Search found 7137 matches

by wesnewell
Feb 11, 2018 1:57 am
Forum: E-Bike General Discussion
Topic: Recommend a E-conversion KIt 700c
Replies: 1
Views: 125

Re: Recommend a E-conversion KIt 700c

See need advice in sig.
by wesnewell
Feb 07, 2018 4:34 pm
Forum: Battery Technology
Topic: Please idiot check my lipo wiring diagram
Replies: 3
Views: 191

Re: Please idiot check my lipo wiring diagram

Confused by the 10/20C battery rating you use. That usually means 10C continuous and 20C burst. If that's the case then then each 6s 12ah pack is only rated for 120A continuous, and 240A burst, and the 48ah pack would be rated for 480A, 960A burst. 4awg wire is only rated for 135A, but that shouldn'...
by wesnewell
Feb 07, 2018 3:42 pm
Forum: E-Bike General Discussion
Topic: City E-bike
Replies: 3
Views: 253

Re: City E-bike

See need advice link in sig.
by wesnewell
Jan 31, 2018 1:13 pm
Forum: E-Bike General Discussion
Topic: Connecting batterys in series
Replies: 4
Views: 179

Re: Connecting batterys in series

Looks like from the photos you put 4 4s packs in series for 16s. Each pack charges to 16.8V for a total of 67.2V. That's too much voltage for most 48V controllers which have 63V caps in them. And some 48V controllers will have mosfets rated for 67V or less, but that's usually not a problem, as I run...
by wesnewell
Jan 30, 2018 1:45 am
Forum: E-Bike Technical
Topic: High amp controller
Replies: 6
Views: 183

Re: High amp controller

This is 80A. I wouldn't mod any controller for more than 50% over rating, but you could take this one to 120A easily.
https://www.aliexpress.com/store/produc ... 63950.html
by wesnewell
Jan 12, 2018 1:16 am
Forum: E-Bike Technical
Topic: 72v Lithium Battery Maximum Charge = 88.2v?
Replies: 7
Views: 299

Re: 72v Lithium Battery Maximum Charge = 88.2v?

Only you know what cells you have. some are rated for a max charge of 4.35V, while most are rated for lower max voltages, with 4.2V being the max rated for many 18650 cells. Some cells for the military are rated as high as 4.5V. But you can overcharge any of them. Overcharge them too much and bad th...
by wesnewell
Jan 06, 2018 1:05 pm
Forum: E-Bike General Discussion
Topic: Cruse control on ebikes
Replies: 11
Views: 437

Re: Cruse control on ebikes

:) I think I know what I had. It was not a lyen controller, but came with my first 48v 1000w yescomusa kit. Since I went to higher voltage I no longer used the controller. As original in the kit it didn't have CC, regen braking, or the speed controller enabled. I had to enable those feature by addin...
by wesnewell
Jan 06, 2018 10:56 am
Forum: E-Bike General Discussion
Topic: Cruse control on ebikes
Replies: 11
Views: 437

Re: Cruse control on ebikes

My old EB-212 controller controlled constant speed. It may not have done it going down a steep hill where it would coast faster than the set speed without power but I don't recall. Haven't used that controller since 2011 and no longer have it. I'd suspect the newer EB-312's are the same.
by wesnewell
Jan 05, 2018 4:05 pm
Forum: E-Bike General Discussion
Topic: Cruse control on ebikes
Replies: 11
Views: 437

Re: Cruse control on ebikes

Many controllers have real speed control like you want. Set speed and power will be increased or decreased to maintain the set speed. Been around for years.
by wesnewell
Jan 02, 2018 4:19 pm
Forum: E-Bike General Discussion
Topic: Thoughts on this controller for this motor?
Replies: 7
Views: 381

Re: Thoughts on this controller for this motor?

notice you also have a 3000 mxus. Regarding the wire coloring..did your controller phase and hall wires match up exactly with the motors phase and halls? Running sensorless, so not using the halls. With learning feature of controller, you can hook the phase wires any way you want. On my other bike ...
by wesnewell
Jan 02, 2018 1:52 am
Forum: E-Bike General Discussion
Topic: Thoughts on this controller for this motor?
Replies: 7
Views: 381

Re: Thoughts on this controller for this motor?

I double checked the connections. They all seem fine. Nothing loose or disconnected. Do you think that since the controller wattage is rated lower than the motor wattage that it might cause sputtering? Nope, the rating has nothing to do with it. I have a 1000W rated controller on my mxus 3000 and I...
by wesnewell
Jan 01, 2018 12:36 pm
Forum: E-Bike General Discussion
Topic: Thoughts on this controller for this motor?
Replies: 7
Views: 381

Re: Thoughts on this controller for this motor?

