Search found 213 matches

by kcuf
Oct 15 2020 6:59pm
Forum: EBike General Discussion
Topic: Off Road Battery Case what do you use?
Replies: 7
Views: 293

Re: Off Road Battery Case what do you use?

shark can work well off road adding luggage straps

lash-tighten securely to frame

bottle mount bolts used for locating only


battery secured properly inside

triangle bag can be good


backpack tether useful configuration too

altho places battery weight higher

and might suck crashing
by kcuf
Sep 29 2020 5:01pm
Forum: E-Vehicles General Discussion
Topic: ES member "Farfle", RIP at 27
Replies: 8
Views: 1641

Re: ES member "Farfle", RIP at 27

had pleasure of meeting Jackson

brilliant mind and humble heart

will be greatly missed
by kcuf
Sep 12 2020 2:21pm
Forum: EBike Technical
Topic: My new 48v 30AH Chamrider Battery is shutting off at 50v
Replies: 28
Views: 925

Re: My new 48v 30AH Chamrider Battery is shutting off at 50v

"4. What shouldn't I touch? I don't want to get shocked by 40amps"

no offense

need book learning

basic electricity
by kcuf
Sep 11 2020 4:18pm
Forum: EBike Technical
Topic: My new 48v 30AH Chamrider Battery is shutting off at 50v
Replies: 28
Views: 925

Re: My new 48v 30AH Chamrider Battery is shutting off at 50v

not sure how display acquires batt % normal 48v system lvc occurs 42-44v bms balance bleed off function perhaps following bms equilibrium function some chargers won’t resume bulk charging badly out of balance packs can take several days achieve equilibrium leave charger plugged in for several days n...
by kcuf
Sep 07 2020 11:12am
Forum: Battery Technology
Topic: Anderson plug irritation
Replies: 6
Views: 363

Re: Anderson plug irritation

step 1

check for straight tangs

even slight bend downward

this insures solid click over retainer

step 2

avoid current overload

step 3

see step 1
by kcuf
Aug 18 2020 5:29pm
Forum: EBike General Discussion
Topic: bbs02 - what size chainring for my commuter?
Replies: 54
Views: 2594

Re: bbs02 - what size chainring for my commuter?

smaller chainring always better bbsxx until chain line becomes too severe 42t and up chainrings usually clear housing moves chain more inward and helps reach bigger rear cogs 20-25mph is comfy zone for bbsxx my front 42t rear 36t bbshd climbs until loses traction also use short crank arms nice when ...
by kcuf
Aug 18 2020 5:11pm
Forum: EBike Technical
Topic: BBS01B not working - help
Replies: 8
Views: 245

Re: BBS01B not working - help

internet search

"dump bafang display"

all bbsxx users

should carry simple jumper

know how to use it
by kcuf
Aug 01 2020 4:52pm
Forum: EVents
Topic: Midnight Ride Central Park Drive NYC Saturdays
Replies: 8
Views: 988

Re: Midnight Ride Central Park Drive NYC Saturdays

stopped by cops

years ago riding central park

they told me closed after midnight
by kcuf
Jul 18 2020 3:36pm
Forum: Battery Technology
Topic: Most foolproof chemistry for cold weather use?
Replies: 24
Views: 676

Re: Most foolproof chemistry for cold weather use?

short range under brutal cold

si02 may be worth consideration

comparable bulk weight to pb

however much higher charge rate

plus excellent cold temp performance

non-balance as well

extremely stable safe long lasting
by kcuf
Apr 29 2020 6:27pm
Forum: EBike General Discussion
Topic: How to charge electric vehicle batteries..
Replies: 1
Views: 172

Re: How to charge electric vehicle batteries..

67.2v full 100% soc 4.2v/cell

66v would be around 4.1v/cell

use ps or 16s li-ion charger
by kcuf
Apr 28 2020 7:13pm
Forum: EBike Non-hub Motor Drives
Topic: BBSHD Wiring
Replies: 2
Views: 318

Re: BBSHD Wiring

about to fall off page

unfortunately i don’t know for certain

display/speed data perhaps?

bump
by kcuf
Apr 27 2020 5:26pm
Forum: Battery Technology
Topic: How long is it safe to use an ebike battery?
Replies: 21
Views: 962

Re: How long is it safe to use an ebike battery?

