Beat this build 2.0

[EbikeAdvocate]

What do I do with this battery?

http://em3ev.com/store/index.php?route=product/product&path=35&product_id=252

It has a bunch of wires coming out, and I think it is missing a BMS and charger if my understanding is correct.

What would be the best way to fix this?

 

[999zip999]

Could you give us one link to one kit and we can recommend a plug-and-play battery for the Hub motor and controller kit. Just one.

 

[EbikeAdvocate]

It is designed for the Adaptto, which has a BMS and charging coil built in.

I see, I have tracked this down

http://www.vectorebike.com/orders/componencts.html

Is all I need this: Mini-E 4kw
- 494.00 USD ?

Could my motor handle this: Midi-E 8kw
- 635.00 USD ? What is max wattage for motor I linked

 

[EbikeAdvocate]

http://em3ev.com/store/index.php?route=product/product&path=50_36&product_id=253

It seems this kit comes with a controller

75V @60 A = 5000+ W which is nice, and I like that 3KWH battery.


Only thing is I need a BMS and charger I think for that battery (if I understand correctly)

 

[EbikeAdvocate]

I wonder if anyone knows a bike that will fit this http://em3ev.com/store/index.php?route=product/product&product_id=158 or even the 9P one


I have decided on this motor though for sure so far because it is 4000W for a great price... + regenerative braking!

http://em3ev.com/store/index.php?route=product/product&product_id=253

 

[999zip999]

You would need the 25r cell. You need a cell that can do double of your needs. Remember if they don't tell the cell is because they're embarrassed to tell you the name of the cell they're going to use.

 

[EbikeAdvocate]

You would need the 25r cell. You need a cell that can do double of your needs. Remember if they don't tell the cell is because they're embarrassed to tell you the name of the cell they're going to use.

I would go with the 30Q if I went with it to handle short burst of 3kw and 2kw or so continous

I would prefer the 9p for more energy, but the question is does anyone know a good strong cheap MTB to mount that to?

 

[LewTwo]

One of the issues we've had is mounting everything on the handlebars with the existing gear change mechanism.

Indeed ... handlebar real estate is a problem these days. Thumb throttles are sometimes a good alternative. I stick with the stock brake levers as there is no regen braking on geared motors. Sometimes some of that equipment can me moved to an alternate location via an extension bar. I like the trigger shifters but rear wheel twist shifters can be flipped over and mounted on the left side so that the throttle can be located on the right where it belongs. Then there are the additional cable and wires to deal with. It comes down to a different solution for each e-bike configuration and sometimes more of an art than science. Unfortunately first time builders rarely have the alternative parts on hand and many are not likely to have tools or pieces parts so that they can shorten pre-terminated cables that may be too long for their system.

 

[LewTwo]

I wonder if anyone knows a bike that will fit this http://em3ev.com/store/index.php?route=product/product&product_id=158 or even the 9P one

I fear that you will need to check the dimensions against each perspective frame. The "additional images" have pictures with the dimensions (linked below). It is sometime helpful to make a cardboard model for that purpose.

 

[eAdrian]

Hi EbikeAvocado

It looks to me that you are raising 10 different questions by this thread. I believe you need much more research on existing threads and really make up your mind what you want to build.
You are posting links from entry point china kits to highend bikes like vector. We are not able to quite understand what you are trying to achieve.

1) Is this first ebike your are building? If so, forget about spotwelding batteries, BMS discussions etc.
2) Vector, qulbix, stealth highend bikes are for more advanced users. These still requires some knowledge and genuine interest from investment point of view.
This is often beyond >3 builds.
3) The bulky 20mah rectangular battery you posted. It is so difficult to mount these batteries. Just don't. Putting these batteries behind seat post looks bad and makes bikes doing wheelies very easily. All batteries requires careful measuring/estimation based on the frame. I
4) Are you aware of how much 5000W / 60A produces and expensive battery&bms you need in order to last? Also that normal bikes forks will have difficulties to keep this torque, even with grin torque arms on both sides. And also require bit of knowledge which wires to use and which connectors that can sustain 60A load. If you are getting motors +3k require bit of mounting skills compared to 1, 1.5k kits. Motors are bigger, bikes get heavier needing better brakes etc.
5) For some references:
1kw kit gives you +50 km/h with 48V battery.
MXUS 3k with 58V/40A drawn gives you almost 3 horsepowers. ( to give you rough idea of power compered to moped). Wheelies starting at this point.
Highend bikes with +80V gives you speed of 100km/h.

And of course there is so much more to understand Range, weather, offroad/commuting.

My recommendation is to start small. 1kw kit with controller & 48/52V battery as first build.
Then after doing this kit in next 6-12 months start a new build. You will learn many many things.

 

[dogman dan]

Fwiw,, if you are thinking about carrying a 50 pound battery, you need to be thinking about welding yourself a custom frame. Mine carries 40 ah of 48v in the front two trays. then if I wanted to, I can carry same in the rear rack saddlebags.

Dude,, walk before you can start to run,, or,, go buy a greyborg, stealth bomber, or zero motorcycle.

If you try to kludge up a DIY high performance bike without spending the money, like forks that cost $1000, you will be really pissing a lot of cash away, on your way to the emergency room.

Do you even ride? Do you know how to survive a lay down at 50 mph? I don't know,, maybe you do. If not,, see ya at the ER.

 

[Drunkskunk]

Hi EbikeAvocado

... I believe you need much more research on existing threads and really make up your mind what you want to build.
You are posting links from entry point china kits to highend bikes like vector. We are not able to quite understand what you are trying to achieve......
My recommendation is to start small. 1kw kit with controller & 48/52V battery as first build.
..... You will learn many many things.

+1.

I apologize for my previous comment that was a snarky accusation of spamming. After reading your follow up posts I understand that your original post wasn't just spam. But when you post links to ebay junk and ask what we think of it often enough, it starts to look like someone's attempt at click bate. it's fine if you don't understand, and want to know. It would be helpful if you added more context with your questions when you post a bunch of links like that.

It's clear you're starting from the very beginning in your understanding of ebikes, power, electricity, and bicycles in general. That's a lot of learning to do. Picking the parts you need from various vendors and sources is not something to be attempted without the skills to know how this is all suppose to work. I think you will be much more successful if you purchase a full kit from one source, and add it to a bike already known to work by others.
Here is an example of a full kit: https://www.ebikekit.com/collections/bicycle-kits/products/rear-wheel-26mph-w-li-ion-battery.

 

[Ykick]

Good advice DS although this guy get's around - https://endless-sphere.com/forums/viewtopic.php?f=4&t=85693&p=1253376#p1253303

Looks like a better path than he was originally going with all of this Pasta throwing on the wall...

 

[EbikeAdvocate]

Good advice DS although this guy get's around - https://endless-sphere.com/forums/viewtopic.php?f=4&t=85693&p=1253376#p1253303

Looks like a better path than he was originally going with all of this Pasta throwing on the wall...

Yes, brain storm is the #1 way, especially if we use a lot of brains!!!

 

[eAdrian]

I will do some extensive reviews and make tons of videos at least 1 video per day. I ride all day everyday

Oki. It looks that he will also make at least 5 seasons of he first experience of the ebike.

We wish you the best experience with your new bike.
You will have a lot of fun.