Search found 2821 matches

by Cowardlyduck
Jul 28 2020 7:30am
Forum: E-Bike Build Threads / Photos & Video
Topic: Around the world on a solar ebike
Replies: 305
Views: 40731

Re: Around the world on a solar ebike

There was lots of research done from about 1975 to 2005 on the aerodynamics of recumbents, by university engineering departments, and independent developers. They found that, as cowardlyduck suggests, an upright seating position acts as a parachute. Laying the seatback back reduces that effect. Als...
by Cowardlyduck
Jul 26 2020 10:35pm
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

Simonten wrote:
Jul 26 2020 4:04pm
CW have you done any work on the 2KW battery?
Nope. It will be a while yet as I have some other projects that are higher priority first...like this powerwall. :)
DSC_6161.JPG
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I'm hopeful that I'll get to it before the end of the year though. :)

Cheers
by Cowardlyduck
Jul 26 2020 7:18am
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

Looks awesome Brian! We'll have to get out for another ride and 'belt' it around the bush. :P I finally put together a little video of our last few rides. No music on this one so you can really hear the noise of the belt/chain. Keep in mind the chain sound is resonating through the frame for most of...
by Cowardlyduck
Jul 25 2020 11:23pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1502
Views: 184088

Re: bluetooth BMS?

They are mostly the same pin-out aren't they? For example, I've wired several up recently like this: https://ae01.alicdn.com/kf/HTB1jnzaatfvK1RjSspoq6zfNpXau/smart-BMS-14S-80A-100A-120A-48V-Lithium-li-ion-lipo-balance-BMS-charge-disply-with.jpg If you can't get the info, I suggest trying similar to ...
by Cowardlyduck
Jul 23 2020 4:47am
Forum: E-Bike Build Threads / Photos & Video
Topic: Around the world on a solar ebike
Replies: 305
Views: 40731

Re: Around the world on a solar ebike

Small, seemingly insignificant changes in draft angle or the gap between the rider's body and the fairing can make a surprisingly large difference. This is what I think makes the difference in my case. I think that in my semi-recumbent position, my body catches a substantial amount of air basically...
by Cowardlyduck
Jul 22 2020 7:18am
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

I haven't tried going for super long range yet, but on a mixed ride the other day with a lot of mode 1 I managed 16wh/km.
I think it would be easy to get that down to 13wh/km if trying harder, which would get around 60km range from a standard battery.

Cheers
by Cowardlyduck
Jul 21 2020 3:56am
Forum: E-Bike Build Threads / Photos & Video
Topic: Around the world on a solar ebike
Replies: 305
Views: 40731

Re: Around the world on a solar ebike

I find this interesting as I've found the opposite. After I first put a solar panel on the front of my semi-recumbent I noticed a significant improvement in cruising speed (45-50kph) efficiency of about 50W+. I've increased the size of the panel over the years from 15W to 40W now and the efficiency ...
by Cowardlyduck
Jul 18 2020 9:40pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1502
Views: 184088

Re: bluetooth BMS?

Just know that you have to watch your C-rate charging, if you might get over 0.4C you need to throttle it way down, say below 0.1C as temps drop from 25°C down to freezing, and do not charge at all below that. Thanks for this advice. Unfortunately I can't really control the charge rate that specifi...
by Cowardlyduck
Jul 17 2020 7:55pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1502
Views: 184088

Re: bluetooth BMS?

With such big cells, balancing will take a long time. Let us know how it goes, or do you have a thread for this project? No didn't bother with this one, although I've posted a fair bit on the DIY powerwalls facebook page: https://www.facebook.com/groups/diypowerwalls/ Personally I would only use th...
by Cowardlyduck
Jul 17 2020 6:17am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1502
Views: 184088

Re: bluetooth BMS?

It'll depend on your cells whether 3.4V is a good voltage to cut discharge at though. I won't go into too much detail here, but these are the cells: https://batteryhookup.com/products/new-lg-chem-n2-1-3-7v-120ah-cell-module It's still a work in progress, but this is the powerwall the BMS is part of...
by Cowardlyduck
Jul 17 2020 4:19am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1502
Views: 184088

Re: bluetooth BMS?

To me, that sounds like correct operation of the BMS (correct LVC operation). IMO the BMS LVC is effectively a last resort "fail-safe", just in case you accidentally discharge too far, to ensure that you don't damage the cells. It would be ideal if you could program/set the inverter to stop dischar...
by Cowardlyduck
Jul 16 2020 7:25am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1502
Views: 184088

Re: bluetooth BMS?

