A123 AMP20M1HD-A Battery pack kit

Batteries, Chargers, and Battery Management Systems.

Re: A123 AMP20M1HD-A Battery pack kit

Postby gensem » Tue Apr 10, 2012 1:40 pm

I like the 6s kits, you can use a123 cells like lipo that way
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Re: A123 AMP20M1HD-A Battery pack kit

Postby docnjoj » Tue Apr 10, 2012 2:11 pm

Depending on price I need 2 6S kits for a split 12S pack. Um I hate to ask this but now where do we get cells from?
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Re: A123 AMP20M1HD-A Battery pack kit

Postby agniusm » Tue Apr 10, 2012 2:24 pm

Top covers:
4S
Image
6S
Image
12S
Image
18S
Image
24S
Image
30S
Image

6mm threaded brass bars will screw in to end positive and negative blocks size 45x10x10 and through top plate. I will probably leave it 20mm long so The Builder could trim it to hes/her requirements, what do you think?. I thought this would make tidy job connecting packs in series or parallel:
Image
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Re: A123 AMP20M1HD-A Battery pack kit

Postby docnjoj » Tue Apr 10, 2012 2:38 pm

Looks like it would make a neat tidy post. Great!
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E-bike stable at our house
Bike-e electric front brushed C/L
Steintrike Mad Max full suspension trike rear Xiongda 2 speed motor in testing
Sun USX delta trike 9C front wheel sort of front suspension
Frame of homebuilt trike in shed with Bafang still on it
Agniusm/A123 AMP 20 36 volts on the Steini and old 10ah Ping paralleled with 12 ah Fatpacks on USX
My wife and I ride the trikes
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Re: A123 AMP20M1HD-A Battery pack kit

Postby Timmey » Tue Apr 10, 2012 2:39 pm

Doctorbass wrote:Interesting, is this project you talk about with teh ermax motor? http://www.diyelectriccar.com/forums/showthread.php/batterys-formula-student-racing-car-60574.html

Doc


Same competition, different team :P

We decides against the Emrax motor because of the prototype-stage it was in.
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Re: A123 AMP20M1HD-A Battery pack kit

Postby regmeister » Tue Apr 10, 2012 2:45 pm

Hi, I was wondering what current rating you expect to support with this package? Thanks for your reply.
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Re: A123 AMP20M1HD-A Battery pack kit

Postby agniusm » Tue Apr 10, 2012 5:00 pm

I was looking to calculate exactly but it is too complicated. I guess if 20x6.3mm (126mm^2) copper bar is good for 320amps, if i would use 6mm round bar, meaning A=pi r^2=28.26mm^2, i would think that it would be good for 40amps brass or 70amps copper. I might be wrong but then again i am looking more at the clamping of the cells in to the pack and Builder should decide which way to terminate the pack. It is just not viable to design something to individual needs. I need to check current draw in my setup, and i use 14AWG on terminals, BMS and controller are rated at 30A.
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Re: A123 AMP20M1HD-A Battery pack kit

Postby 999zip999 » Wed Apr 11, 2012 12:48 am

A row of given light bulbs, or what is the thing they do with coil of wire in a bucket of water ?
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Re: A123 AMP20M1HD-A Battery pack kit

Postby agniusm » Wed Apr 11, 2012 8:42 am

Have some news and they aren't bright. Highest cost is in brass and cnc making blocks and PCB. My part is 40% which includes all delivery costs of parts to me, driving expenses and cost of packaging, taping blocks by hand. All conversions done 1USD=2.6LTL (Lithuania Litas) Here it goes:
4S -58USD
6S - 71USD
12S - 130USD
18S -226USD
24S -324USD
30S -421USD
+ shipping
This is not final as i am going to firm to get a quote for PCB. I used last price from firm to calculate this, but last time they had to design PCB. Will know for sure on Monday.
I am including my calculations in LTL, for you to see. All cards on the table, no hidden charges. Big chance that i will not go for this as the cost is to high.
Attachments
A123 Part list.rar
(10.57 KiB) Downloaded 90 times
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Re: A123 AMP20M1HD-A Battery pack kit

Postby ohzee » Wed Apr 11, 2012 8:45 am

That's about on par with what I expected to Pay and would be happy to pay for 4 - 6S kits now if interested.
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Re: A123 AMP20M1HD-A Battery pack kit

Postby agniusm » Wed Apr 11, 2012 9:02 am

Thanks. I will update the cost after i will know PCB price and then it will be for sure. Will see then how many Builders will be interested cause i need to get rid of 660 blocks including my 4 x 6s for cargo bike cause that's the smallest amount of material i can buy.
Thanks again for support.
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Re: A123 AMP20M1HD-A Battery pack kit

Postby docnjoj » Wed Apr 11, 2012 10:49 am

I there any way you can convert your .rar file to .xls? I cannot open it in xcell.
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E-bike stable at our house
Bike-e electric front brushed C/L
Steintrike Mad Max full suspension trike rear Xiongda 2 speed motor in testing
Sun USX delta trike 9C front wheel sort of front suspension
Frame of homebuilt trike in shed with Bafang still on it
Agniusm/A123 AMP 20 36 volts on the Steini and old 10ah Ping paralleled with 12 ah Fatpacks on USX
My wife and I ride the trikes
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Re: A123 AMP20M1HD-A Battery pack kit

