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[texasboyjmb]

I plan on doing an electric motorcycle build. I want to keep it under 4000 dollars.
The engine is a mars 1003 (625){for evdrives.com},
the controllers a axe 7245(636(sale price now565) ){for evdrives.com}),
 36 batteries  headway lifepo4 40160s{evasseble.com(900)
 but bms not sure and also need help with the set up and the charger not sure but those should be no more than 500(at least I hope)bike should cost between 500-1000(cbr 600 ninja 600)

What about 25S5P configuration can I have some help where can I go to learn what exactly to do a lot of my ideas come to http://www.evalbum.com/3630
Ps I really going to buy a kit for 1224 http://www.evdrives.com/kits_conversion.html Kit # 4AC - 72 Volt System Series w/ PM Motor 
So the build should be around 3500(1224motor+controller+solenoid900batteries bms+charger500+ bike900
Please help what am I missing

[texasboyjmb]

also i want to get 40-60 miles and whould need a average speed of 60-70 the batteries should be 200 12a headways http://www.alibaba.com/product-gs/498383043/headway_lithium_ion_phosphate_cylindrical_cell.html

[frodus]

I think you might be a little confused on batteries. 16Ah headways, 36 of them would be a 18s2p setup and you'd have ~1800Wh of batteries and less than 20 miles range. I don't know where you got 25s5p setup from 36 cells. If you really want 40-60 miles, you're going to need at least 6kwh of batteries.... and each 16Ah headway is ~50Wh... so that would require at least 120 batteries and at ~$25 each, that's $3000 just in batteries, and that doesn't include shipping from evassemble which is in China.

The rest of the bike looks ok.

If you're in the US, I can get you a nice lifepo4 charger for $400 and it's 72V. That's pretty good for a sealed 1000W charger.

[texasboyjmb]

did you not read my second post to correct that i said 200 10a headway

but i need help finding out how to configure them or really to learn how also the bms, charger, dc to dc converter as well

ps the price of the 10a are 11 dollars so i should pay 2200 (but im going to buy 100 one month then another)

[frodus]

I did read it, and you said 36 cells first, then 25s5p (125 cells), then 200 cells..... neither of those 3 are the same.... if you want to be a snippy, that's fine, but newbies are a dime a dozen and most of them have no clue what is what, so pardon me if I assume you're confused, but nothing in your post had any similarities between the three setups you were talking about. If you want to avoid this, edit your post before you hit send.




Anyway  ...

200 cells is going to be difficult if not impossible to fit in a bike, I know this because I tried to fit 192 cells in mine, can't do it, so I'm going with either 144 or 160 10Ah cells. I'd get 16Ah cells if you can, you'll fit more. I assume you want to do 72V, which is 24 cells in series (not 25, 25 is an odd number for BMS and chargers), that would be 192 cells total and 8 in parallel of the 10Ah. If you want to use the energy equivalent 16Ah cells, you'd need about 120 of the 16Ah cells, and you'd need 5 in parallel. Both would be ~6.1kwh.

Always put groups in parallel first, then series. So you'd make 24 groups of 5 cells, and put those groups in series with eachother.

Charger, get a deltaQ if you, I can program it and it'l be set to the right charging voltage. You could also get an elcon. Don't get something cheap, get something that works and won't ruin your pack. For BMS use either elithion, minibms or Manzanita Micro BMS's. I can help with manzanita or elithion.

[texasboyjmb]

wast trying to be snippy just wasn't sure did you read it i do want to use 16a but they are 25 each and that would mess up my budget i saw 10 ah for 11 and 12 ah for 7.8(but i think it was a listing mistake cause i cant find it now ) and can u tell me the price of the charger and other stuff or at least the site

also what about doing to motors would that give me more power(of crouse yeah but more continuous more that would be worth the cost) would the engine be able to do 60-70 continuously

THANK YOU

[Bogan]

I did some calculations for a dirtbike application of that motor recently, 24s3p (headway 16ahr) gives a 53kg drive system with just enough amps to get the most out of the motor, and 48ahr. I also looked at thundersky 90ahr, which are significantly cheaper, but don't weigh much more than the equivalent 90ahr of headway.

Unlike frodus, I haven't really read your posts properly, as the grammar is quite poor; so I can't figure out what you are asking.

[frodus]

Not sure where you found headway for $11.... even direct they're $12-13 a cell plus customs/shipping/etc.... it's an excelent price if you can get them for $11. Lowest published price I could find was $15.50, which would be $2976 for 192 cells. 120 16Ah cells is 2998.8, and MUCH MUCH less connections, less bussbar.... so consider that too. 192 connections compared to 120.

price of a DeltaQ charger is $400 through me, brand new in the box, programmed by me for lithium. It's for a ~72V system.
http://www.delta-q.com/products/quiq.shtml
I have a couple available.


Another motor would be fine if you can fit it along with those batteries, but you'd be better off getting a larger brushed series wound motor like those D&D on evdrives.com.


I agree with Bogan, your posts are very hard to read, and it's difficult to make out what you're saying.

