Search found 213 matches

by kcuf
May 07 2019 8:21am
Forum: EBike Technical
Topic: Bafang BBSHD Over Voltage Protection issue on 52v
Replies: 24
Views: 4342

Re: Bafang BBSHD Over Voltage Protection issue on 52v

someone consider offering

bbsxx controller rebuild service


gotta be many 02 03 cores

dead in the wild


bafang plays

controller games
by kcuf
May 06 2019 3:12pm
Forum: EBike Technical
Topic: Hall sensor died today
Replies: 3
Views: 359

Re: Hall sensor died today

phase wiring shorted

from controller

possibly blown fet
by kcuf
May 03 2019 2:48pm
Forum: EBike General Discussion
Topic: Battery Consumption
Replies: 24
Views: 2007

Re: Battery Consumption

22 miles on 840wh if thats what actually have seems about right to me obviously last portion lower voltage if capacity further degrades perhaps attempt balancing leave on charger several days disconnect and reconnect several times post final resting pack voltage amazon 28ah pack comes with bms life ...
by kcuf
May 03 2019 2:39pm
Forum: EBike Non-hub Motor Drives
Topic: BBS02B 750w mysterious problem
Replies: 11
Views: 707

Re: BBS02B 750w mysterious problem

if jumping correctly

no pas or throttle action

inclined towards duff controller

or perhaps internal wiring

check moisture ingress
by kcuf
May 01 2019 4:38pm
Forum: EBike General Discussion
Topic: First E-Bike - Doing DIY BBSHD - Critique my plan
Replies: 163
Views: 9999

Re: First E-Bike - Doing DIY BBSHD - Critique my plan

3 dollar chain wear gauge replace 10 15 dollar chain any measurable wear sprockets will last very long time my chain interval about 1000 miles large hubs using bicycle rims will not lace strong durable wheels even best spokes and lace job eventually fail heavy commuter experience something gotta giv...
by kcuf
May 01 2019 12:52pm
Forum: EBike Non-hub Motor Drives
Topic: BBS02B 750w mysterious problem
Replies: 11
Views: 707

Re: BBS02B 750w mysterious problem

recheck all connections


correctly bypass display

jumpstart motor controller

works under throttle

or top pas level

may help

rule in out display


test health of battery pack

not only voltage

current under load
by kcuf
May 01 2019 12:42pm
Forum: EBike General Discussion
Topic: First E-Bike - Doing DIY BBSHD - Critique my plan
Replies: 163
Views: 9999

Re: First E-Bike - Doing DIY BBSHD - Critique my plan

10000 miles cute

nothing wrong learning from others

however doing final proof



bbshd do not shred hardtails in six months

utter nonsense

apparently offered by think not facts



good luck op
by kcuf
May 01 2019 9:06am
Forum: EBike General Discussion
Topic: First E-Bike - Doing DIY BBSHD - Critique my plan
Replies: 163
Views: 9999

Re: First E-Bike - Doing DIY BBSHD - Critique my plan

some only think

others actually do

the later know
by kcuf
Apr 30 2019 1:05pm
Forum: EBike General Discussion
Topic: First E-Bike - Doing DIY BBSHD - Critique my plan
Replies: 163
Views: 9999

Re: First E-Bike - Doing DIY BBSHD - Critique my plan

extensively used every extreme

span quality full - rigid

low pressure fat tire favorite

roughly 25mph performance envelope

all terrain performance

good comfort less complicated

excellent choice for bbshd
by kcuf
Apr 24 2019 12:15pm
Forum: EBike General Discussion
Topic: Um... how do you handle all the handlbar mounted accessories?
Replies: 16
Views: 926

Re: Um... how do you handle all the handlbar mounted accessories?

butterfly bars

flex but i want that

lotsa room for attachments
by kcuf
Apr 24 2019 12:12pm
Forum: EBike Technical
Topic: EBikeling 48v 1200w Rear Direct Drive Hub questions
Replies: 14
Views: 2751

Re: EBikeling 48v 1200w Rear Direct Drive Hub questions

don't thank me

responding to op

but yeah eyes of beholder

no color splash screen

horizontal only

but it works and works

keeps delivering for

many systems similar to op and beyond
by kcuf
Apr 24 2019 8:02am
Forum: EBike Technical
Topic: EBikeling 48v 1200w Rear Direct Drive Hub questions
Replies: 14
Views: 2751

