheels since I was 9 or I have a degree in electrical engineering from one of the top schools in the country? Of course not, because you haven't had a problem yet.

And if you want to go back to your fork support front stand, let's see a picture of you hanging all the way off your bike while it's supported on it's stands, or how about you show me how you remove your fork legs with it?
Now you're almost getting somewhere. Was that so hard? All that was asked of you was that you back up your statements with some evidence of why you're right and everyone is wrong. Nobody gives a crap if you went through this before with others. We're talking about our current thread, so if you want to have your input taken seriously, you'll have to reiterate everything again. If you're so afraid of having to repeat your arguments, or God forbid, you get flamed, perhaps it's best not to speak on the subject to begin with.
Still though, you being on a bike since you were 9 doesn't mean you know all the inner workings of a bike. As for your electrical engineering degree, nobody said you were wrong...but it's possible that there is more to it than an absolute yes or no.

Also, with the front stands, obviously you can't remove the front forks with those type of stands. Does that make it suck? Not everyone has a need to remove the forks, in which case, the fork stands will work just fine. As for stability, I have hung at least halfway off the bike sitting on it (I know this cause I have practiced shifting body positions on the stands before). I'm sure if I put all my weight hanging off one side pulling down, it could fall over. But I wouldn't do that with any stand. In any case, are stands built for you to hang off all your weight on one side? Some front fork stands are plenty stable if you are just doing regular maintenance work, like removing the front wheel. To say they are all garbage is pretty inaccurate, and to say so with no evidence to back it up, again, just sounds silly.
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I've given evidence. The hanging off is a demonstration on stability, even the best quality leg stand is less stable the the worst pin type. The stability and versatility of pin stand are the reasons that it's superior to the leg stand. If you want to change your front wheel without removing the calipers you need to remove the fender and spin the fork tubes. You can't do that with a leg stand. You can't remove the fork legs, you can't adjust the ride height of the forks. So becasue you bought a leg stand and not a pin stand, well it must be a great stand huh? I bet because you ride a honda it's the best bike made too?
hessogood said:
I've given evidence. The hanging off is a demonstration on stability, even the best quality leg stand is less stable the the worst pin type. The stability and versatility of pin stand are the reasons that it's superior to the leg stand. If you want to change your front wheel without removing the calipers you need to remove the fender and spin the fork tubes. You can't do that with a leg stand. You can't remove the fork legs, you can't adjust the ride height of the forks. So becasue you bought a leg stand and not a pin stand, well it must be a great stand huh? I bet because you ride a honda it's the best bike made too?
Nobody said a leg stand is better than stem stand. And we all know if you need to do work with your forks, you need a stem stand. Guess what? A stem stand often costs more though. A good fork stand is sufficient enough for those who just do very basic maintenance. And sorry, but I can assure you my bike is not going anywhere off the stands in my garage. I would seriously have to exert a good amount of intentional force to knock the bike over while it's on the stands in my garage.

And you also do not know how to draw conclusions correctly. Me saying that a fork stand is good enough for some doesn't mean they are great because I have one. But just cause it doesn't allow you to do everything you mentioned doesn't mean it sucks and is garbage. A Toyota Tacoma does everything my Matrix does, plus a lot more. More towing power, more cargo space in the back, stronger, etc. Does that now mean my Matrix sucks as a car, especially for its intended purpose? It should suck based on your logic.
G
hessogood said:
The charging and consumed voltage is dependent on many factors. The temperature of the rectifier, the speed of the stator, what is being drawn off the battery..etc. Let the bike run until it gets hot enough for the fan to turn on and tell me if you see your high beams dim. What does that tell you about the draw on the battery?
That doesn't tell me anything other than it takes quite a bit of amparge to get the fan to turn, but once it's turning stready, load is reduced.

look, i'm asking you, how much amperage does the generator produce at it's test RPM? once we determine that, we muct then depermine how much power the bike requires to run at that test RPM.

if we cannot produce this information, then what more do we have than common knowledge? produce some facts or step off your soap box. so far all i've heard is "I'm an electrical enginier", "I've been on two wheels since i was 9", and "Becasue i said so". nothing substantal.
Knightslugger said:
if we cannot produce this information, then what more do we have than common knowledge? produce some facts or step off your soap box. so far all i've heard is "I'm an electrical enginier", "I've been on two wheels since i was 9", and "Becasue i said so". nothing substantal.
Well said. I certainly do not have an electrical engineering degree, and I'll be the first to admit my knowledge with electrical systems is pretty sub-par. I certainly am not going to accuse someone of being wrong when I'm not that knowledgable on the topic myself, but it seems like it's too difficult for some to back up their supposed knowledge.
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