Search found 429 matches

by thundercamel
Jan 05 2021 3:39pm
Forum: E-Bike Build Threads / Photos & Video
Topic: HPV Streetmachine / Grin Build
Replies: 8
Views: 408

Re: HPV Streetmachine / Grin Build

Subscribed! Looks like fun :)
by thundercamel
Jan 05 2021 3:32pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Another full suspension build
Replies: 272
Views: 4163

Re: Another full suspension build

As for those file transfers, the large files like your screenshot of a video file will transfer quickly, about 100 MB/s. The groups of small files such as images take a lot longer. In my head, it has to start a new file, fill it with data, close the file, update the MFT or table of contents for each...
by thundercamel
Dec 22 2020 2:11pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1639
Views: 211018

Re: bluetooth BMS?

Hi all I'm having an issue with my 4s 80 amp Lifepo4 bms mounted on 4s of 60ah CALB cells in a DIY power case I built. When I charge with my 20 amp wall plug charger, the xiaoxang software dies. It all works perfectly while discharging. My loads are up to 50 amps. Would appreciate any input ✌ Is th...
by thundercamel
Dec 08 2020 10:07am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1639
Views: 211018

Re: bluetooth BMS?

The balance between the cell group voltages looks close enough to me, where I wouldn't worry about it right now. Measure the voltage coming out of the charger with a DMM (multi-meter), and the voltage at the charge connector that you're plugging it into, and then report back. Most chargers have a b...
by thundercamel
Dec 04 2020 4:35pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1639
Views: 211018

Re: bluetooth BMS?

The balance between the cell group voltages looks close enough to me, where I wouldn't worry about it right now. Measure the voltage coming out of the charger with a DMM (multi-meter), and the voltage at the charge connector that you're plugging it into, and then report back. Most chargers have a ba...
by thundercamel
Nov 19 2020 8:38pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Lightweight efficiency oriented BikeE conversion
Replies: 64
Views: 7199

Re: Lightweight efficiency oriented BikeE conversion

Oh, so the cannondale is still a better frame for speed than the Maxarya is? What's the differences between the two?
by thundercamel
Nov 17 2020 5:24pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Lightweight efficiency oriented BikeE conversion
Replies: 64
Views: 7199

Re: Lightweight efficiency oriented BikeE conversion

I had to look up what a Maxarya Ray-2 was, and :D $ :shock:

At least something like this is still being built! Any thoughts on front suspension?
by thundercamel
Nov 17 2020 5:18pm
Forum: E-Bike Build Threads / Photos & Video
Topic: BikeE Build
Replies: 21
Views: 1626

Re: BikeE Build

Fjp, I just saw in another thread that you've been holding out on us! The Bike-E looks to be operational, and you've been using it in the gravel I take it. How do you like it, and what kind of trips have you been on? I do now have two 20" front wheels for my recumbent, and I swapped them mid ri...
by thundercamel
Nov 13 2020 2:59pm
Forum: E-Bike Build Threads / Photos & Video
Topic: High performance & durability Cannondale Semi Recumbent
Replies: 305
Views: 35071

Re: High performance & durability Cannondale Semi Recumbent

I'm glad to see you around recently, and that I don't have these goatheads in my area! Aren't there small scooter tires that would be the equivalent of a 16" bicycle tire?
by thundercamel
Nov 04 2020 2:10pm
Forum: E-Bike Build Threads / Photos & Video
Topic: High performance & durability Cannondale Semi Recumbent
Replies: 305
Views: 35071

Re: High performance & durability Cannondale Semi Recumbent

AW, that's an interesting idea, but how strong is it? Would you run 3000 watts through it? :lol: Wouldn't filling in the gashes with a tig welder and aluminum fill rod be as strong or stronger than the aluminum was originally? I'm no welder, but I've seen it done on shows several times. LH7X4BFrVtQ
by thundercamel
Oct 22 2020 2:26pm
Forum: E-Bike General Discussion
Topic: How practical is 72v (or 60v) for a street legal direct drive set-up meant for climbing and sub 28 mph speed?
Replies: 124
Views: 3126

Re: How practical is 72v (or 60v) for a street legal direct drive set-up meant for climbing and sub 28 mph speed?