The other thing that doesn't seem to be working is the ability to charge following a BMS low cell voltage trip. I'm using it with a powerwall battery connected to my inverter which needs to see voltage in order to charge it. Once the BMS trips it cuts voltage, so my inverter doesn't know to try cha...
by Cowardlyduck
Jul 15 2020 10:17pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1502
Views: 184088

Re: bluetooth BMS?

What features are you looking for, that the android app is too basic to provide? I was referring to the very basic one available on the Google Play store. It's next to useless unless the BMS is setup correctly prior. I do like the features of the proper app. I like how it can show the variance of i...
by Cowardlyduck
Jul 15 2020 5:03am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1502
Views: 184088

Re: bluetooth BMS?

serious_sam wrote:
Jul 15 2020 5:00am
Looks like version 3.1.1013
Is there a newer version?
I did notice it's a bit buggy and hangs when applying settings sometimes.
by Cowardlyduck
Jul 15 2020 4:07am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1502
Views: 184088

Re: bluetooth BMS?

What version of the app are you using? Android or iOS? I never saw a notification for this so assumed nobody had responded. Anyway, I also reached out to the Alibaba seller and managed to get it through them. For anyone else looking, attached is the download of the app. They also gave me this link:...
by Cowardlyduck
Jul 07 2020 3:48am
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

jimmywazer wrote:
Jul 07 2020 3:30am
Does anyone have any tips on replacing the front sprocket? I can't get the old one off...
Yeah, it's not easy! I used a plastic tyre lever on mine. If you can't fit that in there try something thinner and just work at it from opposite sides using WD40 to get it started.

Cheers
by Cowardlyduck
Jul 06 2020 3:54am
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

Yeah, this is one reason why I (selfishly) really like to see LMX doing so well. It really sucks when such great brands disappear and even more so for those customers who invested in them. I had that recently with Adaptto, which is one of the reasons I sold my Fighter with it's Mini-E while it was s...
by Cowardlyduck
Jul 05 2020 5:11am
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

Thanks Joe. Glad to know I shouldn't have the same frame issue. I thought the shut-down rate was only on powering off, so set it low. Seems I was mistaken and this might explain the lag I feel when letting off the throttle or pedalling. That might also help in relation to the other cek setting if I ...
by Cowardlyduck
Jul 03 2020 10:50pm
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

Here you go Joe,
DSC_6135.JPG
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Turns out it's under control modes, not motor settings like I thought.

I'm not 100% sure how much effect it has, but it does seem to pull harder off the line after changing this.

Cheers
by Cowardlyduck
Jul 03 2020 8:19am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1502
Views: 184088

Re: bluetooth BMS?

Hey guy's, I recently got one of these for a house power wall project. https://www.aliexpress.com/item/4000465536822.html? I managed to wire it up and connect the basic xioxiang BMS app. I'm a little disappointed at how basic the app is and was wondering if there are any alternatives that will work ...
by Cowardlyduck
Jul 03 2020 3:29am
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

I know I have an early frame...have the same red sprocket cover. I assume mine and the other early adopters have the updated frame from serial production, not the same prototype style as this?

Cheers
by Cowardlyduck
Jul 02 2020 7:51am
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

Thanks for the feed-back, We have some cushcore on order too for a customer in the US, never installed that on one of our bikes yet, what is your experiance with those? Best regards Adam Well, they are awesome and do work, but getting them installed is very hard. I followed the instructions exactly...
by Cowardlyduck
Jul 02 2020 4:43am
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

Great stuff Adam, thanks for the Vlog. I was a little worried Covid might make it hard for LMX, but it sounds like the opposite is happening. Glad you have so many orders! Hi CD In advance mode I find these settings. Not sure where you see this 5000A. Acceleration lim 20000ERPM/s Deaccelleration lim...
by Cowardlyduck
Jun 29 2020 7:26am
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

Hey Joe, The 5000A acceleration setting is buried in the control settings I think. It's called acceleration limit from memory. I'll try and take a photo if I remember, but I'm sure you'll find it if you look long enough. Brian and I had a great ride on our LMX 64's on the weekend and there are defin...
by Cowardlyduck
Jun 24 2020 6:51am
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 701
Views: 71466

Re: E-S LMX 64 Bike Owners

Thanks Adam. Fixed!
DSC_6129.JPG
DSC_6129.JPG (233.8 KiB) Viewed 363 times
The flange was stuck to the old sprocket so tight I thought it was one piece! :lol:

Now my bike is back to full operation. :D

Cheers