Search found 213 matches

by kcuf
Aug 15 2019 11:28am
Forum: General Discussion
Topic: How to identify antennas?
Replies: 25
Views: 1982

Re: How to identify antennas?

don't talk to devices

put em where they do the most good
by kcuf
Aug 15 2019 8:34am
Forum: General Discussion
Topic: How to identify antennas?
Replies: 25
Views: 1982

Re: How to identify antennas?

best antenna is elevation
by kcuf
Aug 15 2019 8:27am
Forum: Battery Technology
Topic: Building a LiPo pack with high discharge (burst 300A) and BMS
Replies: 19
Views: 1148

Re: Building a LiPo pack with high discharge (burst 300A) and BMS

double or more any c rate spec

consider bms for charge only

discharge directly from cell tabs

regularly monitored for balance and ir
by kcuf
Aug 12 2019 7:06am
Forum: EBike Non-hub Motor Drives
Topic: BBSHD dies after 10 seconds, again and again.
Replies: 8
Views: 645

Re: BBSHD dies after 10 seconds, again and again.

no sensor

sleep settings

influence off time
by kcuf
Aug 12 2019 7:02am
Forum: EBike Technical
Topic: Q128C motor teardown reviews new version corrected clutch spring issue.
Replies: 5
Views: 420

Re: Q128C clutch is starting to slip.

majority instances

clutch action can be improved

springs die become mangled

no longer

push rollers

into ramp

check replace

use generic springs
by kcuf
Jul 22 2019 11:26am
Forum: EBike General Discussion
Topic: I saw a park ranger call out an e-bike rider on FL bike path.......
Replies: 41
Views: 2119

Re: I saw a park ranger call out an e-bike rider on FL bike path.......

throttle ban ignorant


reasonable laws

brake cutoffs

lighting if night

ride safely
by kcuf
Jul 22 2019 11:17am
Forum: EBike Non-hub Motor Drives
Topic: Converting B'twin Bike to Electric
Replies: 65
Views: 6344

Re: Converting B'twin Bike to Electric

understand nominal voltage rating battery voltages perform across wide voltage range 72v lithium pack envelope usually between 60-84v almost 25v difference full to empty soc next thesis understand voltage changes under load vs open circuit ohms law is your friend that platform front geared hub good ...
by kcuf
Jul 13 2019 8:37am
Forum: Battery Technology
Topic: voltage drop under load (maybe a simple question?)
Replies: 28
Views: 1698

Re: voltage drop under load (maybe a simple question?)

54.6v is 48v 13s top charge

if measurements correct

pack is not fully charging
by kcuf
Jul 11 2019 8:59am
Forum: Motor Technology
Topic: Measure RPM with video camera
Replies: 6
Views: 1198

Re: Measure RPM with video camera

many phone apps

strobe measurement
by kcuf
Jul 11 2019 8:56am
Forum: EBike Non-hub Motor Drives
Topic: Should a 8S cassete be a good option for e-bikes?
Replies: 20
Views: 1802

Re: Should a 8S cassete be a good option for e-bikes?

chain wear gauge

used regularly

any sign wear

replace chain

cogs last much longer




replacement interval

cheap 6-8 speed stuff

about 1000 mile

2 months my commute
by kcuf
Jul 10 2019 9:23pm
Forum: Items for Sale - New
Topic: Frame for sale SEKIBIKES Frame 2017
Replies: 85
Views: 5018

Re: Electric Fat Bike from SEKIBIKES.COM

forum rules

require price

for sale items
by kcuf
Jun 29 2019 6:59pm
Forum: Motor Technology
Topic: Bafang BBS01 Error 30 -> Controller broken?
Replies: 3
Views: 723

Re: Bafang BBS01 Error 30 -> Controller broken?

