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  1. AndyH

    Ride for Renewables

    Sep 2010 - Jan 2011 Boulder to DC via ebike http://www.climatecrisissolutions.com./bike.htm
  2. AndyH

    Olevin Power- Enerland - A123 from HobbyKing?

    HobbyKing sez: They're marked $19.50 each, but they're $7.99 (or less?) in the shopping cart. http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=16575 Are these the real deal?
  3. AndyH

    Pre-Assembled CellLog CMS Options

    http://www.endless-sphere.com/forums/viewtopic.php?f=14&t=17168&start=300 I've finished my first 6S CellLog-based CMS and already have a number of requests for pre-assembled versions. What I'd like to find out is what configuration to concentrate on. Please select the number of channels and...
  4. AndyH

    Battery Testing Data - Reports from the Road

    This is a response to an excellent suggestion by Adam/Ahambone in another thread. While there are other threads where single cells are examined, maybe this can become a somewhat central place to put pack performance data. This might give us a pool of data to compare/contrast different battery...
  5. AndyH

    Prius Acceleration Hoax?!

    Forbes Magazine 12Mar10 Toyota Hybrid Horror Hoax Michael Fumento, 03.12.10, 01:37 PM EST Exploring an overblown media frenzy. "On the very day Toyota was making a high-profile defense of its cars, one of them was speeding out of control," said CBS News--and a vast number of other media...
  6. AndyH

    "First BMS" -- Really?!

    http://www.sae.org/mags/aei/ENRG/product/7476 14 Jan 2010 "Denso has developed its first battery-monitoring unit for lithium-ion batteries. It features a newly developed, simple, low-cost voltage-control circuit. Installed in the Toyota Prius Plug-in Hybrid introduced at the end of 2009, it...
  7. AndyH

    Progress Report for Energy Storage Research and Development

    The U.S. Department of Energy's fiscal year 2008 Report for Energy Storage Research and Development is out. There's a fair amount of info on lithium technologies inside. http://www1.eere.energy.gov/vehiclesandfuels/pdfs/program/2008_energy_storage.pdf
  8. AndyH

    Thunder Sky + Fechter/Goodrum BMS + PakTrakr + Zaurus = ???

    This morning's quiz is: What do you get when you combine a 21-cell pack of 60Ah Thunder Sky cells, a Fechter/Goodrum BMS kit, a PakTrakr, a Sharp Zaurus, and an assortment of wire, solder, and shrink tubing? Geek Art! - a fusion of solder, flux, matches on shrink tube, colorful squigglies...
  9. AndyH

    Headway Cell - A Look Inside

    In the interest of science (or possibly just the need to take a perfectly good device apart) I present the following look inside a new screw-terminal Headway cell. The cell can is rolled-over the end and no match for a pneumatic cut-off wheel. There's a plastic seal around the end cap that...
  10. AndyH

    PSI / YESA 40138 LiFePO4 Cell Test Data

    Here's a quick link to my current round of cell testing. I'm using a CBAII, the partner 10X amplifier, a LaMantia analyzer, and a dozen or so VoltPhreak chargers. The cells are C-LiFePO4 40138 from Yesa http://www.yesa.com.cn/product_cells.asp?lb=2&id=2 I've started with fresh cells and...
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