Search found 15 matches

by gorndog
Jul 05 2017 5:08am
Forum: Battery Technology
Topic: 3 balance leads on 10s battery. Is this going to blow up?
Replies: 4
Views: 357

Re: 3 balance leads on 10s battery. Is this going to blow up

Looks to me like it's just a pack level LVC and possibly thermal protection board. I'm guessing the small wires are for one or more thermistors. It won't protect the cells from going out of balance, but it will protect them from overdischarge if they''re reasonably in balance. Thanks for this. I'll...
by gorndog
Jul 04 2017 7:37pm
Forum: Battery Technology
Topic: 3 balance leads on 10s battery. Is this going to blow up?
Replies: 4
Views: 357

3 balance leads on 10s battery. Is this going to blow up?

Taking apart a electric skateboard battery has revealed something strange. It's a 10s1p 36v lipo battery but check out the BMS. Bare in mind this battery must been outputting 40-60amps because it took me up to 43km/h on the board. Stock. Straight out of the box. On flat ground. MAD! I have 6 of thes...
by gorndog
Apr 24 2015 7:34am
Forum: E-Bike Non-hub Motor Drives
Topic: bbs02 chain slipping. 8 speed?
Replies: 15
Views: 10288

Re: bbs02 chain slipping. 8 speed?

I had the same chain line issues which I fixed by simply flipping the front 48t sprocket around. Totally fixed the issue of alignment for me.
by gorndog
Apr 21 2015 6:47am
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang BBSxx - fault finding and fixes
Replies: 1040
Views: 161348

Re: Bafang BBSxx - fault finding and fixes

I know this is slightly off topic, but I've searched everywhere and can't find the relevant info.

Who is the supplier currently making Bafang BBS-02 wiring looms for the CA? I'm hoping to get rid of my LCD and replace it with a CA. (in which case I'm happy to sell it on)
by gorndog
Apr 05 2015 5:31pm
Forum: E-Bike General Discussion
Topic: Caterham Ebikes
Replies: 29
Views: 2137

Caterham use Bafang BBS-0x in their e-bikes

Just came across a you tube video showing Caterham (the car company for the non-petrol heads) doing their own e-bikes, seemingly the fashionable thing to do for car companies these days. Turns out they are using the bafang mid-drive system. Well if it's good enough for Caterham... https://www.youtub...
by gorndog
Sep 23 2014 9:02pm
Forum: E-Bike Technical
Topic: Pump Shaped Controller - Anyone tested one?
Replies: 6
Views: 435

Pump Shaped Controller - Anyone tested one?

Found this on Aliexpress this evening and wondering if anyone has seen one in action. Looks relatively feeble but could function well as an ultra-light and cheap limp-mode controller if all else fails. "Parameter settings can be modified through USB interface with the computer,or through KM5S displa...
by gorndog
Sep 21 2014 4:55am
Forum: E-Bike General Discussion
Topic: em3ev - controller needs to be changed or re-programmed?
Replies: 8
Views: 887

Re: em3ev - controller needs to be changed or re-programmed?

My controller was one of the ones from that batch that did blow. It blew within an hour. i'm now about to receive my 3rd warranty controller, @ $100 inc. shipping a pop this is not trivial level of service he is offering. After this experience, he's my go-to ebike parts guy. It's not hard to remove ...
by gorndog
Sep 16 2014 5:48pm
Forum: E-Bike Technical
Topic: BBS02 750W controller dead
Replies: 75
Views: 9912

Re: BBS02 750W controller dead

I haven't reprogrammed my controllers yet. I will get to that soon. I have the display extension cable and USB serial hardware ready to go. I'll do a repair on both and test some new settings when I get the time. I got a load of mosfets from here. http://www.rapidonline.com/electronic-components/p75...
by gorndog
Sep 16 2014 9:10am
Forum: E-Bike Technical
Topic: BBS02 750W controller dead
Replies: 75
Views: 9912

Re: BBS02 750W controller dead

[quote="neptronix"]2 controllers dead? was one of them a 9fet? both? Yes, both 9 FET. I also repaired the 1st 9FET and it blew again too after about 5 mins. I want to love this BBS system, I really do, but getting really frustrated with the amount of time and money I'm having to put into it. I was t...
by gorndog
Sep 15 2014 10:48am
Forum: E-Bike Technical
Topic: BBS02 750W controller dead
Replies: 75
Views: 9912

Re: BBS02 750W controller dead

I've had 2 controllers blown on me already. The second was a warranty replacement from EV3MV. I thought I'd give the repair a go myself and it's worked! Total time was about 1.5 hours. I ripped out the putting compound with a screw driver. It takes about 20 mins to get it all out. You have to be car...
by gorndog
Sep 06 2014 3:22pm
Forum: E-Bike Technical
Topic: BBS02 750W controller dead
Replies: 75
Views: 9912

Re: BBS02 750W controller dead

Yea I will order some UP, and reprogram. Paul at EM3EV was kind enough to throw in a LCD extender cable when we sent the replacement controller. I have the USB serial hardware and just need to slice this cable up, wire it to the USB serial and then I can programme the controller.
by gorndog
Sep 06 2014 2:54pm
Forum: E-Bike Technical
Topic: BBS02 750W controller dead
Replies: 75
Views: 9912

Re: BBS02 750W controller dead

Really appreciate this ac246. I've now had 2 controllers blow on me, both within the first 10 miles. The replacement one from EM3EV just blew a hour ago after 4 miles. I also think that my throttle is faulty - this seems to be a common issue. The bike was running fine in PAS mode so I didn't both to...
by gorndog
Aug 28 2014 6:42pm
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang BBSxx - fault finding and fixes
Replies: 1040
Views: 161348

Re: Bafang BBSxx - fault finding and fixes

I too having the tiny click-no power when throttle depressed issue too. I had done only 20 miles (10 miles on load - the rest done free air) when this occurred. Purhcased from Paul- EM3EV. Throttle doesn't work PAS doesn't work Display shows no errors Slight click when throttled depressed. I don't ...
by gorndog
Aug 17 2014 2:54pm
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang BBSxx - fault finding and fixes
Replies: 1040
Views: 161348

Re: Bafang BBSxx - fault finding and fixes

I too having the tiny click-no power when throttle depressed issue too. I had done only 20 miles (10 miles on load - the rest done free air) when this occurred. Purhcased from Paul- EM3EV. Throttle doesn't work PAS doesn't work Display shows no errors Slight click when throttled depressed. I don't h...
by gorndog
Jan 15 2014 9:11pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Avanti D8 + Cromotor + Adaptto MAX-E controller
Replies: 129
Views: 32785

Re: Avanti D8 + Cromotor + Adaptto MAX-E controller

im still in the testing stages but i gotta say so far im really impressed with my max-e. very ,very slick piece of gear! love all the handy features it has like programmable dcdc output, throttle limits graph screen, quick,easy toggle between modes for cop evaision,charge mode using any psu and jus...