Search found 103 matches

by flez1966
Apr 07 2014 12:26pm
Forum: E-Bike Technical
Topic: Toasted Amped Bike geared motor ->now rewinding thread Pg. 2
Replies: 39
Views: 3414

Re: Toasted Amped Bike geared motor (photo!)

new clutch wont stop the 123 above...

if you can get the stator out and re-dip it in a 5gal bucket of varnish etc, but they are usually dipped in a vacuum on a good motor to get the air pockets out
by flez1966
Apr 07 2014 11:58am
Forum: E-Bike Technical
Topic: Toasted Amped Bike geared motor ->now rewinding thread Pg. 2
Replies: 39
Views: 3414

Re: Toasted Amped Bike geared motor (photo!)

I would not trust that motor. 1) insulation is burnt up so not holding wires firmly still 2) as you increase power the motor windings will jiggle about, flaking off more insulation 3) if we have not yet had a dead short or blown controller, goto 1 this is the spiral of death i predict for that motor...
by flez1966
Feb 22 2014 2:21pm
Forum: General Discussion
Topic: Cheap alternative to gopro finaly
Replies: 22
Views: 6198

Re: Cheap alternative to gopro finaly

[youtube]http://www.youtube.com/watch?v=xnHDu-oW7_Y[/youtube]
http://www.youtube.com/watch?v=xnHDu-oW7_Y

Think i may finally get something that looks like a gopro...
by flez1966
Jan 29 2014 6:37pm
Forum: Battery Technology
Topic: Building cylindrical battery pack for Dummy!
Replies: 80
Views: 37678

Re: Building cylindrical battery pack for Dummy!

I think i'm missing the point, thread title says making a cylindrical pack,but you seem to be constructing rectangular ones.... :roll:
by flez1966
Jun 10 2013 2:54am
Forum: Battery Technology
Topic: The ultimate onboard charging solution
Replies: 43
Views: 16219

Re: The ultimate onboard charging solution

water gets *everywhere* if its raining well.. I had so much of it after 2 contrllers getting wet and blowing 3 times, I took the board and dipped it in hot candle wax... I then took the board and mounted it back in its case and then shut the controller end plates and top with sillicone, it didnt nee...
by flez1966
Jun 10 2013 2:11am
Forum: Battery Technology
Topic: DIY Programmable BMS (now using ATtiny/Arduino)
Replies: 218
Views: 53716

Re: DIY Modular BMS

re the voltage difference jumper possibility, why a jumper, as you sayits large and costly also, just go for a pair of solder pads ppl can drop a blob of solder on... I just bought my first 4*4s packs, and i have one crappy b6, charging is a pain. I have spent a week trying out different designs in ...
by flez1966
Jun 05 2013 1:35pm
Forum: Battery Technology
Topic: Yet another BMS!
Replies: 27
Views: 8093

Re: Yet another BMS!

emm...

i need this for 16s...................
by flez1966
May 25 2013 3:12pm
Forum: Battery Technology
Topic: B6 Lipro balance charger. Smoked it...
Replies: 9
Views: 660

Re: B6 Lipro balance charger. Smoked it...

''I connected my 4s balance wires and the main +/- from the battery. Then gave the unit 12vdc (from the same 4s pack) and it powered up''

I think thats your problem, I think its created some form of loop
by flez1966
Dec 04 2012 4:22am
Forum: Large EV General Discussion
Topic: 20kw continuous motor enough for small 2000lb 40-45mph car ?
Replies: 62
Views: 13282

Re: 20kw continuous motor enough for small 2000lb 40-45mph c

that golden motor looks more like it would suit a motorcycle then a car.

if your looking to cars, I'd suggest a look at the youtube vids of 'marionrickard' aka evtv.me

he goes on an one and is a bit opinionated at times, but look at the kit he uses, it works.
by flez1966
Nov 30 2012 11:17am
Forum: E-Bike Technical
Topic: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller
Replies: 711
Views: 86866

Re: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller

emm, would like to do this mod, but to reduce current, and be switchable...

Say drop it down to like a 200w max setting to (a) preserve batteries (limp home mode) and (b) not get busted for greater than 250w lol
by flez1966
Nov 24 2012 6:14am
Forum: Food and Drink
Topic: Twinkys...
Replies: 80
Views: 10447

Re: Twinkys...

I dont know much about american, our unions are often after more money for employees and better conditions, at the cost of the profits, so yeah its all swings and roundabouts on both sides... wife is a non union worker now, last week they asked her to switch shift so she finished at 930pn and starte...
by flez1966
Nov 22 2012 2:05pm
Forum: Food and Drink
Topic: Twinkys...
Replies: 80
Views: 10447

Re: Twinkys...

didnt they take a 33% pay cut and then refused a further 12% this year, but offered to take an 8%, you cant blame the workforce/union so badly with figures like that, if what we hear on this side of the water is true#
by flez1966
Oct 09 2012 5:30am
Forum: E-Bike Technical
Topic: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller
Replies: 711
Views: 86866

Re: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller

I haven't open these controller. i bought the controller from Greentime, 18fets 4110, 60amps . I can trust 100% is very likely a geninue fets 4110 from greentime. They are own and tested by respected members methods, John in CR. my caps is likely to be 100v, but my request for this controller must ...
by flez1966
Oct 05 2012 4:48am
Forum: E-Bike Technical
Topic: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller
Replies: 711
Views: 86866

Re: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller

kentlim26 wrote:i really did that , Half eye closed..

