Search found 3410 matches

by cal3thousand
Nov 09 2018 12:18pm
Forum: E-Bike Build Threads / Photos & Video
Topic: A couple more Norcos
Replies: 7
Views: 333

Re: A couple more Norcos

Once again, you've made some fine frames, Sam.

Can't wait to see the final products.
by cal3thousand
Aug 03 2018 11:27am
Forum: E-Vehicles General Discussion
Topic: Mac 10T
Replies: 1
Views: 295

Re: Mac 10T

Besides the obvious, the only difference is the axle size. The cassette version has smaller axle on one side, leaving a smaller flat as well. I have one, and it works decently, but I wish they would have fixed that to be the same on both sides.
by cal3thousand
May 09 2018 2:49pm
Forum: Items Wanted
Topic: Additive V2.
Replies: 1
Views: 161

Re: Additive V2.

I have one that I can sell you. It is in good condition. I'd sell it for $120 plus shipping.
by cal3thousand
Apr 27 2018 4:19pm
Forum: E-Bike Reviews & Testing
Topic: Downtube 9FS folding bike review - my take
Replies: 13
Views: 1045

Re: Downtube 9FS folding bike review - my take

That's an excellent review. There's certainly a place in the market for frames like this. Too bad, this one had some issues.
by cal3thousand
Apr 20 2018 2:35pm
Forum: General Discussion
Topic: BBSHD and Sturmey Archer S2K 2 Speed Kick Shift Disc Brake Rear Hub
Replies: 1
Views: 260

Re: BBSHD and Sturmey Archer S2K 2 Speed Kick Shift Disc Brake Rear Hub

I've never had one, but reading about it a bit, I have questions on how you expect it to work with a BBSHD. So if you want to shift, you will get off throttle and hit reverse? I don't understand how you will get the chain to travel backwards to initiate the shift, since the BBSHD has an internal fre...
by cal3thousand
Apr 20 2018 1:10pm
Forum: Items for Sale - Used
Topic: ebike for sale
Replies: 4
Views: 1339

Re: ebike for sale

If you really want to fund this Haibike with the sale of your Raleigh bike, consider posting an image. This is the internet after all. :wink:
by cal3thousand
Apr 20 2018 11:54am
Forum: Items for Sale - New
Topic: 48v 11ah nos boxes of 12 cells
Replies: 20
Views: 2147

Re: 48v 11ah nos boxes of 12 cells

... Full bms for LTO are always high cost. Don't know why. I have an extra one of these 80a 10s for cost if it helps. https://www.aliexpress.com/item/Customize-LTO-battery-BMS-80A-common-port-circuit-protection-board-2-4V-lithium-titanate-battery-BMS/32847727973.html?spm=a2g0s.9042311.0.0.KYrybo .....
by cal3thousand
Apr 11 2018 5:44pm
Forum: Items for Sale - Used
Topic: More LTO cells ~3.5ah
Replies: 19
Views: 1490

Re: More LTO cells ~3.5ah

I would like to start using LTO in more applications in the future, based on what you've been sharing. Thanks for supplying these. So to that end, I think I should start with a batch of these smaller pouches and see what I can make for fun and figure out how to build these things. I'll take a dozen ...
by cal3thousand
Apr 10 2018 1:51pm
Forum: E-Bike Technical
Topic: Quieting my charger
Replies: 2
Views: 213

Re: Quieting my charger

Seems like you traded the benefits of the case for the benefit of reduced noise and increased cooling. If that was your intended effect, you're golden. But for any others looking to simply reduce the noise, they could try a quiet 40mm fan: https://www.newegg.com/Product/Product.aspx?Item=9SIAB944H92...
by cal3thousand
Apr 10 2018 1:08pm
Forum: Battery Technology
Topic: LTO Lithium Titanium Oxide (Titanate) Battery 30S (now 32S)- Seeking the Ultimate Commuter Battery
Replies: 160
Views: 11571

Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

I like it!...as long as the battery tabs are aluminum-to-aluminum, the metal on the outside that is clamping them together is free to be steel, brass, etc... Some ideas and links littered throughout this PriusChat thread: https://priuschat.com/threads/connecting-a123-20ah-lithium-prismatic-cells.11...
by cal3thousand
Mar 21 2018 9:59am
Forum: Items for Sale - Used
Topic: FS (Vermont) - MAC 8T cassette on 20"
Replies: 10
Views: 620

Re: FS (Vermont) - MAC 8T cassette on 20"

