FS Frame + Cromotor + Lipo

[BATFINK]

Something like this do?

http://www.ebay.co.uk/itm/48-VOLT-420HZ ... 1311wt_800

[gensem]

Hello gensem, can you tell me what voltage that electric horn is? is it just a standard 12 motorcycle horn? did you use some sort of converter to step the voltage down for it or are you running a separate battery for the horn? I have 48 Volt battery pack is there any electric horns that will work on that voltage?
Thanks

The horn is 12v, but you might find a 48v horn... im using a DC-DC converter, I think it is rated for 36-90v to 12v I ll search for the ebay seller and post it later.
Either way I would still use a DC-DC converter to have the flexibility to plug alot more devices.

[Racer_X]

Gensem, I am also looking for one of those DC-DC converter

im using a DC-DC converter, I think it is rated for 36-90v to 12v

Don't forget to post that link.

By the way I have been following your build and getting alot of inspiration, Great job so far and thanks for sharing your knowledge.

EDIT* Could it be this one? http://www.ebay.com/itm/DC-Golf-Converter-72V-60V-48V-36V-30V-12V-10A-120W-/250829288024?pt=LH_DefaultDomain_0&hash=item3a66973258#ht_3378wt_1270

[gensem]

Im using this one with 24s lipo charged to 4.1v (98v) and its still alive, im gessing the internal are 100v and its waterproof, small and light.

http://www.ebay.com/itm/DC-DC-Converter ... 45fcb7e9f0

[BATFINK]

Thanks I've just ordered the convertor

[gensem]

Battery box is ready! (and its completely removable now)
24s 2p using 8000mah Zippys

Looks so sexy, many many thanks for the help Oatnet!

[gensem]

Another small update before the gran finale (hoping)...
I just burned my foot with the soldering iron... stepped on it, taking a break from work now and to post another pic.

[shock]

Nice build you got going here! Pretty stealthy for a high power build.

A question, how did you get the falcon EV logo blacked out on the triangle bag? I was thinking about "sharpieing" mine, but yours looks pro, so I thought i'd ask.

[gensem]

Hehe...
i just used a matte black spray paint for the time being.... but ll try to remove it with a razor or scarpel later.

[GCinDC]

I just burned my foot with the soldering iron... stepped on it, taking a break from work now

pic or it didn't happen.

[Accountant]

I just burned my foot with the soldering iron... stepped on it, taking a break from work now


This sport is very dangerous.

Please make some movies once you get healthy again.

[gensem]

I just burned my foot with the soldering iron... stepped on it, taking a break from work now


This sport is very dangerous.

Please make some movies once you get healthy again.

Im fine Vladimir, its was a 30w soldering iron so the burn was not deep. ll do the videos as soons as the lyen 18fet arrive, I have a gopro waiting.

[gensem]

Dont you just love when a HK power supply fails on you in under a week? hopefully I had a ATX power supply thats going to save my weekend tests.

[gensem]

Was testing the bicycle in a steep street and it stopped working... im guessing the 12 fet controller was no able hold itself during the climb
After the problem CA displays 12kw of power being used when I turn the controller on and thats without any throttle input, any possible hint or what component to looks first when I open the controller?

[gensem]

im still clueless at what failed inside the controller

[fabiograssi]

Very nice ride, Gensem!

I had the impression that your setup has plenty of power to use on the streets with safety. A real sad thing the controller fail. I saw that you checked the controller temperature in some point of your ride... How hot it was?

[Accountant]

THX for video, sorry about controller.

Hope that 18 fet Lyen will be much better.

[GCinDC]

im still clueless at what failed inside the controller.

nice vid.

did you open the controller? if caps are blown, there may be liquid inside case. if fets blown, there may be burn marks around FET legs... my controllers sometimes get so hot that solder inside melts and shorts something, often the CA speed wire that is soldered to the top of the shunt...

does the CA come on when power is connected?

a lyen ebike tester is very handy, especially for troubleshooting hall/phase wire problems.

[gensem]

Very nice ride, Gensem!

I had the impression that your setup has plenty of power to use on the streets with safety. A real sad thing the controller fail. I saw that you checked the controller temperature in some point of your ride... How hot it was?

Controller was not even hot to the touch... I have a fan running inside the bag.

[gensem]

im still clueless at what failed inside the controller.

nice vid.

did you open the controller? if caps are blown, there may be liquid inside case. if fets blown, there may be burn marks around FET legs... my controllers sometimes get so hot that solder inside melts and shorts something, often the CA speed wire that is soldered to the top of the shunt...

does the CA come on when power is connected?

a lyen ebike tester is very handy, especially for troubleshooting hall/phase wire problems.

Im yet to test it but it wasnt supposed to be hot...
I have activr cooling and was pushing only 5kw maybe less.

[GCinDC]

After the problem CA displays 12kw of power being used when I turn the controller on and thats without any throttle input, any possible hint or what component to looks first when I open the controller?

i've seen apparent Amps/Mph activity on controller at rest when the CA speed wire has fallen off the place where it was soldered to the top of the shunt... i know i have pics in my GT thread but couldn't find them..

open the controller!

[GCinDC]

argh, i finally found it. some fun riding. then up looonnnng hill. then at 1:03 the power dies, and closeup of inside the controller..

[gensem]

im working atm, but ll do went I get back home.

[gensem]

Controller looks perfect from inside, but the rshunt was very hot for sure( and the yellow wire got loose)... look at the picture.



Would the yellow speedo* cable make the controller cut the power?


Btw can I just add alot of solder to the shut so it doesnt overheat as easy? Or should I just repair the wire?


Thanks to for the tip GC, it was spot on!

[chroot]

Bingo, Just like GCinDC's controller and do the soldering yellow wire to shunt then your controller will back alive again!


No need put lot solder on wire+shunt, Just strip 1" yellow wire and hugging the rshunt then solder it. It helps secure.