Search found 59 matches

by Science Faction
Feb 26 2019 10:13pm
Forum: Battery Technology
Topic: BC168 Balance Charger to 4.35V any luck?
Replies: 2
Views: 248

BC168 Balance Charger to 4.35V any luck?

Hi All Has anyone been able to purchase a BC168 balance charger that can go to 4.35V for HiV LiPO? https://item.taobao.com/item.htm?spm=a230r.1.14.8.472975b9Czv7LM&id=15249151102&ns=1&abbucket=9#detail They seem to be available but I couldn't purchase the one here for some weird reason. I have had 3...
by Science Faction
Jul 04 2016 4:25pm
Forum: Motor Technology
Topic: 75-5 & 75-7 Motors - Looking for Test Engineers
Replies: 57
Views: 8172

Re: 75-5 & 75-7 Motors - Looking for Test Engineers

Oooh, I'd love to do a quad rotor or even an octo with these.
How much do they weigh?
Continous torque? @Amps?
Continous Power in good airflow?
Cheers
Paul
by Science Faction
Jun 30 2016 6:45pm
Forum: Items for Sale - New
Topic: AUS/MELB Sanyo NCR18650GA - All Gone!
Replies: 24
Views: 1912

Re: AUS/MELB 18650s Potential Order

I am keen on 30 cells of the Sanyo NCR18650GA 3500mAh.
Please keep me posted if yours arrive ok and if there are more orders coming up.
Cheers
Paul
by Science Faction
May 20 2016 8:38pm
Forum: Items for Sale - Used
Topic: Giant 2010 00 Glory, 5404, 18FET, 20S15AH $3190 AU
Replies: 2
Views: 736

Giant 2010 00 Glory, 5404, 18FET, 20S15AH $3190 AU

Giant 2010 00 Glory, 5404, 18FET, 20S15AH - For Sale $3190 AUD Byron Bay Australia Built by Asto - Airtime on ES only ridden a handful of times since purchase a year ago for $4200. Crystalite 5404 Beast professionally mounted in proper Dot rated motorbike rim. Indestructible custom steel dropouts. B...
by Science Faction
Feb 10 2016 11:46pm
Forum: Battery Technology
Topic: Samsung 30Q INR18650-30Q 3000mah 15a cell
Replies: 243
Views: 44776

Re: Samsung 30Q INR18650-30Q 3000mah 15a cell

Hi All, Great work and data in this thread. Where are we upto in terms of suppliers? What is the most reliable/cheapest supplier? especially for small units as I am doing a quadcopter project. If anyone has bought them in bulk and wants to sell me 4 for testing I would be most appreciative. Actualy ...
by Science Faction
Feb 08 2016 1:12am
Forum: Large EV General Discussion
Topic: New Axiflux Motor developed in Melbourne, Australia
Replies: 21
Views: 6688

Re: New Axiflux Motor developed in Melbourne, Australia

Hi All,
I spoke with the founder at Axiflux and he told me that they are now working on industrial motors only and do not have any capacity to look at EV's at this time.
Bummer
Paul
by Science Faction
Apr 28 2015 10:16pm
Forum: Battery Technology
Topic: New Panasonic Cell ncr18650bd 3200mah
Replies: 248
Views: 35026

Re: New Panasonic Cell ncr18650bd 3200mah

Has anyone got any BD's yet and tested them at 10A's?
Any reliable sources?
Cheers
Paul
by Science Faction
Nov 17 2014 10:43pm
Forum: Battery Technology
Topic: New Panasonic Cell ncr18650bd 3200mah
Replies: 248
Views: 35026

Re: New Panasonic Cell ncr18650bd 3200mah

Hey RIBA 2233 If you check this link: http://www.candlepowerforums.com/vb/showthread.php?385536-KeepPower-18650-3200mah-(new-Panasonic-NCR18650BE-cell)-quick-review You can see there are 2 different keeppower cells, the one with the BE in it is missing the 20A ultra high drain on its sticker. image....
by Science Faction
Nov 17 2014 10:33am
Forum: Battery Technology
Topic: New Panasonic Cell ncr18650bd 3200mah
Replies: 248
Views: 35026

Re: New Panasonic Cell ncr18650bd 3200mah

I'm confused. Fastech call the BD 10A const http://www.fasttech.com/product/1674900-authentic-panasonic-ncr18650bd-3-7v-3200mah and the BE 3.6A const http://www.fasttech.com/products/1420/10001980/1686800-authentic-panasonic-ncr18650be-3-6-3-7v-3180mah Nearly every reference I have found to the BD h...
by Science Faction
Nov 15 2014 9:16pm
Forum: Battery Technology
Topic: New Panasonic Cell ncr18650bd 3200mah
Replies: 248
Views: 35026

Re: New Panasonic Cell ncr18650bd 3200mah

Hi ch00pakraba and the rest of you mob I haven't bought any yet. I am considering getting 12 panasonic ncr18650bd 3200mah 10A unprotected at $8.85 ea from mountain Electronics. http://www.mtnelectronics.com/index.php?route=product/product&path=59_88&product_id=288 Or maybe the protected ones at $9.9...
by Science Faction
Nov 08 2014 1:44am
Forum: Battery Technology
Topic: New Panasonic Cell ncr18650bd 3200mah
Replies: 248
Views: 35026

Re: New Panasonic Cell ncr18650bd 3200mah

Hi All, Does anyone have a reliable source of these cells? Preferably not at the 3x price LFP secured real BD's for! LFP, can you share any of your test data please? I would love to know what temp they get to at 10A drain. I am looking to use these in a quadrotor project at 3S4P. So i need 24 minimu...
by Science Faction
Oct 27 2014 9:29am
Forum: Battery Technology
Topic: Conductivity improving grease project
Replies: 109
Views: 13169