That's a decent deal for someone. Kudos for including the location in the post title. GLWS
by cal3thousand
Mar 20 2018 5:07pm
Forum: Items for Sale - Used
Topic: sold
Replies: 2
Views: 731

Re: For Sale Tesla Battery Modules

Whats' the voltage and Ah? Capacity: 232Ah, 5.3kWh Height: 3.1 Inches Width: 11.9 Inches Length: 26.2 Inches Weight: 55 Pounds Bolt Size: M8 Voltage nominal: 3.8V/Cell, 22.8V/Module Charge voltage cut-off: 4.2V/Cell, 25.2V/Module Discharging cut-off: 3.3V/Cell, 19.8/Module Maximum Discharging Curre...
by cal3thousand
Mar 15 2018 11:11am
Forum: Items for Sale - Used
Topic: More LTO cells ~3.5ah
Replies: 19
Views: 1490

Re: More LTO cells ~3.5ah

I'll take a sample to try out if you are still offering. My partner is on vacation for a couple weeks. He has test charged a completely dead cell @25a rate. Full capacity. I have come up with a number of uses for them and would likely not have a problem going through more than 500 cells pretty quic...
by cal3thousand
Mar 15 2018 11:06am
Forum: Battery Technology
Topic: How I charge my ebike from J1772
Replies: 25
Views: 1809

Re: How I charge my ebike from J1772

I skipped the lasts half dozen posts as this has gotten a bit off the rails. I just wanted to post my appreciation for Jim's efforts to make the video. I saw the $150 control boxes elsewhere and thought that there must be an easier (and less expensive) way to do it. A couple resistors, a diode, and ...
by cal3thousand
Mar 14 2018 1:51pm
Forum: Items for Sale - Used
Topic: [ For sale - EU ] Lot of APR48-ES - 48 Volt - 41,7 A * 65 Euro / pcs *
Replies: 7
Views: 1184

Re: [ For sale - EU ] Lot of APR48 - 54.5 Volt - 30 A * 45 Euro / pcs *

These are perfect for up to 13S.... I would do it, but have way too many chargers. :oops:
by cal3thousand
Mar 09 2018 12:52pm
Forum: Items for Sale - Used
Topic: Mac motor rear cassette side cover
Replies: 14
Views: 862

Re: Mac motor rear cassette side cover

It's the new cassette version? or the old freewheel version?
by cal3thousand
Mar 07 2018 11:00am
Forum: Items for Sale - Used
Topic: Mac motor rear cassette side cover
Replies: 14
Views: 862

Re: Mac motor rear cassette side cover

Which side do you have?
by cal3thousand
Feb 13 2018 3:29pm
Forum: E-Bike General Discussion
Topic: optimal shark battery placement on my bike, opinions?
Replies: 14
Views: 502

Re: optimal shark battery placement on my bike, opinions?

Optimal pack placement for any battery pack would be between the wheels along the line that your axles create.

From that, any deviation should be considered a compromise to a well controlled center of gravity.
by cal3thousand
Feb 07 2018 7:14pm
Forum: Items for Sale - Used
Topic: Yuba Mundo v4.3 frame with many extras $500
Replies: 2
Views: 656

Re: Yuba Mundo v4.3 frame with many extras $500

I can't see the image. Anyone else having this issue?
by cal3thousand
Feb 01 2018 2:59pm
Forum: Motor Technology
Topic: Ferrofluid for hub cooling? BS or real?
Replies: 33
Views: 1928

Re: Ferrofluid for hub cooling? BS or real?

It's likely that the 8ml isn't going to cover every square mm of the magnets and doesn't need to. There may be something out there that's better than the current Ferrofluid because it can completely cover the magnets before it reaches the physical limitations of the fluid to cling to the surface. Bu...
by cal3thousand
Feb 01 2018 1:56pm
Forum: Motor Technology
Topic: Cheap hub sink?
Replies: 3
Views: 333

Re: Cheap hub sink?

Hey Guys, I noticed that there are companies who sell those aluminum heatsinks to go on the hub itself while being locked to eachother with screws to make a 360 degree circle. The problem is that they charge like $70 for them. Is there an alternative? like a business that sells something similar bu...
by cal3thousand
Feb 01 2018 1:42pm
Forum: Motor Technology
Topic: Ferrofluid for hub cooling? BS or real?
Replies: 33
Views: 1928

Re: Ferrofluid for hub cooling? BS or real?

Hey Guys, Was just told by a friend that it works wonders but since it sounds too good to be true, I wanted to check here with the experts. So, first of all, they claim that it helps conduct the heat through the air gap that is about 1mm wide between the stator and the magnets which sounds logical....