on good day

bbs02 barely tolerates

750w continuous

more like 600-700w

especially hot days


many programmings

full throttle or high PAS

exceed 1000w


major difference between

peak and continuous wattage



limiting average power prevents

damage to controller
by kcuf
Jun 28 2019 5:19pm
Forum: General Discussion
Topic: Bike shops..
Replies: 16
Views: 1388

Re: Bike shops..

unsupportive shops exist

thankfully fewer every year

their loss ebikes gain
by kcuf
Jun 28 2019 5:16pm
Forum: EBike General Discussion
Topic: How to convert anderson plugs to Higo plugs?
Replies: 10
Views: 991

Re: How to convert anderson plugs to Higo plugs?

crimp strands with insulation If you crimp with insulation inside the crimp, it doesn't compress all the metal to make it a single piece (cold weld). So the contact may not be as good, and can allow moisture into the crimp (whcih can corrode it over time), and the wire can also pull back out of the...
by kcuf
Jun 26 2019 9:22pm
Forum: EBike General Discussion
Topic: How to convert anderson plugs to Higo plugs?
Replies: 10
Views: 991

Re: How to convert anderson plugs to Higo plugs?

crimping app

to small ga wire

strip amount insulation

fold strands covering insulation

crimp strands with insulation

nice strain relief
by kcuf
Jun 26 2019 9:17pm
Forum: EBike General Discussion
Topic: Cant decide on 36v or 48v mid drive motor
Replies: 10
Views: 890

Re: Cant decide on 36v or 48v mid drive motor

bbsxx originally 24-36v

do not believe bafang

modified internal gearing

for 48v


if you actually pedal

48v may seem too fast

using full voltage rpm

for any meaningful leg input


something to consider

but 52 is my choice
by kcuf
Jun 21 2019 1:35pm
Forum: EBike Technical
Topic: Help Please on 10s bms install on 10s2p pack
Replies: 12
Views: 668

Re: Help Please on 10s bms install on 10s2p pack

p means parallel

tops and bottoms connected

essentially becomes larger single cell
by kcuf
Jun 18 2019 12:05pm
Forum: EBike General Discussion
Topic: New York to legalize ebikes?
Replies: 11
Views: 1097

Re: New York to legalize ebikes?

have been thrust into deliveries

large fleet running around manhattan

lwb cargo bikes

bbshd

some pulling trailers too


perhaps illegal

but cops like ebikes

more than cars trucks


politicians wanna figure out

how to get paid


always vote out incumbents

and elected judges
by kcuf
Jun 06 2019 3:17pm
Forum: EBike Build Threads
Topic: Best Starter Frame for Bafand BBSHD
Replies: 10
Views: 1216

Re: Best Starter Frame for Bafand BBSHD

not only cost complexity

9th ave around 50’s

fat tires definitely soften

so called bike lane
by kcuf
Jun 06 2019 10:48am
Forum: EBike General Discussion
Topic: EM3ev, setting the record straight on a few things
Replies: 89
Views: 15317

Re: EM3ev, setting the record straight on a few things

hard to suggest vendor

no idea what continent
by kcuf
Jun 06 2019 10:44am
Forum: EBike Build Threads
Topic: Best Starter Frame for Bafand BBSHD
Replies: 10
Views: 1216

Re: Best Starter Frame for Bafand BBSHD

fat tire bbshd

excellent combo

nyc roads rough

all terrain nice air ride

compared quality full suspension

less cost and complexity
by kcuf
May 29 2019 12:40pm
Forum: EBike Non-hub Motor Drives
Topic: BBSHD with no SPEED sensor?
Replies: 5
Views: 592

Re: BBSHD with no SPEED sensor?

commercial cargo bikes

running around nyc

bbshd

haul large battery too

excellent combination
by kcuf
May 15 2019 5:40am
Forum: Battery Technology
Topic: Silent and compact charger for 14S battery / 10-15A
Replies: 10
Views: 755

Re: Silent and compact charger for 14S battery / 10-15A

they can parallel fine

frequently do similar


minor nit picking

any open connection

may reduce charge current