yes open up

note cell group voltages

apply load doing same


i never regret buying

small rc charger

numerous uses

goto device for this situation

qualify and manually balance parallel groups


bleed balance pack bms very flaky

less than ideal balancing under perfect conditions
by kcuf
Apr 27 2020 2:59pm
Forum: Battery Technology
Topic: How long is it safe to use an ebike battery?
Replies: 21
Views: 962

Re: How long is it safe to use an ebike battery?

likely out of balance more than suspected

get balance right

load + capacity test

29e relatively calm cell

keep an eye on

use if useful
by kcuf
Apr 26 2020 11:18am
Forum: EBike Technical
Topic: Does acceleration affect range?
Replies: 14
Views: 563

Re: Does acceleration affect range?

in many instances

wind speed and hills

far more penalty

than acceleration
by kcuf
Apr 23 2020 6:12pm
Forum: Battery Technology
Topic: Luna Charger dead after 10 uses.
Replies: 28
Views: 1251

Re: Luna Charger dead after 10 uses.

over many years

6qty 300w chargers from many sources

currently no working alloy chargers

ironically several cheap kit plastics still working

instead 300w alloy better off meanwell cv cc led supply

or pay up for satiator
by kcuf
Apr 17 2020 3:56pm
Forum: EBike Technical
Topic: How do I connect these? Bullet connectors one end, bare wire other end
Replies: 3
Views: 271

Re: How do I connect these? Bullet connectors one end, bare wire other end

depends if need to disconnect if no disconnect use quality splice if yes look here https://www.ebikes.ca/shop/electric-bicycle-parts/connectors.html can use automotive bullets to match current connector although many would not recommend i would use anderson power pole too bad this thread directs to ...
by kcuf
Feb 12 2020 7:24pm
Forum: EBike General Discussion
Topic: Desperate: Error 30H - Replaced all but the motor!
Replies: 30
Views: 5026

Re: Desperate: Error 30H - Replaced all but the motor!

haven't noticed v adjust relationship to pw

talking advance setting pw yes ?

forget default perhaps 1919 ?
by kcuf
Feb 09 2020 8:25am
Forum: EBike General Discussion
Topic: Desperate: Error 30H - Replaced all but the motor!
Replies: 30
Views: 5026

Re: Desperate: Error 30H - Replaced all but the motor!

voltage adjust message dpc14

often seen using 52v battery

not sure what why

no harm for years here
by kcuf
Feb 07 2020 3:03pm
Forum: EBike General Discussion
Topic: Fat Bike vs (Hardtail)-MTB
Replies: 7
Views: 757

Re: Fat Bike vs (Hardtail)-MTB

ride commute both


fat simpler yet comfy

fewer tire choices

still my fav choice


proper oil air sus costs money

altho normal tires fit bus racks

better landing jumps

but fewer choices mounting batteries

or luggage racks
by kcuf
Feb 06 2020 10:22am
Forum: General Discussion
Topic: What's with this censoring nonsense happening on the forum?
Replies: 151
Views: 15047

Re: What's with this censoring nonsense happening on the forum?

don't care

merely observation

hope you find peace
by kcuf
Feb 03 2020 7:31pm
Forum: Battery Technology
Topic: Lifepo4 prismatic cut off voltage question
Replies: 13
Views: 608

Re: Lifepo4 prismatic cut off voltage question

lifepo4 discharge nonlinear

majority around 3.3v

when close to empty

acts like cliff

3v oddv conservative yet safe
by kcuf
Feb 02 2020 12:36pm
Forum: General Discussion
Topic: What's with this censoring nonsense happening on the forum?
Replies: 151
Views: 15047

Re: What's with this censoring nonsense happening on the forum?

your country certainly needs

physical and mental health care
by kcuf
Jan 23 2020 10:37am
Forum: EBike General Discussion
Topic: Charge bike with gasoline generator While driving?
Replies: 20
Views: 1481

Re: Charge bike with gasoline generator While driving?

can make sense for bivouacs

add batteries

trailer 30-50lb inverter genset

add more batteries

size charger near max genset output

ample fuel supply

enjoy electric camping
by kcuf
Jan 06 2020 10:08am
Forum: EBike Technical
Topic: Doesn't make sense.. does my battery broken?33mΩ too much ir??
Replies: 23
Views: 1417

Re: Doesn't make sense.. does my battery broken?33mΩ too much ir??

5 bricks #1 cell reading high ir

correct?

suspect more likely imax problem

recommend dc ir test

10s known amp load

use voltage drop to calculate ir

youtube lipo ir testing