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  1. M

    a123 anr26650m1a

    I bought some of these cells, but they didnt come with tabs attached. Does anyone know where in florida i might be able to get tabs attached? I tried batteries plus and they dont do lithium ion only primary lithium chemistries.
  2. M

    gaia ltc

    http://www.gaia-akku.com/en.html so anyone manage to contact them or know a reseller? emailed, but so far no responce - hoping this isnt another company who only deals with manufacturers
  3. M

    Hipower cells

    Anyone here have hipower lithium iron phosphate cylindrical cells? If so, care to share your thoughts on them?
  4. M

    closed loop sinusoidal current control

    So, ive been looking for a controller that does this and im not really sure which ones do or not. The kelly controllers listed as recommended for the PMAC 0913 motenergy motor say they do a control loop but dont say if its closed loop or open loop. From an article ive read it seems as though you...
  5. M

    lithium iron phosphate shelf life

    So does anyone here have some lithium iron phosphate cells that they tested the capacity of 2-3 years ago that could redo the tests now to see how much of their capacity was lost? Trying to find out the average capacity loss per year. Lithium cobalt for example loses capacity depending on...
  6. M

    Heinzmann SL-EC 180 Type 22B Brushless motor

    these look neat; cant find any sellers or graphs for efficiency etc though; but a water cooled bldc oooo
  7. M

    Motor efficiency

    Im a bit confused as to the efficiency curve; your theory says max power should be at 50% efficiency, but i guess i dont understand the graphs for certain motors then because according to the pmac-ds graphic http://www.electricmotorsport.com/store/pdf-downloads/PMAC-DS.pdf i found here, it looks...
  8. M

    emerging battery technology

    anyone heard of the ultrabattery? http://www.alabc.org/research-areas http://www.axionpower.com/profiles/investor/fullpage.asp?f=1&BzID=1933&to=cp&Nav=0&LangID=1&s=0&ID=10298 or maybe lead acid/carbon http://www.fireflyenergy.com/index.php?option=com_content&task=view&id=204&Itemid=81 so many...
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