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Old 08-28-05, 05:51 AM
  #826  
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Originally Posted by jeff-o
The dual 3W luxeons do indeed light up the road, but are still drowned out by the street lights
Such statements puzzle me. Of course they are going to be drowned by street lights, but there you don't need them, see?
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Old 08-28-05, 06:58 AM
  #827  
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Originally Posted by jur
Such statements puzzle me. Of course they are going to be drowned by street lights, but there you don't need them, see?
Well, I find that street lights are only barely enough to drive/ride by. Sure you can see peds and cars and large obstacles in the road, but it's harder to see potholes and cracks. Potholes aren't usually dangerous for a car, but they could mean disaster on a bike.
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Old 08-31-05, 03:24 AM
  #828  
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Will this is 12V, 4500 ma, work on my 12V Cygolite HID. I'm thinking about getting a backup battery for the one that came with it. Thanks.
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Old 08-31-05, 01:23 PM
  #829  
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Originally Posted by Daily Commute
Will this is 12V, 4500 ma, work on my 12V Cygolite HID. I'm thinking about getting a backup battery for the one that came with it. Thanks.
It looks like it'll do the trick and only 1.5 lbs!
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Old 08-31-05, 08:57 PM
  #830  
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Thanks.
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Old 08-31-05, 11:10 PM
  #831  
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Originally Posted by Daily Commute
Will this is 12V, 4500 ma, work on my 12V Cygolite HID. I'm thinking about getting a backup battery for the one that came with it. Thanks.
I got the 19V one for my laptop. Give it a good workout in the first month to test it, because I had to get my first one replaced because it blew a bad cell in the pack. Also, be careful not to let it overheat while charging - it gets pretty hot charging off that cheapie charger. I'm thinking of rigging up a heatsink and fan for charging it.
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Old 09-01-05, 11:47 PM
  #832  
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In regard to the Rural Lighting. Has anyone tried using a standard floodlight from an autoparts store with a wetcell battery for a lawntractor or small motorcycle? There are some advantages with power and illumination - the main disadvantage is the weight and the possible acid spill.. The life for a wetcell should be considerable and can be recharged repeatedly.. Dave
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Old 09-02-05, 10:50 AM
  #833  
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Originally Posted by dpskiff
In regard to the Rural Lighting. Has anyone tried using a standard floodlight from an autoparts store with a wetcell battery for a lawntractor or small motorcycle? There are some advantages with power and illumination - the main disadvantage is the weight and the possible acid spill.. The life for a wetcell should be considerable and can be recharged repeatedly.. Dave
Thats more or less what I am doing, cept the battery is a spillproof/sealed type.
There seems to be no econimic reason not to use the SLA type battery.
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Old 09-02-05, 10:58 AM
  #834  
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Originally Posted by dpskiff
In regard to the Rural Lighting. Has anyone tried using a standard floodlight from an autoparts store with a wetcell battery for a lawntractor or small motorcycle? There are some advantages with power and illumination - the main disadvantage is the weight and the possible acid spill.. The life for a wetcell should be considerable and can be recharged repeatedly.. Dave
See my post #771 in this thread, that's pretty much what I have, just a sealed cell instead of a wet cell.
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Old 09-02-05, 12:57 PM
  #835  
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Anybody ever adapt the battery from a 12V cordless tool to use for lighting? My Makita came with a smart charger, and I've vowed to try it if I ever come across a broken Makita with a usable battery connector.

Just wondering if anyone's rigged their own, since I'm not an EE, nor do I play one on TV.
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Old 09-02-05, 02:11 PM
  #836  
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I looked into using a 12V Black and Decker battery but there didn't seem to be enough amperage on those. I suppose a 12V could run a couple of LED 12V trailer markers though.
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Old 09-06-05, 04:05 AM
  #837  
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Hooray, I've brought up an old thread.

Would it be a good idea to make a headlight from leds? I came across 10 white leds, 20000mcd each, and I should recieve them from mail tonite. I currently have Cateye opticube headlight, with one led. This leaves a lot to be desired. If anyone has any information about building a led headlight, I'd appreciate your advice.
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Old 09-06-05, 11:14 AM
  #838  
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Originally Posted by MelesMeles
Hooray, I've brought up an old thread.

Would it be a good idea to make a headlight from leds? I came across 10 white leds, 20000mcd each, and I should recieve them from mail tonite. I currently have Cateye opticube headlight, with one led. This leaves a lot to be desired. If anyone has any information about building a led headlight, I'd appreciate your advice.
You should have bought a single Luxeon 3W or 5W LED. The 20cd LED will probably be brighter than the one in the Cateye right now, but it probably won't be suitable for illuminating the path in front of you.