I'm not saying you are on the wrong track here though. I built a bike specifically designed to climb the rocky mountains on 1200w of max power measured going into the controller. 22 amps controller, 14s battery, or commonly called 52v. My goal was to reach a max speed of no more than 20 mph, and be...
by thundercamel
Oct 20 2020 3:45pm
Forum: E-Bike General Discussion
Topic: Questions on full-suspension bicycle for large batter (20ah) and rear hub-motor ebike
Replies: 21
Views: 728

Re: Questions on full-suspension bicycle for large batter (20ah) and rear hub-motor ebike

Just found this on Craigslist in my area. Its a 1997 GT-LTS-3 which has apparently had many parts upgraded. It looks exactly like what I am looking for in terms of suspension. I can easily fit a 20ah triangle battery in there. It has caliper V-brakes unfortunately, and I wanted disc brakes but I gu...
by thundercamel
Oct 20 2020 11:47am
Forum: E-Bike Build Threads / Photos & Video
Topic: My econo-e-bike
Replies: 109
Views: 16346

Re: My econo-e-bike

Glad you're enjoying the new tires! As I've been getting used to the trails around me, I've been trying out more off roading for something new, and I would like to do more. Just curious with those 2.4" tires, do you happen to know the inside with of your wheel/rim? The only 2.4" tire I hav...
by thundercamel
Oct 15 2020 11:22am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1639
Views: 211018

Re: bluetooth BMS?

The balance wire between 10 and 11 has a problem?
by thundercamel
Oct 15 2020 10:28am
Forum: E-Bike Build Threads / Photos & Video
Topic: My econo-e-bike
Replies: 109
Views: 16346

Re: My econo-e-bike

Ah, got it. Forgot to say I had the same problem with the paper thin sidewalls on my 20" Smart Sam requiring more pressure than I thought to corner on pavement.
by thundercamel
Oct 14 2020 11:56am
Forum: E-Bike Build Threads / Photos & Video
Topic: My econo-e-bike
Replies: 109
Views: 16346

Re: My econo-e-bike

Took me a while to choose the Crazy Bobs, but after riding them for a while, I'm definitely going with something else next. I've thought about the Marathon, but I'm leaning toward better offroad traction now. I replaced my rear tire with the old Forte knobby I was using before so I could get my bik...
by thundercamel
Oct 12 2020 3:48pm
Forum: E-Bike Build Threads / Photos & Video
Topic: My econo-e-bike
Replies: 109
Views: 16346

Re: My econo-e-bike

Oh good, I'm glad the battery turned out as requested! Man, those are some nice views, and the power available sounds great! I do use the Marathon MTB tire on my wife's bike (with puncture resistant tubes on all bikes), and not only did it give me the impression of being quite puncture resistant, bu...
by thundercamel
Oct 12 2020 8:47am
Forum: E-Bike Build Threads / Photos & Video
Topic: My econo-e-bike
Replies: 109
Views: 16346

Re: My econo-e-bike

Good luck! I'm guessing it didn't arrive yet? Personally, if I had to work with a pre-built battery, I'd swap out the BMS for a smart bluetooth one anyway, so I can monitor cell group voltages.

Just to ease your worries, :lol:
by thundercamel
Oct 07 2020 9:14pm
Forum: General Discussion
Topic: Hit an animal last night!
Replies: 107
Views: 23642

Re: Hit an animal last night!

https://www.idahostatejournal.com/news/local/bicyclist-injured-after-colliding-with-deer/article_623e372b-21d8-5592-99b0-9f3e3fe37fa3.html :shock: This almost happened to me just after dusk one night, in a non-rural area where that young deer should not have been. I was going about 25mph late to ge...
by thundercamel
Oct 07 2020 8:25pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Around the world on a solar ebike
Replies: 326
Views: 51943

Re: Around the world on a solar ebike

Great work! Did you encounter any unexpected difficulties, such as flat tires? What parts of the trip did you like best? Would you rather be on a road that's straight or curvy? Also in the video I sometimes saw you cranking pretty fast in low gear going uphill, when I would have expected more motor ...
by thundercamel
Sep 30 2020 10:44am
Forum: Electric Watercraft
Topic: Shamrock, 25 foot sailboat electric conversion with an ebike hub motor
Replies: 40
Views: 2975

Re: Shamrock, 25 foot sailboat electric conversion with an ebike hub motor

Uma was my first thought when I saw this thread. Thanks for digging up that data!
by thundercamel
Sep 07 2020 4:50pm
Forum: E-Bike Build Threads / Photos & Video
Topic: My econo-e-bike
Replies: 109
Views: 16346

Re: My econo-e-bike

I suppose a better way to think of the LVC is just like the charger does Constant Current, then Constant Voltage while charging the battery. The motor controller discharges the battery at a constant current until the LVC, then it discharges at a constant voltage.
by thundercamel
Sep 04 2020 2:03pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1639
Views: 211018

Re: bluetooth BMS?

I'd say go for it. I know from measuring my hub's hall sensors that each of the 3 wires just cycles between 5 and 0 volts. If you can measure that coming out of the sensor, then you're golden.