How to install downtube ebike battery to your frame - How to build an ebike, episode 6
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- čas přidán 24. 08. 2024
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And in a couple years your frame will be trashed when the nutserts get ripped out from the weight of the battery. That happened to my wife's Trek 7.5 with the OEM mounting location. I strongly advise NOT using this mounting method. Mount the battery to something that wraps around the frame from the top tube. There exist water bottle mounting fixtures that strap around the tube. The Shark battery is too heavy to be mounted the way it was designed. It is a serious design flaw.
That's right. It happened to me too. I solved it by making an aluminium bracket which mounts to the existing bottle cage mounts, plus two jubilee/hose clips around the bracket to hold it securely onto the downtube, with some old inner tube to protect the frame from the hose clips and give a tighter fit. Ready made similar brackets used to be available, and have one on another bike, but they don't seem to be available any longer, at least not with the jubilee/hose clips, which is an essential part.
What was the weight of the battery?
@@kurtXhecticXpl about 10 pounds.
This only happened because you mounted it to a regular bike which is not designed to be an ebike. Real eBikes have much stronger frames and will not be damanged by the battery weight.
imo about to mount the battery that way. The battery feels really heavy though. Maybe it needs reenforcing
Why drill holes into the frame? I disassembled the battery cradle, added holes in the aluminum chassis, there are only 3 small screws holding the plastic body onto the aluminum chassis. Then mount the chassis onto the water bottle holes, and reassemble with the 3 screws that hold the plastic to the aluminum chassis. It worked and it means you don't have to deal with nutserts.
Hi bro! I am literally thinking of doing this but i lack knowledge in drill sizes.. what drill bit type and size you used?
@@Holyeddybear I pulled one of the water bottle screws, measured it with a drill gauge (first size the threaded section drops through cleanly), that tells you what bit size to use. Took me all of a minute. It takes longer to disassemble the battery cradle than to select the right drill bit.
@@ebikeengineer gotcha bro.. thank you.. will do it carefully 😀
My cradle sat off-set, meaning the battery was leaning to one side 😢, I bought the “Grin triple Bob mount”. They use alternate hose clamps. Which allowed me to shift the cradle just a little bit to center the battery.❤. Super strong mount.
I thought I was having an acid flashback watching that brick wall waiving.
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Why not uses the original two holes.
What is already there for the bottle holder.
Just need to drill two holes in the battery mount.
That way you don't need to drill extra holds in bike frame.
Obviously 2 at the bottom & 2 at the top will be the best.
I have a battery like yours that didn't fit the bottle mountings so I mounted it up side and it would have wobbled if it fitted correctly so I used 2 stainless steel jubilee clips joined and when tightened "forms" around the battery and it's rock solid.
Nice video. I used the jubilee clips before on my old bike that got stolen recently so starting again. This time a 36v 15ah
Sorry they stole your bike.
Hi, great tutorial. You have got a new subscriber. Could you please tell us what are the two drill bits you used at first and at last before applying the rivet? I wanna use the exact same to ensure I don't screw things up with my frame. I am buying the exact same tools as you did. Many thanks.
Where can i find these rubber bumpers for between the frame and battery bracket?
mine worked out perfectly since I had cupholder holes aswell but my batterry mount had 4 holes to choose from, and hopefully it dosent fall off
Excellent instructions. Thanks so much...
My battery is exactly like yours, and my battery won't mount to the bracket, because of the screw heads. What do I do to make it work?
i bought an ebike missing battery. Is it just as simple as buying a battery and charger? Or is there also some kinda "brains" , "logic controller" , or other safety feature that also needs to be included in the picture ? thx
im going to mount the battery upside down. Is that doable? I mean, ill reenforce it with some small wires. cant remember the name in English. But I would strap it just to be sure
Very good, well explained, clear, helpful video.
I bought an extra cradle for the battery mount but I didn’t come rubber shams that go on the pipe to keep it from wobbling thanks
What if you have a hailong battery with three bob slots. Would two screws be secure enough to hold it in place ?
