Search found 179 matches

by kcuf
Apr 29 2020 6:27pm
Forum: E-Bike General Discussion
Topic: How to charge electric vehicle batteries..
Replies: 1
Views: 129

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: E-Bike Non-hub Motor Drives
Topic: BBSHD Wiring
Replies: 2
Views: 204

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: 725

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: 725

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: E-Bike Technical
Topic: Does acceleration affect range?
Replies: 14
Views: 411

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: 25
Views: 631

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: E-Bike Technical
Topic: How do I connect these? Bullet connectors one end, bare wire other end
Replies: 3
Views: 161

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: E-Bike General Discussion
Topic: Desperate: Error 30H - Replaced all but the motor!
Replies: 24
Views: 2102

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: E-Bike General Discussion
Topic: Desperate: Error 30H - Replaced all but the motor!
Replies: 24
Views: 2102

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: E-Bike General Discussion
Topic: Fat Bike vs (Hardtail)-MTB
Replies: 7
Views: 664

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: 14043

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: 471

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: 14043

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: E-Bike General Discussion
Topic: Charge bike with gasoline generator While driving?
Replies: 20
Views: 1309

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: E-Bike Technical
Topic: Doesn't make sense.. does my battery broken?33mΩ too much ir??
Replies: 23
Views: 1313

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
by kcuf
Jan 06 2020 10:02am
Forum: E-Bike Technical
Topic: Push Button Throttle
Replies: 19
Views: 701

Re: Push Button Throttle

in most cases

feed throttle switched 4.5vdc

higher than that might not work

may interpret full 5vdc as error

disables controller
by kcuf
Dec 24 2019 1:07pm
Forum: E-Bike General Discussion
Topic: Chain break blues...drivetrain upgrade options?
Replies: 15
Views: 1085

Re: Chain break blues...drivetrain upgrade options?

avoid wimpy light duty bicycle components

8 speed steel stuff wins round

frequently use wear gauge

replace cheap steel chain showing any signs stretch wear
by kcuf
Dec 24 2019 1:04pm
Forum: E-Bike Non-hub Motor Drives
Topic: BBS02 - 10S Cassette cogs eating freewheel spline & remedies
Replies: 4
Views: 618

Re: BBS02 - 10S Cassette cogs eating freewheel spline & remedies

avoid wimpy light duty bicycle components

8 speed steel stuff wins these situations
by kcuf
Nov 30 2019 10:57am
Forum: E-Bike Build Threads / Photos & Video
Topic: its about time i shared with you! e-bikes and e-skateboard
Replies: 1
Views: 560

Re: its about time i shared with you! e-bikes and e-skateboard

nice work love to see more

good tune too

imbed for ya

by kcuf
Nov 30 2019 10:52am
Forum: E-Bike General Discussion
Topic: About to click buy. Am I missing anything, or doing something wrong?
Replies: 20
Views: 1903

Re: About to click buy. Am I missing anything, or doing something wrong?

didnt see those dropouts before

not ideal but manageable

very tight axle should hold

or add something as a stop

to any forward movement

if its problem
by kcuf
Nov 30 2019 10:46am
Forum: E-Bike Technical
Topic: Why doesn't a li-ion battery take load?
Replies: 24
Views: 2175

Re: Why doesn't a li-ion battery take load?

lesson learned junk cells

never buy cells with fire in name
by kcuf
Nov 27 2019 9:06am
Forum: E-Bike General Discussion
Topic: About to click buy. Am I missing anything, or doing something wrong?
Replies: 20
Views: 1903

Re: About to click buy. Am I missing anything, or doing something wrong?

if lg

if properly welded

if decent bms

likely good battery pack


many vendor dont lie

many suppliers do


basically gamble

unattended charging

do where can survive fire


good luck
by kcuf
Nov 27 2019 6:58am
Forum: E-Bike General Discussion
Topic: About to click buy. Am I missing anything, or doing something wrong?
Replies: 20
Views: 1903

Re: About to click buy. Am I missing anything, or doing something wrong?

dunno seller gear sensor no big deal stop pedaling or simply shift when motor rpm winds up and watts go down ebay likely source if you must 12ga wire and choose power connectors many use app anderson power pole you will not longer need front shifter battery may fit or use problem solving sunrace slm...
by kcuf
Nov 26 2019 5:23pm
Forum: E-Bike General Discussion
Topic: 72 volt battery only chargers to 81 volts not 83volts
Replies: 14
Views: 1753

Re: 72 volt battery only chargers to 81 volts not 83volts

if resting charger 83v

81v pack may be out of cell balance