Search found 15 matches

by CanadianKid
Oct 23 2019 8:30am
Forum: E-Bike Technical
Topic: Hub motor re-wire in 10 GA
Replies: 4
Views: 567

Hub motor re-wire in 10 GA

Hello im looking for the thinnest insulation for hub motor phase wires. I have 10 GA silicon insulated wire but they drag along the shaft and i cant seem to fit 3x. Whats the type of wire/insulation they normally use in BLDC. Couldnt find it anywhere. Thanks in advance
by CanadianKid
Oct 11 2019 5:58pm
Forum: E-Bike General Discussion
Topic: What could be the cause of a tripping bms
Replies: 17
Views: 668

Re: What could be the cause of a tripping bms

First wild guess - somebody fed the BMS some really good LSD? Second wild guess - you live in Canada, and the battery was stored in extreme cold? As repeatedly stated, those extremely low cells constitute a severe risk and should be replaced. That vehicle should not be anywhere within 50 feet of fl...
by CanadianKid
Oct 10 2019 9:47pm
Forum: E-Bike General Discussion
Topic: What could be the cause of a tripping bms
Replies: 17
Views: 668

Re: What could be the cause of a tripping bms

As stated above, sounds like you have damaged cells that sag under load, causing a LVC condition. Also as stated, they are a fire hazard. Somehow you abused your battery and now it has problems. You could replace the cells that went under 2.75v or better yet, get a new battery and retire the damage...
by CanadianKid
Oct 10 2019 7:07pm
Forum: E-Bike General Discussion
Topic: What could be the cause of a tripping bms
Replies: 17
Views: 668

Re: What could be the cause of a tripping bms

What would be the best course of action here , Monitor voltage of cells or check for bms integrity .. Pack is 20s 35AH i just cant trash it
by CanadianKid
Oct 10 2019 7:05pm
Forum: E-Bike General Discussion
Topic: What could be the cause of a tripping bms
Replies: 17
Views: 668

Re: What could be the cause of a tripping bms

Well, it could mean that as well but in this context it means that it can't deliver it's rated current anymore, because there's too much resistance through the cell. It's a sign of physical damage to the internal components of the cell. Resistance also means heat, so attempting to pull high current...
by CanadianKid
Oct 10 2019 6:59pm
Forum: E-Bike General Discussion
Topic: What could be the cause of a tripping bms
Replies: 17
Views: 668

Re: What could be the cause of a tripping bms

It's also possible that one of the cell groups that went dead is actually toast. It might be able to hold full voltage when you charge it but it sags below LVC under load due to high internal resistance. Would bypassing the bms for discharge fix this problem or i should remove the toasted serie to ...
by CanadianKid
Oct 10 2019 6:56pm
Forum: E-Bike General Discussion
Topic: What could be the cause of a tripping bms
Replies: 17
Views: 668

Re: What could be the cause of a tripping bms

dustNbone wrote:
Oct 10 2019 6:54pm
It's also possible that one of the cell groups that went dead is actually toast. It might be able to hold full voltage when you charge it but it sags below LVC under load due to high internal resistance.
High internal resistance means longer to charge ?
by CanadianKid
Oct 10 2019 6:55pm
Forum: E-Bike General Discussion
Topic: What could be the cause of a tripping bms
Replies: 17
Views: 668

Re: What could be the cause of a tripping bms

Sounds like the BMS is hitting it's current limit, or at least what it thinks is it's current limit. What's it supposed to be rated for? It's possible that it has multiple current sensing shunts and one (or more) of them has a bad connection to the PCB, which would cause the overcurrent to be tripp...
by CanadianKid
Oct 10 2019 6:54pm
Forum: E-Bike General Discussion
Topic: What could be the cause of a tripping bms
Replies: 17
Views: 668

Re: What could be the cause of a tripping bms

its supossed to be a 25-50 but had the same bms before changing it and never had a problem tripping under load
by CanadianKid
Oct 10 2019 6:52pm
Forum: E-Bike General Discussion
Topic: What could be the cause of a tripping bms
Replies: 17
Views: 668

Re: What could be the cause of a tripping bms

pack is new bought it last year and during storage the cels sagged to said voltage. About 20 full cycle MAX
by CanadianKid
Oct 10 2019 6:46pm
Forum: E-Bike General Discussion
Topic: What could be the cause of a tripping bms
Replies: 17
Views: 668

What could be the cause of a tripping bms

Recently individually charged my 20s12p pack with a ISDT q6 to SoC 100% c1 4.19 2=4.19 3=4.20 4=4.21 5=4.19 6=4.20 7=4.19 8=4.20 9=4.22 10=4.19 11=4.20 12=4.19 13=4.18 14=4.21 15=4.22 16=4.23 17=4.23 18=4.25 19=4.22 20=4.19 The bms trips everytime i put high load over 35AMPS PS. Cell*6 was at 0.31v ...
by CanadianKid
Oct 08 2019 5:21pm
Forum: E-Bike General Discussion
Topic: BMS defect or unbalanced cells
Replies: 27
Views: 1769

Re: BMS defect or unbalanced cells

thanks i kinda figurred it out myself monitoring the bms it cut starta bleeding at 4.20 volt and at 4.25 volt it trips the bms overvltage protection.. Im charging every cells with my isdt q6 trough the balance leads.. 40 ah 20 s.... lol pretty long
by CanadianKid
Oct 07 2019 9:37pm
Forum: E-Bike General Discussion
Topic: BMS defect or unbalanced cells
Replies: 27
Views: 1769

Re: BMS defect or unbalanced cells

if my cells are unbalanced and i just plug my bulk charger when certain group of cells reach 4.20 volt will it damage them to let the charger charge the other group of unbalanced cells ? or should i let it charge until all groups are at 4.2 volt ..?
by CanadianKid
Sep 10 2019 3:01pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Problem with throttle input signal
Replies: 2
Views: 385

Problem with throttle input signal

Came across a problem recently and cant seem to fix it. ordered 2 of these chinese controller and both have 5volt signal and 5volt input on the throttle plug. Motor runs fin in self learning but any attempt to connect a trottle is not working any help? Is there some kind of controller that works dif...