Should the battery be located as low as possible? (But not interfering with the chain ring?)
Do you have concerns with compromising the strength of the frame when you drill holes in it?
Better to use a bag or zipties
Have a question, I have 5 Li Ion batteries, 18 volts and 5 ah each.
If I put 3 of them in parallel, that would be a 18 volts with 15 ah of capacity, then take that source into series with the remaining 2 batteries which should give me a power supply of 54 volts and 15 ah of capacity. correct???
Would the 35 amp upgrade controller handle that power source??
working on an idea, looking for some knowledge and expertise
thanks for your help with this
Excellently presented video. Thanks.
Would you happen to have the dimensions of that battery and bike triangle? I want to put one on my medium Schwinn Axum but I don't know if it'll fit.
I bought my first li-ion battery problem is it didn't come with a cord the connects the battery to the controller. So I bought and PC cord the connects to but I don't know how to connect the green black and white wires to the red and black wires.
Do you know where I can get the rubber bumpers for that. Thanks
please use glasses when drillin? from an old machinest.
Hi, have anyone found an adapter so you can use a down tube battery as a powerbank/ power station to charge computer/ phone etc?
So I just bought a ecotric fat tire and it came with a hl down tube battery but when I plug it in there is no on button, am I missing something or doing something wrong. My bike won't turn on
Great advice mate
ONLY VIDEO ON INTERNET THAT SHOWS INSTALLATION NOT EVEN MANUFACTURE. THANKS
Please can you speak to me about my battery replacement issue
Super helpful video; I’ve been looking for a tutorial like this for months off and on. Now I can mount my second battery instead of carrying it in a dry bag with ratcheting straps!
Excellent Jason! Sounds like you're ready for more adventures.
Can I drill a carbon fiber frame for the battery mount?
No! It's too fragile
where did you get the riveter with a mandrel of M6X1.0 because that is the most common rivet nuts and nut insert in the bicycle?
Nutsert Tool: amzn.to/2A2ig54
Can you put the battery upside down?
how do you know when the battery is full charge ?
You can also unscrew the bottom aluminum part on the battery, drill it and fasten using the factory bike mounting points. No need to drill your bike. Lunacycle does this czcams.com/video/AKmrLkXVwHA/video.html
So awesome! So glad I read your comment. This is what I will do too. 😆 Thanks and God bless 🙏
Hi, what volt & ah battery is it your fitting?
Is it enough to hold a 3kg battery in place with 2 screws? Has one of these ever come off?
Yes it is, and no I have not. It helps that it's impossible for the screws to come out with the battery installed.
use proper screws ;)
For a different point of view check out "Secure Battery Mounting, Grin's Double and Triple Bob Anchors"
czcams.com/video/GdqxPPxiYnU/video.html&ab_channel=GrinTechnologies
@@nc3826 takes too long for delivery 🙄. Have to wait two fukin weeks. I’m soo mad. Have to buy it from amazon cos they only ship to USA and Canada 🙄🙄
Whole 2 weeks??? flmao
Hi Kyle , I have a Ancheer Mini electrical Scooter and I want to Know if I can swicth my battery same model but different Ah from 6.0Ah to 10.4 Ah the same charging Voltage : 42 V .
Thank you .
Don’t know if I’m late, but yeah you can, if polarity and voltage are the same you should be good to go
Holy head tube batman
what about carbon frames?
Are the inside of the nut serts threaded?
yeah think so. if you look on google images for rivnut you can see the threads
I need to put my battery on the underside of the frame, i.e. with the top of the battery pointing down towards the front wheel and the ground. Is the locking mechanism strong enough to hold the battery in place like that, even hanging upside down? Thanks!
I have the same question but sadly no one answered. Just to be sure I think ill mount my battery the correct way considering how expensive it is. Don't want it slipping out of my hands or dropping mid ride. I'm sure the locking mechanism is strong enough to hold it tho. Gonna start my build today.
excuse me sir....your wall is a curtain...
hahaha! Thank you for letting me know.