Sounds like a bad connection. Check phase and hall wire connections.
by wesnewell
Dec 31, 2017 1:45 am
Forum: Battery Technology
Topic: charger blows house fuse
Replies: 12
Views: 307

Re: charger blows house fuse

You say it's blowing fuses and you reset it. Since you can't reset a fuse, I'm assuming you mean a house circuit breaker. Check the wiring at the breaker panel. A loose connection there will cause the breaker to heat up and trip the breaker. It could also cause a fuse to heat up and blow also in cas...
by wesnewell
Dec 30, 2017 3:39 pm
Forum: Battery Technology
Topic: Suggestions for 100A, 15 to 20AH pack
Replies: 10
Views: 322

Re: Suggestions for 100A, 15 to 20AH pack

I've been using 24s 10ah 10C and 20C rc lipo packs for years without any problems. A 15ah 20C pack would be rated for 300A, 450A burst.and certainly wouldn't have a problem at only 100A.
by wesnewell
Dec 30, 2017 3:24 pm
Forum: Battery Technology
Topic: houston, we have puffing. this is a bad battery, correct?
Replies: 19
Views: 546

Re: houston, we have puffing. this is a bad battery, correct?

Personally, I'd open it up and and see if I could depuff the cells inside. I've depuffed many a lipo pack. Resealed and used for years longer. Over a year ago, I used some 5 year old depuffed lipo packs to replace the sla batteries in one of my ups's. Still working like a champ today. APC : 001,045,...
by wesnewell
Dec 27, 2017 5:56 pm
Forum: E-Bike Technical
Topic: Possible to enable regen on a controller from Mxus?
Replies: 2
Views: 183

Re: Possible to enable regen on a controller from Mxus?

Regen won't work on a lot of controllers if the LVC is too low for the battery connected. I had to change the LVC on my 72V controller when I went over 78V of battery. That nay or may not be the problem you're having.
by wesnewell
Dec 20, 2017 12:00 pm
Forum: E-Bike Technical
Topic: Two 750 watt hubmotors both dead
Replies: 9
Views: 430

Re: Two 750 watt hubmotors both dead

For what you paid for those, I'd contact the vendor.
by wesnewell
Dec 17, 2017 9:56 pm
Forum: E-Bike General Discussion
Topic: Advise on First ebike build
Replies: 6
Views: 432

Re: Advise on First ebike build

Should be able to find a suitable kit here. Any bike with steel rear dropouts would be best.
https://www.ebay.co.uk/sch/i.html?_from ... 5573.m1684
The 27.9ah (1440wh) battery pack should be plenty for 50 miles if you stay around 20 mph.
by wesnewell
Dec 16, 2017 12:13 am
Forum: E-Bike General Discussion
Topic: Back Wheel Motor vs Front
Replies: 12
Views: 551

Re: Back Wheel Motor vs Front

Better traction since most of the weight is on the rear wheel even without a motor. Stronger than front mount. If the rear wheel breaks you won't do a face plant on the ground like can happen if a front wheel comes off. All in all it's just safer in all riding conditions.
by wesnewell
Dec 04, 2017 11:05 am
Forum: E-Bike General Discussion
Topic: Most powerful rear hub motor for 135mm MTB frame?
Replies: 15
Views: 1078

Re: Most powerful rear hub motor for 135mm MTB frame?

Get a bike with steel rear dropouts and don't worry about the dropout width as it can easily be widened to 150mm or more. Then your motor options are limitless.
by wesnewell
Dec 01, 2017 12:34 am
Forum: E-Bike General Discussion
Topic: Suitable rim width?
Replies: 24
Views: 925

Re: Suitable rim width?

I have to double check but the outer width is 30mm, outer edge to outer edge. I think inner width is 25mm. This is a 26inch wheel and i bought Hookworms for front and back. The wheel with the motor is wider than the 30mm front wheel I don't know of any rim made that only has a 5mm difference betwee...
by wesnewell
Nov 30, 2017 2:23 pm
Forum: E-Bike General Discussion
Topic: Suitable rim width?
Replies: 24
Views: 925

Re: Suitable rim width?

Experts would not recommend using a 2.5" tire on a 30/23mm rim. Period. Anyone that has switched to wider rims with wider tires will tell you how much better they will perform. Max recommend tire width for a 23mm rim is 50mm/ A 2.5" tire is 63.5mm. See rim chart at bottom of post. Don't listen to Ch...
by wesnewell
Nov 30, 2017 11:21 am
Forum: E-Bike General Discussion
Topic: Suitable rim width?
Replies: 24
Views: 925

Re: Suitable rim width?

Dangers would be more chances of pinch flats. Tire wobble/roll. Weaker less stable wheel. Smaller tire footprint to wear out middle of tire faster, etc. The wider the rim, the better it will perform. I'd consider 32mm inside a minimum for a 2.5"-3.0" tire. and wider than that won't hurt. A 30mm outs...
by wesnewell
Nov 22, 2017 5:45 pm
Forum: E-Bike General Discussion
Topic: Standard Help me build an Ebike thread
Replies: 24
Views: 959

Re: Standard Help me build an Ebike thread

Jacob's Ladder wrote:
Nov 21, 2017 10:30 pm
I've been trying to search wesnewell's posts
I'm not sure what you're trying to find, but most of what you need to know is in this post.
https://endless-sphere.com/forums/viewto ... =3&t=66302
I just added some info about battery sizes required the other day.