Search found 1695 matches

by LewTwo
May 05 2022 4:49am
Forum: EBike Technical
Topic: Looking for battery advice
Replies: 8
Views: 205

Re: Looking for battery advice

Also be aware that the range will decrease over the life of the battery. I add an extra 20-25% capacity so that I still have adequate range at "end of life". Also be aware that different battery chemistries have different life expediencies ( and cycle limits ). Examples: approximately 3 ye...
by LewTwo
Apr 29 2022 10:42pm
Forum: EBike Technical
Topic: XLD brainpower motor controller repair
Replies: 11
Views: 214

Re: XLD brainpower motor controller repair

Brainpower is a brand commonly sold on Amazon. They may be the only ones using an XLD connector for a hub motor ( more commonly found on scooters ) You could message the vendor to see if they can provide something similar. https://www.amazon.com/dp/B016O0B0MQ old, long thread here .... may be of som...
by LewTwo
Apr 29 2022 10:12pm
Forum: EBike General Discussion
Topic: Please help find the elusive ebike charger
Replies: 14
Views: 314

Re: Please help find the elusive ebike charger

To be fair, all the failed chargers I've ever witnessed firsthand just stopped, no drama. Ditto Again. I got tired of throwing good money down the same hole. I use a Riden RD6006 variable power supply. The advantage being I can charge any type/size battery and use it for a with other electronic pro...
by LewTwo
Apr 29 2022 4:45pm
Forum: EBike General Discussion
Topic: Please help find the elusive ebike charger
Replies: 14
Views: 314

Re: Please help find the elusive ebike charger

Chalo wrote:
Apr 29 2022 12:29pm
My experience with the Chinese chargers sold by Luna Cycle is that they're as unreliable as any other cheapo chargers.
Ditto
by LewTwo
Apr 28 2022 2:03am
Forum: EBike Technical
Topic: UART protocol vs IOS
Replies: 7
Views: 216

Re: UART protocol vs IOS

Just to make things a bit more complicated ... Even if you know the standard protocol you still need to know the available commands and responses. These tend to vary among manufacturers and even similar devices from the same manufacturer. Most often those manufacturers do not document those command ...
by LewTwo
Apr 28 2022 1:45am
Forum: EBike General Discussion
Topic: [Connector]Single connector for motor to controller connection...
Replies: 8
Views: 318

Re: [Connector]Single connector for motor to controller connection...

My controller and batteries are in a wood case (custom made). I would like to bolt a connector to a wood case. Panel Mount Mill-Spec connectors. They are commonly used in industrial applications and they are expensive. However there are all sorts on "Panel Mount" automotive connectors tha...
by LewTwo
Apr 26 2022 2:23am
Forum: EBike General Discussion
Topic: She wants to buy me a battery for 79th B'day..
Replies: 8
Views: 308

Re: She wants to buy me a battery for 79th B'day..

I can not speak from personal experience but I know that there are LiFePO4 batteries advertised as drop-in replacements for SLA batteries ... same size, shape and capacity. They weigh a bit less, have built-in BMS, use the old SLA chargers and have a much longer service life ( not to mention a much ...
by LewTwo
Apr 25 2022 12:27am
Forum: EBike General Discussion
Topic: what is it about a bmx bike that some people dont understand?
Replies: 31
Views: 994

Re: what is it about a bmx bike that some people dont understand?

Chalo wrote:
Apr 23 2022 10:40am
I designed a similar system for pedicabs to allow the use of the same kind of wheel at all three corners of the trike. We made a bunch of them that are still in service in the fleet almost seven years on.
Interesting fork. Did you build that from scratch ?
by LewTwo
Apr 21 2022 4:48am
Forum: EBike Technical
Topic: recharge battery by pedaling ... no chain ring or sprocket
Replies: 11
Views: 376

Re: recharge battery by pedaling ... no chain ring or sprocket

Also...and I know this may seem a little far afield but with no chain ring, I have to believe that some sort of dynamo, magneto or gizmo exists that would allow the rider to pedal and deposit energy back into the battery. The point everyone is trying to make is although it can be done the returns a...
by LewTwo
Apr 14 2022 8:05pm
Forum: EBike Build Threads
Topic: Hill Climbing eBike
Replies: 182
Views: 6242

Re: Hill Climbing eBike

nicobie wrote:
Apr 14 2022 6:46pm
That's interesting. If true he was banned under that name years ago.

I was wrong about safe disc being banned. Neptronix axed him a couple of weeks ago for acting up and IMHO did the right thing.
Amen
by LewTwo
Apr 12 2022 5:59am
Forum: EBike General Discussion
Topic: Quick disconnect for phase wires
Replies: 65
Views: 1715

Re: Quick disconnect for phase wires

Your multi meter can measure 1 ohm accurately? Exactly what I was thinking. I have a special meter for reading low resistances. It is a HR-390 that I got via a slow boat via FleaBay. As far as I know it is the least expensive thing that can accurately read resistance under about 10 Ohms. I have tes...
by LewTwo
Apr 08 2022 2:17pm
Forum: Bike Mechanical & Structural
Topic: Fiido-X ebike recalled
Replies: 2
Views: 214