Re: EBikeling 48v 1200w Rear Direct Drive Hub questions

use cycle analyst ca

china displays fw weird

ca configures

manage everything to ride
by kcuf
Apr 14 2019 8:38am
Forum: EBike General Discussion
Topic: BMS defect or unbalanced cells
Replies: 27
Views: 2083

Re: BMS defect or unbalanced cells

charge each parallel group

as single lipo cell to 4.20v
by kcuf
Apr 11 2019 5:28pm
Forum: EBike Technical
Topic: Issues with BBS02
Replies: 19
Views: 917

Re: Issues with BBS02

bbs01 02 began 250w 350w 02 rating magically grew to 500w 750w 900w 1200w peaks reality 500w 600w continuous cool temps hand or temp sensor will not react quickly enough be mindful continuous power can be very dependable sans water of course front tire will spray water directly inside older 02 throu...
by kcuf
Apr 08 2019 11:24am
Forum: EBike General Discussion
Topic: Ebike riding tips
Replies: 15
Views: 1148

Re: Ebike riding tips

riding too fast eventually suffers

slowing down rarely does

look but never stare fixate

constantly scan using all senses

be aware of everything

assume worst

plan for best

ride long and prosper
by kcuf
Apr 07 2019 1:08am
Forum: EBike General Discussion
Topic: Looking for 250W option
Replies: 49
Views: 2764

Re: Looking for 250W option

mid drive for this job
by kcuf
Apr 07 2019 1:03am
Forum: EBike Technical
Topic: What wire gauge for 24V batt to ctlr EVG ebike?
Replies: 5
Views: 290

Re: What wire gauge for 24V batt to ctlr EVG ebike?

12ga should be fine

for that application
by kcuf
Apr 03 2019 7:37am
Forum: EBike Technical
Topic: Not getting maximum wattage?
Replies: 4
Views: 390

Re: Not getting maximum wattage?

man above spot on

applied things in ev world

learn important concepts

peak average nominal

voltage always changing

under various loads

similar variation power usage

enjoy
by kcuf
Apr 02 2019 1:22pm
Forum: Battery Technology
Topic: Shorted cells condition
Replies: 6
Views: 569

Re: Shorted cells condition

consider em battle tested
by kcuf
Mar 30 2019 8:26am
Forum: EBike Build Threads
Topic: BBS02 hill climber commuter
Replies: 12
Views: 2028

Re: BBS02 hill climber commuter

no blogs no posts owned 4qty bbs02 burned couple controllers like you thot all good best understand duty cycles surviving 850w continuous depends on several factors ambient temp rpm load 600 700w will likely climb most anything slowly using low enough gearing bbshd survives 1000w continuous although...
by kcuf
Mar 29 2019 11:39pm
Forum: EBike Build Threads
Topic: BBS02 hill climber commuter
Replies: 12
Views: 2028

Re: BBS02 hill climber commuter

1200w yes short term

it is a 600 700w continuous system

understand continuous vs peak

temp sensor wont react quickly enough

good luck
by kcuf
Mar 29 2019 10:44am
Forum: EBike Build Threads
Topic: BBS02 hill climber commuter
Replies: 12
Views: 2028

Re: BBS02 hill climber commuter

nice job

fyi

bbs02 is not 1000w system

for cool temp days

600 700w continuous max

will survive brief 1000w bursts

enjoy
by kcuf
Mar 20 2019 10:12am
Forum: EBike General Discussion
Topic: Middrive Chain popping
Replies: 25
Views: 1083

Re: Middrive Chain popping

even with superhuman power levels

sprockets dont wear much

using good fresh chain

using worn stretched chain

sprockets turn to shit

quickly
by kcuf
Mar 20 2019 10:05am
Forum: EBike General Discussion
Topic: First build, heavy rider, thinking BBSHD, seeking some advice/input
Replies: 10
Views: 873

Re: First build, heavy rider, thinking BBSHD, seeking some advice/input

depending on programming lower pas levels limit peak power levels display with power meter can help visually depends on bike in general much smaller than 40t little if any offset results poor chain line important thing regarding 1000 1500w pulling chain never run worn chain any signs of chain wear s...
by kcuf
Mar 19 2019 2:07pm
Forum: Battery Technology
Topic: How does a BMS work
Replies: 15
Views: 2720

Re: How does a BMS work

isolate grounds duh