Search found 292 matches

by shortcircuit911
Mar 29 2010 12:34pm
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

Thanks for the tip I will keep that in mind.
by shortcircuit911
Mar 29 2010 12:24am
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

Glad to help. They are really cool people, and have great prices.
by shortcircuit911
Mar 28 2010 3:56pm
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

www.tncscooters.com for $50 plus shipping. They have the best prices on scooter parts. They also have 24, 36, and 48v chargers.
by shortcircuit911
Mar 27 2010 9:28pm
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

I just got back from a test run, and top speed was 32.5mph. my bike might be faster,but I ran out of road and didn't want to blow a stop. So basically I gained .5 mph from modding the traces. I won't know how much HP I gained until I fix my watt meter, or my new one comes in. More updates coming soon
by shortcircuit911
Mar 27 2010 12:32am
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

So I came home today,and no parts. I wasn't really sure what to do with myself so I decided to thicken the traces on my controller. I have plenty of 12 and 14awg wire laying around so I said why not. It was rather simple to do. Along with the wire I added heavy amounts of solder. Before I put it bac...
by shortcircuit911
Mar 26 2010 2:28am
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

Thanks I will post more as soon as I get these parts. I just got my 60v charger so now I can use one charger instead of 2 (48v and 12v). Hey lyen I already ordered the parts, but I still may take you up on that cable. Give me about a week, and I will let you know. That's cool we are so close to each...
by shortcircuit911
Mar 25 2010 12:40pm
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

So over the past week or so I have been preparing to program my controller to my specs. First off I wanted to install parameter designer on my computer. This was a bit trickey for me because my computer was missing the comdlg32.ocx file. So with a lot of help from Kingfish, as well as from methods, ...
by shortcircuit911
Mar 16 2010 2:11am
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

Wow you got 42A without a shunt mod, that pretty good. My watt meter maxed out at 23 amps before I modded the shunt. Since the mod I have seen a peak of 57 amps. I did notice that the stock caps could handle 60v, but I wanted to play it safe and replace all the 63v caps. I think I will keep it at 60...
by shortcircuit911
Mar 15 2010 9:32pm
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

Hmm. I guess I will just buy a 60v charger from tnc. Im currently unplugging one battery, and charging 4 with my 48v charger, and the other with my 12v charger. This is a huge pain in the neck. I guess I'll have to stick with 60v of lead until I get some lithium cells. I have heard nothing but good ...
by shortcircuit911
Mar 15 2010 1:32am
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

ya those caps were monsters. The voltage dropped down to 53.9v which I thought was a lot but oh well. I was thinking of adding a 6v, but I don't know of a 66v charger, would I need to use a 72v? So dnmum you are the one who modded those controllers for jason huh? (The shop I work at is a dealer for ...
by shortcircuit911
Mar 14 2010 5:58pm
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

Well I got to the electronics store this weekend and picked up the caps and some 3w resistors, and stayed up until 4 this morning installing them. I must tell you it was a major pain cramming those caps in that controller. The diameter of the new capacitors was sooo much bigger than the stocks ones....
by shortcircuit911
Mar 11 2010 1:12am
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

Sick I guess I will go with the 420 ohm resistors. Ya I was really suprised when my watt meter said 53 amps. The controller was a little warm after running it for a bit, so I gess I should be careful. I wasn't planning on using the LVC since I have a watt meter, so when it drops to 57v I will have t...
by shortcircuit911
Mar 11 2010 12:25am
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

TMaster you are the man! Ok I took my controller apart again so I can get you the numbers on that voltage regulator. My controller has a LM317T voltage regulator. Hopefully that gives you a better idea of how much resistance I need. I think I will pass on the mosfets since you think they will hold u...
by shortcircuit911
Mar 09 2010 11:17pm
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Re: Controller mod

Thanks for the reply TMaster. So I got the controller all apart, and here is what I found. The caps (3) are 63v 470uF. I also saw (2) 25v 100uf, (2) 50v 47uF, and a 63v 100uF. The mosfets (9) are p75nf75. I found the data sheet online, and it says they are 75v .0095 ohm 80a-220. There are two big re...
by shortcircuit911
Mar 08 2010 4:25pm
Forum: E-Bike Technical
Topic: Controller mod
Replies: 67
Views: 7664

Controller mod

Hello all, I have a set up from e-bikekit.com, and want to make some modifications to it. I have already done a shunt mod to it, and am currently running it at 48v. I would like to run it at 60 or even 72v, but I think I will blow some of the circuitry. Can anyone tell me what size caps, mosfets, or...
by shortcircuit911
Feb 19 2010 5:22pm
Forum: E-Bike Technical
Topic: Hall sensor replacement
Replies: 4
Views: 737

Re: Hall sensor replacement

I do have a volt meter. I was reading online on instructables about hall sensor replacement, and my motor had the symptoms they were describing of failed hall sensors.
by shortcircuit911
Feb 19 2010 1:32pm
Forum: E-Bike Technical
Topic: Hall sensor replacement
Replies: 4
Views: 737

Hall sensor replacement

Hey everybody, I'm a noob with a couple questions. I have a 36v 500w bldc hub motor that has been acting up. Basically the motor would make a loud noise when spinning, and would have dead spots that required me to spin the wheel in order for the motor to engage. This led me to believe that the hall ...