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Conversion kit with battery underneath frame

Old 05-03-21, 09:47 PM
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seibaatgung
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Conversion kit with battery underneath frame

Is it possible to mount a battery underneath the frame of a bike despite the lack of bolts? I want to use the bolts for a bottle. Does anyone sell strips of metal that bolt to the top and permit bolts below?
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Old 05-03-21, 10:21 PM
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2old
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Look at SKS anyplace water bottle mounts (Amazon $14.95. What I would do is use them to mount your water bottle and use the mounts in the frame for your battery. SKS and others have attachments to mount a water bottle to your seatpost handlebars, anywhere almost. I even have a mount that attached to the rail of my seat (bicycle, of course).
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Old 05-03-21, 11:27 PM
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seibaatgung
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Originally Posted by 2old View Post
Look at SKS anyplace water bottle mounts (Amazon $14.95. What I would do is use them to mount your water bottle and use the mounts in the frame for your battery. SKS and others have attachments to mount a water bottle to your seatpost handlebars, anywhere almost. I even have a mount that attached to the rail of my seat (bicycle, of course).
That's pretty close - but I'm looking for something that's held in place by the bolts on the side with them. Also what is that corner bag on your bike?
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Old 05-03-21, 11:56 PM
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The one in the picture is obviously a seat post mount, while the first one I referenced can be placed on the underside of the frame. The bag is just for tools.
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Old 05-04-21, 04:06 AM
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Old 05-04-21, 06:47 AM
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Pop N Wood
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Like 2old said the strap on SKS bottle mounts let you put a water bottle pretty much anywhere

https://www.amazon.com/SKS-Germany-1...37325585&psc=1

They obviously are not strong enough for a battery, especially one hanging upside down. If you want to mount a battery on the underside of your down tube you have a few options. If you have a steel frame you can drill and install rivnuts, put a bottle mount where you want it. A second option is radiator hose clamps to connect the battery mount where you want it. Since the battery will be hanging upside down in either case I would also put a velcro wrap around the battery.
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Old 05-04-21, 11:00 AM
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seibaatgung
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Originally Posted by 2old View Post
The one in the picture is obviously a seat post mount, while the first one I referenced can be placed on the underside of the frame. The bag is just for tools.
No I mean what's the brand and make of the bag? I've never seen a corner bag that also goes to the side. It's less aero, but might be a convenient tradeoff for weight.
Originally Posted by Pop N Wood View Post
Like 2old said the strap on SKS bottle mounts let you put a water bottle pretty much anywhere

https://www.amazon.com/SKS-Germany-1...37325585&psc=1

They obviously are not strong enough for a battery, especially one hanging upside down. If you want to mount a battery on the underside of your down tube you have a few options. If you have a steel frame you can drill and install rivnuts, put a bottle mount where you want it. A second option is radiator hose clamps to connect the battery mount where you want it. Since the battery will be hanging upside down in either case I would also put a velcro wrap around the battery.
Aluminum, not steel. Is there something like a radiator hose clamp that mounts on the other side to the bolts that are there?
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Old 05-04-21, 11:25 AM
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One of these might work

https://www.decathlon.com/products/u...QaAq-REALw_wcB

https://gearwest.com/topeak-versamou...IaAptrEALw_wcB

This one looks the strongest to me

https://dawntodusk.bike/product/bear-hug/

This silicone self fusing tape is excellent to wrap around the tube first to protect the paint. It alo crushes down making for a more secure mounting point. Put this on the tube then mount the external bottle mount on top of it

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Then once mounted I wrap one of these around the whole battery fixture. The silicone tape protects the paint where this mounts around back, plus adds some friction to keep things from slipping. I carry a couple of these in my touring panniers as well, excellent for securing things to the racks. You can get ones that are stretchy, but these solid ones mount very securely.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Last edited by Pop N Wood; 05-04-21 at 11:33 AM.
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Old 05-04-21, 11:26 AM
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Rosewheel bag (Amazon AIR). Also, look at Luna's no drill battery mount kit (type recommended by Pop) or find something similar maybe using hose clamps and a Wolf Tooth system.
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Old 05-04-21, 12:27 PM
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seibaatgung
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Originally Posted by Pop N Wood View Post
I'm not anywhere near converting yet (trying to research ahead first) but that looks pretty close to what I want.
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Old 05-04-21, 06:39 PM
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DO you really want to put a battery under the bike when debris can bounce off the battery and cause a short, or maybe you hop a curb thats just a little bit too high??

Mount it in a protected area of the bike.
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Old 05-04-21, 06:47 PM
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seibaatgung
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Originally Posted by speedy25 View Post
DO you really want to put a battery under the bike when debris can bounce off the battery and cause a short, or maybe you hop a curb thats just a little bit too high??

Mount it in a protected area of the bike.
I'm generally not into hopping curbs. Also isn't the circuitry protected?
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