[texasboyjmb]

i'll redo my post

I plan on doing an electric motorcycle build, I want to keep it under 4000 dollars. The requirements (or ate least hopes) are 60-70 mph continually, also 40-60 range (eventually). The bike would probably a cbr 600 or ninja 600.

Check List
The engine:  mars me 1003 (625){for evdrives.com}

The controllers a axe 7245(636(sale price now565) ){for evdrives.com}),

The batteries: 125 batteries headway lifepo4 40160s{supplier 19.5 each so 2340 total)

The charger: delta q 400 (with help from Frodus)

The bms: haven’t looked(next thing I’m doing)
AM I MISSING ANYTHING

Ps I really going to buy a kit for 1224 http://www.evdrives.com/kits_conversion.html Kit # 4AC - 72 Volt System Series w/ PM Motor 
So the build should be around 3500(1224motor+controller+solenoid900batteries bms+charger500+ bike900
I thought the me 1003 would be good to get since its light and the hp should be 12-13ish continually but reconsidering because Frodus recommended a d&d s
Also dose anyone know about running 2 engines
 THANKS
 




EDIT just found out that i can get the 10ah for 12.2, the 12ah for 14.65, the 15ah for 18.3,but i think im going to stick with the 16ah for 19.5

[Bogan]

The 1003 will get you to 60-70mph on a faired bike like a cbr or ninja, and will probably do it at a decent acceleration too!

The AXE7245 is a good choice I think, I'm running a AXE and is very good to use, and easy to program in custom current/voltage limits.

125 cells doesn't sound right, you'll want 24S, and 3-5p for headway stuff, 3 being minimal, and 5 being about right for the bike weight. Consider thundersky too if you want more capacity for a similar price, though it will be a lot harder to fit them all in there.

The kit is a good deal, the one I was looking at for my dirtbike build in fact, chuck a throttle in there with it for good measure!

Instrumentation is something you haven't mentioned, voltmeter, ammeter and amp-hour counter are nice features to have, though not essential to getting it to run.

Other things to consider is the mechanical side, have you got access to a welder? (preferably an AC tig for aluminium lightness). Do the cells come with threads etc for connecting them or will you need to use a cell-welder? And also budget another few hundred for new sprockets/chain and welding cable, and another couple of hundred for contingencies!

[frodus]

That sounds like a good start. Just keep in mind, shipping on those batteries is from China, so add a few hundred dollars to that.

Bogan, He's probably ordering some extra. 120cells would be 24s5p on the 16Ah batteries and be 80Ah. Gonna be hard to fit, but ordering 5 extra sounds like a safe plan. I ordered 20 extra.


Some missing things (sorry if I repeat Bogan):

Contactor, depending on what controller you use, get an EV200 from ebay for ~$70
DC-DC converter to convert back voltage to 12V so you can run lights and BMS if your BMS runs with 12V
Front sprockets (surpluscenter.com has them for under $5, use #50 sprockets, it's the same size as 530 chain)
Rear sprocket (sprocketspecialists.com, get it for your bike and get 530 chain size, it'l be easier later.... finding front sprockets in other sizes is a pain)
Chain, it'l be longer than original, surpluscenter has this too. Get a chain brake too.
Gauges of some sort, consider a Cycle Analyst.
Fuses, welding cable, emergency stop (or you can use the engine kill switch)


BMS, might as well use a miniBMS, it's good bang for the buck. Just wire it to protect your batteries and you're good to go.

That should be good for now.
Let me know when you want to pull the trigger on that charger, won't have them for long.

[Allen_OKC]

  Maybe i can help you texasboyjmb - first of all its OK to misunderstand how the battery thing works, its a little confusing as it was with all of us at the begining...

You can rely on the fact that Frodus knows what he is talking about - as he has helped so many here...

my 72 volt chopper is set up for a total of 72 lifepo4 cells - the configuration is as follows, 24S3P - this will be a good start for a fast but doable motorcycle... as far as cost of batteries, well they are gonna be expensive...

The sooner you understand that the better - you can get AGM lead batteries, but they are very heavy and wont give you the distance your looking for...

But what ever you do, dont give up - you will find it to be worth it in the end...

[texasboyjmb]

Donor bike   1000   cb750
kinda bored do decided to redo my electric motorcycle build, that probablywill never happen but if it did it would look like this

I plan on doing an electric motorcycle build; I want to keep it under 5000 dollars. The requirements (or at least hopes) are 60-70 mph continually, also 40-60 range (eventually).

Motor                       580           Motoenergy ME1003 Motor
Batteries                      2500   winston 40*50
Controller                       490   Alltrax AXE 7245 72V 450 amp
Charger                       435   delta q 400
DC-DC Converter               0   
Throttle                       40      magura
Contactor                       85    SW200 72 volt Solenoid
Battery Monitor/ Gauges   242   
Circuit Breaker/ Fuse       0   
Sprockets and Chain       0   


add in the blanket what you think i should get for the missing
if it ever became worth it to build i would record the build with a camera and put the build on you tube but i dont think ill ever really make it.