Postby ohzee » Wed Apr 11, 2012 10:52 am

rar is a compression file - you can use most zip type programs to uncompress it and then you can open it with xcel
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Re: A123 AMP20M1HD-A Battery pack kit

Postby docnjoj » Wed Apr 11, 2012 12:28 pm

Thanks! I was able to open it with Winzip.
otherDoc
E-bike stable at our house
Bike-e electric front brushed C/L
Steintrike Mad Max full suspension trike rear Xiongda 2 speed motor in testing
Sun USX delta trike 9C front wheel sort of front suspension
Frame of homebuilt trike in shed with Bafang still on it
Agniusm/A123 AMP 20 36 volts on the Steini and old 10ah Ping paralleled with 12 ah Fatpacks on USX
My wife and I ride the trikes
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Re: A123 AMP20M1HD-A Battery pack kit

Postby agniusm » Wed Apr 11, 2012 1:46 pm

I am going to capital to try and negotiate PCB price. At the moment we have 8 x 6S sets requested for given price. I have checked shipping cost and it is ~61LTL which is ~24USD 50 - 500grams (www.post.lt) will check with DHL as well. Folks if possible let me know your intentions till Friday 12.00 UTC +02.00 (Timezone).
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Re: A123 AMP20M1HD-A Battery pack kit

Postby docnjoj » Wed Apr 11, 2012 3:21 pm

I'll take 2 6S kits please!
otherDoc
E-bike stable at our house
Bike-e electric front brushed C/L
Steintrike Mad Max full suspension trike rear Xiongda 2 speed motor in testing
Sun USX delta trike 9C front wheel sort of front suspension
Frame of homebuilt trike in shed with Bafang still on it
Agniusm/A123 AMP 20 36 volts on the Steini and old 10ah Ping paralleled with 12 ah Fatpacks on USX
My wife and I ride the trikes
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Re: A123 AMP20M1HD-A Battery pack kit

Postby agniusm » Wed Apr 11, 2012 3:51 pm

Ok, thats 10 6S kits total.
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Re: A123 AMP20M1HD-A Battery pack kit

Postby ambroseliao » Wed Apr 11, 2012 3:59 pm

If there isn't a 12S kit, then I'll take 2 6S kits too! :D
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Re: A123 AMP20M1HD-A Battery pack kit 4S,6S,12S,18S,24S,30S

Postby agniusm » Thu Apr 12, 2012 8:13 am

ambroseliao wrote:If there isn't a 12S kit, then I'll take 2 6S kits too! :D


There is 12s kit available as is 4S, 18S, 24S and 30S i just need to know before i start ordering materials on friday.
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Re: A123 AMP20M1HD-A Battery pack kit

Postby Doctorbass » Thu Apr 12, 2012 9:08 am

Do you plan on making 2p kit? or 16s or 28s kit ?

I would be interested! :wink:
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Re: A123 AMP20M1HD-A Battery pack kit

Postby agniusm » Thu Apr 12, 2012 9:54 am

Hi, sorry mate but at this time i do not have enough time to do layouts for PCB as other things taking a lot of time + getting married next month. Later, possibly, at this stage you can get any configuration from given setups meaning 12S+4S will give you 16S and then it is just a matter of making similar to headway joints with 8.5mm holes and bolting packs together like car battery or if you want cut the top section of pcb and do what i did in my project:
From this (2x6S):
Image
To this (12S):
Image
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Re: A123 AMP20M1HD-A Battery pack kit

Postby 999zip999 » Thu Apr 12, 2012 7:16 pm

Looks good need money for 2-12s. Thinking
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Re: A123 AMP20M1HD-A Battery pack kit

Postby agniusm » Thu Apr 12, 2012 10:59 pm

The list:
Ohzee - 4 x 6S
Docnjoj - 2 x 6S
Ambroselio - 1 x 12S
Kristoffer 2 x 12S
Toango 8S(4S+4S) or 18S(12S+4S) ?
999zip999 2 x 12S ?
Me 4 x 6S
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Re: A123 AMP20M1HD-A Battery pack kit

Postby ohzee » Thu Apr 12, 2012 11:08 pm

So we got enough to do business buddie ?
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Re: A123 AMP20M1HD-A Battery pack kit

Postby agniusm » Thu Apr 12, 2012 11:37 pm

ohzee wrote:So we got enough to do business buddie ?


Yes, i have added one 24S couple 6S and 1 4S extra, just in case. I will update the price today if will be possible. Hope guys who make PCB will not be greedy.

I will not include thermal wrap in the kit as Chinese would not sell small quantities and cant source here locally. i will adjust price accordingly.
On the other hand i would strongly suggest to use protection on the pack because cells are fragile enough to puncture them easily (happened to me) and (info from another thread) they loose vacuum and solvent which we don't want. If happened there are suggestions to use vacuum to suck out air, than reseal it, i would think scotch tape using hair dryer to make it tight.
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