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  1. S

    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...
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    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
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    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...
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    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
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    Custom Giant Dh, Lightning Rods Big Block, Nuvinci N171

    Looks means as can be. Keep up the good work.
  6. S

    New Panasonic Cell ncr18650bd 3200mah

    Has anyone got any BD's yet and tested them at 10A's? Any reliable sources? Cheers Paul
  7. S

    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...
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    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...
  9. S

    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...
  10. S

    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...
  11. S

    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...
  12. S

    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...
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    Ultralight Mosquito Helicopter concept

    Hi All I like this Ultralight Mosquito Helicopter concept on tuvie. http://www.tuvie.com/the-ultra-light-mosquito-helicopter-can-go-through-even-caves/ cheers Paul
  14. S

    Alturn Axial Flux Motors on Kickstarter

    Hi All I came across these Alturn motors on kickstarter. https://www.kickstarter.com/projects/alturn-usa/new-design-pancake-mulitrotor-bldc-for-mulit-copte?ref=category Made me wonder if the 90mm units may be suitable for some mid-drive applications? Cheers Paul
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    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
  16. S

    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
  17. S

    Melbourne EV EXPO Saturday April 13

    Hey all, what's the motor in the TEam Swinburne Formula SAE car?
  18. S

    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.
  19. S

    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. 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...
  20. S

    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...
  21. S

    1kW range extender concept.

    Here's an informative video on the nutating disc motor. http://www.engineeringtv.com/video/Nutating-Disk-Engine-Delivers-H;Engineering-TV-AerospaceDefense Cheers Paul
  22. S

    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...
  23. S

    1kW range extender concept.

    Just found an 8kg 1kW generator for $230 us. It's a 2 stroke. http://www.aliexpress.com/store/product/Smart-Portable-Power-Solution-0-9kW-Ultra-quiet-Digital-Inverter-Mini-Gasoline-Generator-QL1000i-all/118508_1073259255.html
  24. S

    1kW range extender concept.

    Why didn't it work. Also Dogman why do you think the generator will be too heavy? If you take a joby jm1s and reduce its width by 1/6 to under 10mm's and you get 1.37kW nominal at 6000rpm, 0.3kg, over 90% efficiency and the cost I guess would have to be under $400. Remember that you don't even...
  25. S

    1kW range extender concept.

    Lebowski, I found a 1kW Fuel cell http://www.horizonfuelcell.com/#!aerostacks-200w-1kw/c10tm It doesn't have a price listed and I have requested one. Looks like it uses 14litres/min to produce that 1kW though. Thristy! 840 liter tank to run for an hour. By the way I have been reading your...
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