Have you opened this controller and seen what part number is on the mosfets, and what voltage caps its fitted with?
by flez1966
Oct 04 2012 2:40pm
Forum: E-Bike Technical
Topic: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller
Replies: 711
Views: 86866

Re: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller

It doesn't use much, but will ruin your battery by draining it to 0V over time. Yes I think it will, but like i said, its so small it can hardly be measured, and it will add up say over a few weeks, I use mine almost daily and have had no problems, the wife uses hers daily in the week and often lea...
by flez1966
Oct 04 2012 4:13am
Forum: E-Bike Technical
Topic: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller
Replies: 711
Views: 86866

Re: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller

both mine are powered 24/7, and i just use the ignition wire.

do they drain the batter this way, yes, about like guessing 0.05% per night..... they only thing powered is the smoothing caps and the mosfets which leak so tiny amounts i cant measure it on my meter
by flez1966
Sep 30 2012 2:02pm
Forum: E-Bike Technical
Topic: Detecting counterfeit 4110 mosfets
Replies: 184
Views: 32985

Re: Detecting counterfeit 4110 mosfets

yeah I never thought of the tape, I have had it apart before use, I always expect QC to be non existent and so i strip everything i buy and bench test before use. I was 'happy' with the build on this, I just read about the bar issues and must say mine was sat nice to the case and had transfer goo to...
by flez1966
Sep 30 2012 12:36pm
Forum: E-Bike Technical
Topic: boleee controllers? (18fet model 18_02)
Replies: 13
Views: 1515

Re: boleee controllers? (18fet model 18_02)

I think most of these cheap controllers are the same with just little modifications to suit,

The one good side of that is what fixes one usually fixes another give or take
by flez1966
Sep 30 2012 12:33pm
Forum: E-Bike Technical
Topic: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller
Replies: 711
Views: 86866

Re: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller

Damn... When i found this thread I thought I had found the answers! my controller is a chip/pcb by bolee and then its populated with fets elsewhere and sold, seems to match 90% of whats in this thread but......... on the bench its running fine, take it out and after 10-15 seconds it trips out.. thi...
by flez1966
Sep 29 2012 12:51pm
Forum: E-Bike Technical
Topic: boleee controllers? (18fet model 18_02)
Replies: 13
Views: 1515

Re: boleee controllers? (18fet model 18_02)

"/hope this controller does not have a bad batch of fets...." for $35? no way! it has to be real IRFB4110s! at least you know the bike won't fall over with the 70lbs of SLA to hold it up. jeremy is really trying to help you. Your sarcasm is weak, you need practice... the controller is not built wit...
by flez1966
Sep 29 2012 10:22am
Forum: E-Bike Technical
Topic: Detecting counterfeit 4110 mosfets
Replies: 184
Views: 32985

Re: Detecting counterfeit 4110 mosfets

My controller just blew after <5 mins of use.... Fets have a lovely IR logo, date stamps, very very well printed, and the part number is FB4410 ..... http://imageshack.us/a/img850/8605/4410mosfet.jpg The case moulding is very like real ones.... Guess i need to find some 4110's and upgrade while i re...
by flez1966
Sep 29 2012 9:00am
Forum: E-Bike Technical
Topic: boleee controllers? (18fet model 18_02)
Replies: 13
Views: 1515

Re: boleee controllers? (18fet model 18_02)

Ok now the bad news lol Controller was still running fine on the bench and tripping out when ridden, I thought ''it must be voltage sag'' and that as i had to turn round to see the led flashing that i was mis-counting. I extended the led to the handle bars, I saw 3 flashes, 4 flashes, 7 flashes, no ...
by flez1966
Sep 29 2012 7:17am
Forum: E-Bike Technical
Topic: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller
Replies: 711
Views: 86866

Re: 72v 1500W 40A Hua Tong CA08 XM06AD_P04.1 controller

Damn... When i found this thread I thought I had found the answers! my controller is a chip/pcb by bolee and then its populated with fets elsewhere and sold, seems to match 90% of whats in this thread but......... on the bench its running fine, take it out and after 10-15 seconds it trips out.. this...
by flez1966
Sep 25 2012 3:30pm
Forum: E-Bike Technical
Topic: boleee controllers? (18fet model 18_02)
Replies: 13
Views: 1515

Re: boleee controllers? (18fet model 18_02)

I dont know what they charge for boards but this cost me $58 shipped to my door, I see where your going with the gate drive needing to be kept high enough to get good switching, I dont think I can get much out of whas in, I could double up on the final drive stages mind. its all a bit hypothetical a...
by flez1966
Sep 24 2012 12:27pm
Forum: E-Bike Technical
Topic: New Yescomusa 1000w 48v Not working. Need Help
Replies: 42
Views: 2809

Re: New Yescomusa 1000w 48v Not working. Need Help

put your dvm on 200v, dont worry lol

connect black lead to pack(-)/gnd.

switch everything one dont touch throttle and see if theres any voltage on the phase wires, post back etc