Re: Conductivity improving grease project

Hi All, Snath I like all the work you've been doing on battery packs and hopefully LFP's cnt non grease works out to improve it even further. Excuse my ignorance with these cylindrical cells, however if you are running something simple like a 3S1P setup aligned axialy would you need more than some o...
by Science Faction
Jul 31 2014 3:00am
Forum: Electric Aircraft
Topic: HeliGraphix two RC copters lift a woman
Replies: 15
Views: 4274

Re: HeliGraphix two RC copters lift a woman

Check out Trek Aero's Springtail. http://www.trekaero.com/Trek_VTOL_Springtail_Vehicles.htm Springtail EFV-4B Preliminary Specifications and Performance Overview Our next model for flight testing, the Springtail EFV-4B is a fourth generation single engine powered-lift (VTOL) personal air vehicle (PA...
by Science Faction
Jun 25 2014 6:40am
Forum: Electric Aircraft
Topic: Ultralight Mosquito Helicopter concept
Replies: 4
Views: 2076

Ultralight Mosquito Helicopter concept

Hi All
I like this Ultralight Mosquito Helicopter concept on tuvie.
http://www.tuvie.com/the-ultra-light-mo ... ven-caves/
cheers
Paul
by Science Faction
Jun 21 2014 7:58am
Forum: E-Bike Non-hub Motor Drives
Topic: Alturn Axial Flux Motors on Kickstarter
Replies: 0
Views: 292

Alturn Axial Flux Motors on Kickstarter

Hi All
I came across these Alturn motors on kickstarter.
https://www.kickstarter.com/projects/al ... f=category
Made me wonder if the 90mm units may be suitable for some mid-drive applications?
Cheers
Paul
by Science Faction
Jun 14 2014 8:44pm
Forum: Motor Technology
Topic: Ultimate lightweight wheel-motor concept
Replies: 381
Views: 34591

Re: Ultimate lightweight wheel-motor concept

Hi guys
I've been off the sphere for a while and returned to check the progress of this most interesting project.
Is there anything to report?
Cheers
Paul
by Science Faction
Apr 01 2014 10:16pm
Forum: E-Bike General Discussion
Topic: 1kW range extender concept.
Replies: 33
Views: 2611

Re: 1kW range extender concept.

MIT are working on a turbine on a chip battery replacer.
Near future estimate 500 WHr/kg upto 1200 WHr/kg long term including fuel.

http://thefutureofthings.com/3063-engine-on-a-chip/

Also this 20mm dia micro gas turbine generator produces 1kW

http://www.powermems.be/gasturbine.html

Cheers
Paul
by Science Faction
Mar 19 2014 12:40am
Forum: E-vents
Topic: Melbourne EV EXPO Saturday April 13
Replies: 25
Views: 3912

Re: Melbourne EV EXPO Saturday April 13

Hey all, what's the motor in the TEam Swinburne Formula SAE car?
by Science Faction
Mar 18 2014 7:11am
Forum: E-Bike General Discussion
Topic: SUITABLE FULL SUSPENSION FRAMES?
Replies: 122
Views: 36457

Re: SUITABLE FULL SUSPENSION FRAMES?

Thanks Samd,
The Bullit and the Trance have HS3540's with upgraded phase wires and bearings,
The glory has a 5403 crystalyte.
by Science Faction
Mar 17 2014 5:08pm
Forum: E-Bike General Discussion
Topic: SUITABLE FULL SUSPENSION FRAMES?
Replies: 122
Views: 36457

Re: SUITABLE FULL SUSPENSION FRAMES?

Hi All, I hadn't seen this thread before now. Just want to show a couple of solutions I came up with for battery mounting to mountain bike frames. image.jpg The centre black bike is a Santa Cruz Bullit, super sturdy single pivot frame. There are two carbon battery boxes that come off the same mould....
by Science Faction
Mar 13 2014 8:15am
Forum: Motor Technology
Topic: Ultimate lightweight wheel-motor concept
Replies: 381
Views: 34591

Re: Ultimate lightweight wheel-motor concept

Absolutely loving this Thread. Miles you are really inspiring me to learn emetor and better understand the intricacies of magnet machines. One question though, as you guys are seeking the ultimate lightweight motor wheel concept: Is 3 phase the ultimate configuration? How about 5 phase like the Falc...
by Science Faction
Mar 12 2014 5:25am
Forum: E-Bike General Discussion
Topic: 1kW range extender concept.
Replies: 33
Views: 2611

Re: 1kW range extender concept.

Here's an informative video on the nutating disc motor.
http://www.engineeringtv.com/video/Nuta ... aceDefense
Cheers
Paul
by Science Faction
Mar 12 2014 4:47am
Forum: E-Bike General Discussion
Topic: 1kW range extender concept.
Replies: 33
Views: 2611

Re: 1kW range extender concept.

Hi All, Just found this info on 5kW apu. http://www.bakerengineeringmfg.com/BEITechnologies/BEITechnologies.aspx 5kW nutating disk motor and generator weighing 16.4lbs or 7.5 kgs At this power density a 1 kW genset would weigh 1.5 kgs. I'm not saying you are likely to get one of these any time soon,...
by Science Faction
Feb 24 2014 12:52am
Forum: E-Bike General Discussion
Topic: 1kW range extender concept.
Replies: 33
Views: 2611

Re: 1kW range extender concept.

Just found an 8kg 1kW generator for $230 us.
It's a 2 stroke.

http://www.aliexpress.com/store/product ... 59255.html