Now, if you rigged up all 10 of those LEDs, well, you'd still only be very visible to oncoming traffic.
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Old 09-06-05, 01:41 PM
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Thanks jeff-o, I presumed that. I haven't had a chance to order a Luxeon led yet, but maybe that time will come. I tried 20k led, and it's good enough in my opinion. I'll try and see, how it works out. Few busy evenings soldering ain't gonna hurt either.
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Old 09-07-05, 11:49 AM
  #840  
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Here's my contribution:

I replaced my server's UPS batteries every year. This year I saved the batteries for use on the bike. They are 9ah 12V. (I think they are 9ah) I am using one of them with a 55W halogen driving light and a tail/stop signal light wired to the brighter stop lamp. The battery and automatic charger are located in the "cooler" on the back rack. I'm getting around 30 minutes run time before I get a hint of dimming. I'm going to make some changes to get longer run time. My commute is only 6 miles one way so the 30 minute run time works fine for that, but if I have to run errands after work, then I may be pushing against the run time before I can make it home.


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Old 09-08-05, 08:45 PM
  #841  
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Originally Posted by Zin
Here's my contribution:

I replaced my server's UPS batteries every year. This year I saved the batteries for use on the bike. They are 9ah 12V. (I think they are 9ah) I am using one of them with a 55W halogen driving light and a tail/stop signal light wired to the brighter stop lamp. The battery and automatic charger are located in the "cooler" on the back rack. I'm getting around 30 minutes run time before I get a hint of dimming. I'm going to make some changes to get longer run time. My commute is only 6 miles one way so the 30 minute run time works fine for that, but if I have to run errands after work, then I may be pushing against the run time before I can make it home.
Good job Zin. That's a pretty heavy load for the battery and may reduce its longevity. Also be careful not to overdischarge the battery since this will permanently damage it. Here are some (no load) voltages for a 12V lead-acid battery and the approximate corresponding remaining capacity:

12.65V = 100%
12.45 = 75%
12.24 = 50%
12.06 = 25
11.89 = 0%

A 20W headlight would reduce the current draw and would still be very bright. You didn't indicate whether your tail light is tungsten or LED, but either way you could have the tail light on all the time, and connect the stop light filament to a switch on your brake. I did that and the drivers keep their distance.
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Old 09-08-05, 09:08 PM
  #842  
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Hi Multibiker,
Thanks for the reply and info. The tail light is tungsten. I re-wired the tail light today and now run the tail light constant. On the brake light I wired it to a signal stat and have it flashing. Run time test gave me around 45 minutes. The head and tail lights were still bright. However, the signal stat stopped functioning at this point. I'm going to run another run-time test making note of the voltage at which the signal stat fails to switch. Thanks for the voltage capacity info. It will prove to be useful.

I'll have to look around for the 20W lamps. This was my first pass as a low cost solution to keep me on the road during the dark days of winter. Now the fun comes playing with making it better.
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Old 09-09-05, 06:59 AM
  #843  
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Hey Zin, where there's a will, there's a way! Have fun my friend. I have some photos of the lights I made on my site. (20 watt) Peace, Ritz.

WWW.TOURDEPANTS.COM
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Old 09-09-05, 07:59 AM
  #844  
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Thanks Ritz,
Hey, how about a link to those photos on your web site. You have a TON of information there and its going to be rather time consuming to track down those photos. Thanks
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Old 09-09-05, 03:47 PM
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Here Ya go Zin: https://www.tourdepants.com/page_11.htm This is the only one I have up on the site right now. I'll add more Photos of the set-up when I get another digital camera. Peace, Ritz.
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Old 09-09-05, 04:49 PM
  #846  
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Originally Posted by Zin
Here's my contribution:

I replaced my server's UPS batteries every year. This year I saved the batteries for use on the bike. They are 9ah 12V. (I think they are 9ah) I am using one of them with a 55W halogen driving light and a tail/stop signal light wired to the brighter stop lamp. The battery and automatic charger are located in the "cooler" on the back rack. I'm getting around 30 minutes run time before I get a hint of dimming. I'm going to make some changes to get longer run time. My commute is only 6 miles one way so the 30 minute run time works fine for that, but if I have to run errands after work, then I may be pushing against the run time before I can make it home.


WOW that's bright! What sort of reaction do you get in traffic....
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Old 09-09-05, 04:53 PM
  #847  
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I'll bet they think he's a motorcycle!
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Old 09-09-05, 04:55 PM
  #848  
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Originally Posted by jeff-o

Now, if you rigged up all 10 of those LEDs, well, you'd still only be very visible to oncoming traffic.
Adding to Jeff-o's comment. With that you'll want to try for a good silver colored reflector in the housing to amplify the light. Perhaps you can make one from a thin foil like tape that they use for heating and ventilation ducts.
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Old 09-09-05, 05:40 PM
  #849  
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Yep. Motorcycle has been mentioned. I ride mostly rural roads with no shoulders on my commute into town. So, I really need a bright enough light to afford me some good visibility to the front. I'm going to try some lower wattage lights in order to get a good mix of light vs. run time.
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Old 09-12-05, 07:13 AM
  #850  
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I've noticed a number of people on this thread "re-purposing" Malibu Landscape Lighting Spot lights, although most seem to favor fabricating an enclosure for it.

This Malibu Light seems like it would be a good candidate as its stock enclosure is meant to be submerged in water.

Also has anyone tried using LED replacement bulbs for Malibu spots? Would something like this provide ample light?
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