Re: Fiido-X ebike recalled

fechter wrote:
Apr 08 2022 10:04am
Bet this could hurt:
Fiido, maker of cheap direct-to-consumer electric bikes, has suspended sales of its Fiido X and is preparing a recall after discovering a fault that could cause the folding e-bike to break in two
OUCH!!! That could ruin a person's day ....
by LewTwo
Apr 06 2022 9:59pm
Forum: EBike General Discussion
Topic: Guadeloupe
Replies: 0
Views: 196

Guadeloupe

I am considering a extended vacation in Guadeloupe (a French overseas region, an island group in the southern Caribbean Sea) next winter. I am curious to find out if there are any Forum members that live there or are familiar with those Islands.

merci
by LewTwo
Apr 01 2022 10:23am
Forum: EBike Technical
Topic: Torque arms help
Replies: 55
Views: 1432

Re: Torque arms help

Congratulations :) Please to post a couple of picture when you have the build completed. Your final design looks so much better than the original, and less wasted material too. :thumb: I did CAD for about 8 years, about 35-40 or so years ago. I think it was the first CAD system developed, and ran o...
by LewTwo
Mar 30 2022 8:51pm
Forum: EBike Technical
Topic: Torque arms help
Replies: 55
Views: 1432

Re: Torque arms help

Congratulations :)

Please to post a couple of picture when you have the build completed.
by LewTwo
Mar 30 2022 8:18pm
Forum: EBike General Discussion
Topic: Challenge: Build that outperforms Ride1up Roadster v2 for less?
Replies: 15
Views: 344

Re: Challenge: Build that outperforms Ride1up Roadster v2 for less?

"36V 7.0ah Samsung 35e Cells" (252 watt hours) At 33 pounds it is light for an ebike however you are not going to get very far with that battery especially after a couple of years have degraded the capacity. I use 149 watt hours just going to the grocery store and back. It is only about 2-...
by LewTwo
Mar 18 2022 1:10pm
Forum: EBike General Discussion
Topic: Using regenerative breaking as home electric generator
Replies: 58
Views: 1673

Re: Using regenerative breaking as home electric generator

Every time I see this thread I can not help but think of those old WW2 movies with one soldier talking on a shortwave radio while the other cranks the generator by hand.

https://en.wikipedia.org/wiki/SCR-284
by LewTwo
Mar 09 2022 1:10am
Forum: EBike General Discussion
Topic: Ok now things are getting crazy
Replies: 5
Views: 517

Re: Ok now things are getting crazy

I used to write LISP programs for AutoCAD.
We called it "Lost in Stupid Parenthesis".
by LewTwo
Mar 05 2022 2:48am
Forum: EBike Non-hub Motor Drives
Topic: 3DE - 3D Printed Carbon Wrapped e-bike frame
Replies: 46
Views: 2900

Re: 3DE - 3D Printed Carbon Wrapped e-bike frame

Compoundbike wrote:
Mar 04 2022 5:30pm
.... hope it has enough Carbon to hold the Bike together.
If anyone figures out how to predict that without expensive finite element software then let me know.
by LewTwo
Mar 05 2022 2:09am
Forum: EBike Build Threads
Topic: Car Replacement DIY E-Bike Journey (Appreciate guidance!)
Replies: 26
Views: 1059

Re: Car Replacement DIY E-Bike Journey (Appreciate guidance!)

Comfort is paramoun t here because I have a dodgy neck and want to be able to cruise around 15MPH for the best part of a day, So upright position with a lower seat and higher handlebars. I like this Fiido T1 Cargo/Utility bike a LOT www.youtube.com/watch?v=6EbUdvWrcLM especially for those spoke and...
by LewTwo
Mar 05 2022 1:34am
Forum: EBike Build Threads
Topic: Hill Climbing eBike
Replies: 182
Views: 6242

Re: Hill Climbing eBike

Have you checked to see if that external air canister on the shock is actually functional? A lot of the "knock-offs" are strictly there a appearance ... there are NO air passages between the canister and the shock absorber.
by LewTwo
Mar 03 2022 8:52pm
Forum: Bike Mechanical & Structural
Topic: Different project
Replies: 5
Views: 251

Re: Different project

Brushless motors for cycles are three phase AC. They would have to be physically synchronized. Tricycle land gear? Here is an idea, assuming it is not going to be going very fast: Make the front wheel a trailing wheeling (like on a shopping cart). Make the airplane controls a joystick (like and airp...
by LewTwo
Mar 02 2022 10:58pm
Forum: EBike Technical
Topic: Torque arms help
Replies: 55
Views: 1432

Re: Torque arms help

Audisport09 wrote:
Mar 02 2022 9:20am
They confirmed that QS205 is indeed around 10 x 16mm. I'm sure that QS273 will be 12 x 16mm. When you get a chance are you able to produce drawing. I promise, this is the very last time asking. Thank you ever so much.
I did not really trust the 13mm across flats either.
Done and Done.
by LewTwo
Feb 28 2022 9:03am
Forum: EBike General Discussion
Topic: Tiny powerful power supply.
Replies: 23
Views: 735

Re: Tiny powerful power supply.

i would not call US$220 cheap ...