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Discussion Starter #1
Waterbottle mount battery holder:

I just bent this aluminum strap into a rectangle and drilled a couple holes. Fits right on the bottle bosses and will hold this LiMnNi fatty pack nice'n'tight. I desoldered this pack to put a longer cord on it since it's gonna be my bar mount pack. I'll plasti-dip it tonight after my ride.
 

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Discussion Starter #2
The holder worked perfectly! No rattle, no brushing my calves against it...perfect! Now the LiMnNi is dipped and drying.
 

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Lets RIDE!
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Is that a mushroom growing on your top tube? You need to ride that thing more....a rolling bike gathers no fungus :smilewinkgrin:

Nice mount idea....I might try something similar for my 8xAA pack. Been keeping it under the seat in a tiny wedge bag.

chelboed said:
 

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Discussion Starter #7
Jim Z in VT said:
Is that a mushroom growing on your top tube? You need to ride that thing more....a rolling bike gathers no fungus :smilewinkgrin:

Nice mount idea....I might try something similar for my 8xAA pack. Been keeping it under the seat in a tiny wedge bag.
LOL...a towel.
 

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I've had pretty good luck with an L shaped bracket made from 1 inch by 1/16 aluminum flat stock. Put a 1/2 to 1 inch bottom on the L. The stuff is easy to bend by hand in a decent vise.

Drill two holes for bolting it to the water bottle mounts. You can countersink them if you want a flat surface. I just use regular bottle bracket bolts and let them stick out a bit.

The above works really well with my 9.6V 5AH NiMh battery (8 cells stacked 4 on a side) and would probably work pretty well with 4 Li-Ion 18650s stacked 2 on a side, or a dual cell battery like yours. Sit the battery on the bottom leg of the L, and wrap a nice velcro strap around the battery, bracket, and whichever bike tube you mount the bracket on. I like the seat tube, 'cause I run a wire to my home-made tail-light and another to the headlight.

I usually get away with a single 1 inch wide velcro cinch strap, but you could use 2 if you plan on jumping off boulders in the dark :)

Your holder looks pretty solid. I'd still consider using a velcro strap to make sure the battery doesn't fall out the side (it looked like you used one in the initial picture).

The big advantage to the L design is you can use a bunch of different battery types without having to change the bracket.

Mark
 

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Discussion Starter #9
I've had pretty good luck with an L shaped bracket made from 1 inch by 1/16 aluminum flat stock. Put a 1/2 to 1 inch bottom on the L. The stuff is easy to bend by hand in a decent vise.

Drill two holes for bolting it to the water bottle mounts. You can countersink them if you want a flat surface. I just use regular bottle bracket bolts and let them stick out a bit.

The above works really well with my 9.6V 5AH NiMh battery (8 cells stacked 4 on a side) and would probably work pretty well with 4 Li-Ion 18650s stacked 2 on a side, or a dual cell battery like yours. Sit the battery on the bottom leg of the L, and wrap a nice velcro strap around the battery, bracket, and whichever bike tube you mount the bracket on. I like the seat tube, 'cause I run a wire to my home-made tail-light and another to the headlight.

I usually get away with a single 1 inch wide velcro cinch strap, but you could use 2 if you plan on jumping off boulders in the dark :)

Your holder looks pretty solid. I'd still consider using a velcro strap to make sure the battery doesn't fall out the side (it looked like you used one in the initial picture).

The big advantage to the L design is you can use a bunch of different battery types without having to change the bracket.

Mark
Re: velcro...

This pack isn't going anywhere.:thumbsup:


I used it initially b/c the pack was shrink wrapped and slick. Now that it's got a cushiony tacky rubber coating...it's 100% static.
 

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Discussion Starter #11
You guys don't seem to understand. The battery doesn't slip in and out of the holder. I have to remove one mount screw and hold it out to get the battery in and out. The part where the holder goes around the pack is slightly concave/recessed, so when the thing is clamped down...I can't budge it with my hands at all. No strap needed.
 

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Does the carrier buzz when it's empty, or do you just remove the whole unit when it's charging and not in use? Are you using rubber grommets or o-rings to isolate the vibration (if there is any)?
 

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chelboed said:
You guys don't seem to understand. The battery doesn't slip in and out of the holder. I have to remove one mount screw and hold it out to get the battery in and out. The part where the holder goes around the pack is slightly concave/recessed, so when the thing is clamped down...I can't budge it with my hands at all. No strap needed.
did not even notice that..........NICE.
 

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El34 said:
To me, the whole unit it looks light enough to not need any sort of strap.
Looks like the screw can handle it just fine, from what I can tell from here anyway.

(as long as the screw stays tight, that is.)
It looks like it would chatter and hit the frame from trail vibrations. I would definitly put something soft between it and the frame then strap it down so it doesn't rub the finish off.

Personally I wouldn't bolt my battery to the bike. Sure it's secure, but you need tools to remove it. I'd rather have a velcro strap I can easily take off without tools.
 

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Discussion Starter #16
Well I don't know if you can see it, but there are two screws holding the mount on. One is a flat head screw that sits flush...the other is on the outside. The mount doesn't even touch the frame. See the closeup? It is a few thousanths off the frame and sits against the bottle bosses.

No chatter, no rattle. I can't handle that noisy crap.

Very quiet and simple.
 
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