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  1. I

    Suggestions for 100A, 15 to 20AH pack

    What would you suggest for a small but safe battery pack that comfortably delivers 100A and has a capacity of 15 to 20AH. Since it will have to be charged at work, outside near building, it needs to be fairly safe. Both DIY and purchased packs are being considered. TIA
  2. I

    GE Battery 40AH 8C LiPo pouch cells; anybody using this

    I got an email from the guy below; wish they were 8C LifePO4 instead, 1. Model: GEB121213222 40AH 8C 2. H*W*L: 12.1*213*222mm 3. Nominal Voltage: 3..7V 4. Nominal Capacity: 40Ah 5. Discharge Cut-off Voltage: 2.75V 6. Standard Charge Voltage: 4.20V 7. Continuous Discharge Rate: 8C 8. Burst...
  3. I

    Denver National Plug-in Day

    Bring your "e-rides" to the South High School (just south of Washington Park) on Sept 28th from 11am to 3pm. I've got one booth with the Denver Electric Vehicle Council, and can get another booth for e-bikes, e-scooters, e- motorcycles if I can get enough folks to bring their rides. I would...
  4. I

    Louisville, CO, USA - PTV Show (cancelled)

    PTV Show - September 14, 2013 The PTV show is an annual event for people and businesses interested in viewing, buying and selling vehicles such as bicycles, electric bicycles, stand-on scooters, in-line skates, and skateboards. The Denver Electric Vehicle Council is a Sponsor of the PTV Show...
  5. I

    Boulder, CO USA -

    If in Colorado, please attend this meeting from 4-6pm at the Boulder Public library on weds August 7th. Info: Public Meeting: Potential electric-assisted bike pilot on multi-use paths As part of the current update to Boulder’s Transportation Master Plan (TMP) , city staff is developing a...
  6. I

    Lazyman's gardening: no weeding, fertilizing, or watering

    I had great success last year using EBs (earthboxes): no weeding or fertilizing required after setup. But my plants grew too big and I was left hand watering them everyday. The reason to go with EBs supposily is that the built in water reservoir lets you skip some days watering; but that...
  7. I

    WX12I3250 50AH pouches??

    Anyone heard of these cells: http://www.ebay.com/itm/NEW-WX12I3250-3-2V-50000mAh-50AH-LiFePO4-Rechagerable-Battery-Big-Capacity-/130905255327 Thanks
  8. I

    May 21 Boulder, CO, help show support for e-bikes

    The Denver Electric Vehicle Council is actively trying to change legislation in Colorado to allow e-bikes on multi-path trails. Efforts started in Colorado Springs with the goal of a state wide change. We recently found out about a similar effort in Boulder county (see below). Getting the...
  9. I

    LiFePO4 memory effect found

    Got this from EVDL list email: http://www.juraforum.de/wissenschaft/memory-effect-now-also-found-in-lithium-ion-batteries-435719 Hmm, what do you think.
  10. I

    It fried; my bulk charger died...

    For two years it took a lot of abuse, rattling loose inside the belly of my e-moto or stuffed inside the top box. Last week I made the mistake of plugging it into a friends garage outlet (built 1928). Came out later to check on the charge and smelt the strong odor of fried electric components...
  11. I

    Bluetooth tire pressure sensor - kick starter project

    It uses bluetooth 4.0 or ANT+ to communicate to iOS or Android device. Pledge of $140 will get two sensors for e-bike. More info: http://www.gizmag.com/btps-bike-tire-pressure-system/25542/ Sound good or better deals avail?
  12. I

    Report: Ten-fold increase in e-scooters by 2018?

    Here is the report: Electric Scooters in Asia Pacific Will Increase Nearly Tenfold from 2012 to 2018, Forecasts Pike Research BOULDER, CO--The difference between electric scooters and electric motorcycles is that the former have a top speed of between 20 and 50 kilometers per hour (kph), while...
  13. I

    What was this guy thinking, Fliz Bike

    Too funny: http://www.gizmag.com/fliz-bike-walking-cycling/23882/
  14. I

    Sept 29th, CRES Solar & Green South Denver Home Tour

    This year CRES is calling for EV owners to showcase their EVs at the participating homes. I thought it would be cool to get some of the e-moto and maybe even e-bike owners to join in. I've offered to show my e-moto at one of the houses. It would be cool if we could get ZEV, Brammo, Zero, and...
  15. I

    U.S. Indepence Day, July 4th

    I saw an interesting idea -- it is to take advantage of the number of July 4th block parties as an opportunity to also demonstrate independence from oil! Invite folks over for a party; leave your: e-bike, e-motorcycle, e-car out prominently displayed as a conservation piece to discuss how more...
  16. I

    U.S. National Plug In Day, Sept 23

    See if you can find a way to participate in this year's event: http://www.pluginamerica.org/calendar/2012-national-plug-day
  17. I

    Battery Power 2012, Denver, CO

    International event to be held September 18-19 in Denver, CO. Here's their announcement: "Battery Power 2012, an international conference highlighting the latest developments and technologies in the battery industry, will be held September 18-19 in Denver, Colorado. This 10th annual event...
  18. I

    AC to DC Circuit Analysis Question

    I have a 240Vac constant current source supplying 32A. I would like to full-wave rectify that to 340Vdc and then run it through my 80Vdc pack for charging. I'm looking for ball-park value as to what the max DC charging current will be. 240Vac * 32A = 7680W input power 7680W/(340Vdc-80Vdc)=...
  19. I

    Making a Bulk Travel Charger (edit)

    I currently have a 9A charger for my motorcycle. J1772 charging stations are popping up everywhere around me, and I would like to take advantage of the two to three times faster charging rate that these 240V stations can provide. Problem is typical 87.6V cutoff, 20-30A chargers are too bulky...
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