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Commuting Bicycle commuting is easier than you think, before you know it, you'll be hooked. Learn the tips, hints, equipment, safety requirements for safely riding your bike to work.

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Old 11-08-12, 10:23 AM   #1
megalowmatt
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Cree / Magicshine, etc. - where the heck do you put the battery packs?

After 3 years of winter commuting I finally broke down and replaced my Planet Bike 1-watt front light with one of those CREE XML T6 lights. Well, call me naive but to my surprise these things work using external battery packs.

How do you all that use these mount the battery packs? The way I'm setting it up for today is to just put the pack in my rear rack bag as the cable seems long enough and I'll just secure the cables with velcro straps.

Anyway, any pictures or other creative ideas?
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Old 11-08-12, 10:24 AM   #2
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Water bottle cage.
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Old 11-08-12, 10:40 AM   #3
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I use the top tube. Works wonders.

For the headlamp, I thread the cord under the helmet and out the back vent and then drop the batter pack in my jersey back pocket and call it a day.

If you need pics, let me know and I can post some.
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Old 11-08-12, 10:48 AM   #4
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Normally I carry the extra battery in the front bottle cage on my bike. However, one of my bikes has a front rack, where I strap the battery when riding that bike. I have also tried carrying the battery in my jersey pocket with the light attached to my helmet, but don't like having the cord running down my back and the battery filling up my pocket. I have also tried velcro strapping the battery to my stem but it's a tight fit and I'm afraid it could fall off.
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Old 11-08-12, 10:54 AM   #5
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Mine has one of the two velcro straps on the battery coming off the battery and I need to reglue it. But, when it was right, put in on the top tube when running on the bars or the seat tube when putting it on my helmet. I have a splitter so it also powers a tail light I have mounted on my seatpost.
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Old 11-08-12, 11:04 AM   #6
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Quote:
Originally Posted by megalowmatt View Post
After 3 years of winter commuting I finally broke down and replaced my Planet Bike 1-watt front light with one of those CREE XML T6 lights. Well, call me naive but to my surprise these things work using external battery packs.

How do you all that use these mount the battery packs? The way I'm setting it up for today is to just put the pack in my rear rack bag as the cable seems long enough and I'll just secure the cables with velcro straps.

Anyway, any pictures or other creative ideas?
You can strap them under the stem, on top of the stem, under the top tube, to the water bottle cage or, my favorite, put them in a Cage Rocket and put them in the water bottle holder. These pictures are for an older light system but the idea is still the same and I still use the boxes. You can put two of the 2P2S battery packs in one box.




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Old 11-08-12, 11:09 AM   #7
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Originally Posted by cyccommute View Post
You can strap them under the stem, on top of the stem, under the top tube, to the water bottle cage or, my favorite, put them in a Cage Rocket and put them in the water bottle holder. These pictures are for an older light system but the idea is still the same and I still use the boxes. You can put two of the 2P2S battery packs in one box.




No water bottle love?
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Old 11-08-12, 11:48 AM   #8
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diy cage rocket
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Old 11-08-12, 12:07 PM   #9
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Mines under the stem. FYI, the batteries work better when they're warmer, expect to see some "shrinkage" in battery life in the colder temps. Not that you would have to worry about that in San Diego.

Last edited by no motor?; 11-08-12 at 12:16 PM.
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Old 11-08-12, 12:50 PM   #10
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Another DIY bottle.
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Old 11-08-12, 01:22 PM   #11
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Down tube water cage (I got the larger ruggedized 6 cell pack)

I've strapped the smaller, standard size packs to the underside of the stem before on my mtn bike, but I run the light on my helmet now with an extension cord. The extension cord may also help you in terms of mounting flexibility.
http://www.action-led-lights.com/col...xtension-cable

If you're running low on real estate for accessories, this little attachment is pretty neat.

http://www.action-led-lights.com/col...eadlight-mount
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Old 11-08-12, 01:24 PM   #12
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Quote:
Originally Posted by cyccommute View Post
You can strap them under the stem, on top of the stem, under the top tube, to the water bottle cage or, my favorite, put them in a Cage Rocket and put them in the water bottle holder. These pictures are for an older light system but the idea is still the same and I still use the boxes. You can put two of the 2P2S battery packs in one box.





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Old 11-08-12, 01:33 PM   #13
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Originally Posted by reshp1 View Post

If you're running low on real estate for accessories, this little attachment is pretty neat.

http://www.action-led-lights.com/col...eadlight-mount
Wow, that looks like a cheaper version of the dashboard genie.
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Old 11-08-12, 01:48 PM   #14
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No water bottle love?
Just melt the snow if you're thirsty.
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Old 11-08-12, 01:52 PM   #15
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Did yours come with a little velcro pouch? I just used that pouch it came with on the down tube, seems to be working great. I wrapped it on tightly with some gaffer's tape once I got it positioned perfectly, because the velcro is pretty thin/weak and it was shifting around. Now it's not going anywhere.

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Old 11-08-12, 01:53 PM   #16
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Just melt the snow if you're thirsty.
Make sure it ain't yellow first
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Old 11-08-12, 02:09 PM   #17
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Extension cord and thrown in the waterproof pannier. I also have a Y cable to power the taillight.
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Old 11-08-12, 02:14 PM   #18
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No water bottle love?
Winter. They'd just be useless bricks by the time I got to work anyway. A Camelbak with an insulated tube kit works better down to stupid temperatures anyway...and gives me a place to put the battery for the helmet light.
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Old 11-08-12, 03:36 PM   #19
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See if Gemini will sell you a single battery pouch:

http://gemini-lights.com/products/battery-pack-6-cell
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Old 11-08-12, 03:40 PM   #20
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Thanks for the suggestions and pictures. It's been a huge help!

Mine came with a pouch - I will probably start with it zip-tied up under the stem as I don't trust the velcro right now
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Old 11-08-12, 03:41 PM   #21
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On a naked bike, on the downtube; on a dressed bike, I use the extension and put the battery in the trunk or panniers.
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Old 11-08-12, 03:54 PM   #22
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On a naked bike, on the downtube; on a dressed bike, I use the extension and put the battery in the trunk or panniers.

I've thought of doing that, but didn't know if it'd overheat. Don't know why it would, but as hot as the light gets, I guess I just thought the battery would have some problems if not in moving air either. Sounds pretty dumb now when I actually see it written.
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Old 11-08-12, 03:58 PM   #23
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Not sure how the pouch attaches, but DiNotte sells a nice wide velcro strap for its batteries.
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Old 11-08-12, 04:00 PM   #24
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Top tube, stem, sometimes even on the handlebars. Mostly top tube.
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Old 11-08-12, 04:01 PM   #25
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If its Cold Outside, wear them under your coat, batteries work better if Not Cold.
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