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  1. L

    How many of you have your head/tail lights hardwired?

    After much consideration, I think I'll stick with the AA powered headlights and AAA powered tail lights. I got my wife a real nice headlight with a 4 AA NiMH rechargeable battery pack. By the time I got a new light for myself, I realized that carrying a couple extra AAs and replacing the...
  2. L

    How do you carry groceries on your ebike?

    I use large "paperboy" baskets since I have a triangle mount battery. The cloth trunk bag I have mounted on top is a good place to put bread or eggs. 40 lbs. is about the limit, otherwise when I hop off the seat at a stop, the handlebars start to rise on their own. :D
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    3d nanostructure for battery cathodes

    "Researchers at the University of Illinois, Urbana-Champaign have developed a 3d nanostructure for battery cathodes that permits far faster charging and discharging without sacrificing energy storage capacity. " <snip> "Braun’s group have demonstrated battery electrodes that can charge or...
  4. L

    48v 500w versus 350w

    Correct on both points. You may wish to look at the simulator at http://ebikes.ca/simulator/. Even if you can't find a motor to match your characteristics, you can play with the parameters like the throttle setting. The part about max efficiency at 80% will be obvious.
  5. L

    Cycle anylyst v 2

    Was that 12 x 12 Ah SLAs? Doesn't that weigh about 85 lbs? That could be part of the problem. The batteries are adding about 40% to the system weight. That will make getting up a steep ramp more challenging. Can you make the ramp longer? But as mentioned above, it is mostly the 5 amp...
  6. L

    Heinzmann 36v motor + 24v battery

    It might work, or it might not. I don't think you need to worry about damage. You would possibly if you were using a 36V battery on a 24V system. The reason it might not work is because some controllers build in low voltage protection, so the Lithium batteries will not be draw down too...
  7. L

    Bike frame with batteries inside?

    The only ones I have seen are for pre-built e-bikes. I think your best solution might be the 36V 10Ah Ampedbikes battery http://ampedbikes.com/tubebattery.html. Really slick looking with a lock, so you can leave it on the frame while shopping or take it with you. It mounts to the bottle...
  8. L

    Grim News on the Oil Front!

    This is a very important concept. It resembles what happened to the whaling industry that supplied lamp oil before the development of kerosene. They didn't run out of whales, but the distance they had to travel to get them got longer and longer. IIRC, oil has plateaued already, but...
  9. L

    Frame Panneirs? Anyone tried some?

    Got one like it made of Nylon. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280350380174&ssPageName=STRK:MEWAX:IT#ht_3026wt_1139 It looked a lot smaller in real life than in the picture, but it is outstanding when it works. Makes a good camera holster or snack bin. Less drag than...
  10. L

    Got my first EV grin tonight

    Congratulations! :mrgreen: Keep on grinning! :D
  11. L

    Manufacturers/Dealers to Gravitate Towards

    I compiled a list of ebike kit supplier: http://eebikes.net/kits.html Most of the major ones are in there. It shows prices, weights, power ratings and links to provider.
  12. L

    Brushless Geared hubmotors: BIG list & details

    The link given above for my list of ebike kit providers does not work since my ISP moved the site directory. I finally broke down and got a web domain: http://eebikes.net/. The kits table is at: http://eebikes.net/kits.html. I updated the links and prices, but I am probably missing a few.
  13. L

    E-bike Hub (or otherwise) Motors - Where to buy them

    I am proud to announce that my list of ebike kits has been moved to: http://eebikes.net/kits.html under the general title of Electrically Enhanced Bikes, thus the URL eebikes.net. I like the term "Enhanced" in this context rather than "Assist". :mrgreen: I updated the information just...
  14. L

    brushless motor help!

    You mean this kit: http://flexitron.diytrade.com/sdp/194986/4/pd-699352/2173961.html#normal_img This one looks like the same thing: http://www.werelectrified.com/BD24-E-Bike-Kit-p/bd24%20kit.htm but that one is brushed, and it looks like you have a hall connector plug from a brushless motor...
  15. L

    Suntour Forks

    They are generally considered entry level. RockShox, Manitou, and Marzocchi, (I think I got those right in ascending order), are higher regarded names. You see Suntour on entry Schwinns, Specialized and Treks. They do OK on roads with potholes and less demanding mountain bike trails. It...
  16. L

    Schwinn Tailwind Electric Bike

    About the size of the battery, you probably heard about a previous model. IIRC, the battery on the Schwinn that my wife bought in '08 was 24V 20Ah polymer battery. I say my wife bought even though I paid for it since she picked it out. She didn't want me to build one for her, go figure. She...
  17. L

    Poll: What size LiFePO4 packs are best?

    I'm looking at a rear wheel drive kit, and I am trying to avoid a rear rack battery mount if at all possible. Rack mounts are great for front hubs, but with a rear hub, it shifts the weight too far to the rear. I want to do this on a standard bike, so the triangle is about the only logical...
  18. L

    New potential ebike battery product development

    Lower Price would be great! :) Actually $1K for a 48V/15Ah would be close to the current market value for Lithium batteries. Not all ebikes can use a 48V battery. Most of the ones sold right now specify 36V, and overvolting tolerance varies. My 8yo bike and the low end zips use...
  19. L

    Blue and Yellow ebike

    I ran across this bike on eBay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=7247799189 The color is pretty obnoxious, but I can't figure how they are offering a rear hub motor, 3 SLAs, a bike and all those flutes and whistles for $250. The shipping is almost as...
  20. L

    Schwinn Tailwind from Dorel for 2009

    24V/4.2Ah battery,180 watts of continuous power or 250 watts at peak power, front hub motor, $3,199.99(US) That's not a bike, it's a joke!
  21. L

    Observed Voltage While Accelerating

    Sounds like a false reading from your multimeter. On my digital V-Ohm meter, and probably most others, the voltage is determined by comparing it to a reference voltage provided by the 9V battery. When the 9V starts to lose voltage everything starts reading high. I don't see how a Wally...
  22. L

    Brushless Geared hubmotors: BIG list & details

    Darn! That is the motor on my wife's Schwinn. She just got it back from the shop. I have seen two threads on other forums about this motor: http://www.pedelecs.co.uk/forum/electric-bicycles/1071-kits.html http://www.bikeforums.net/archive/index.php/t-332372.html
  23. L

    Brushless Geared hubmotors: BIG list & details

    You didn't give a link. I believe the Tongxin motor was branded the "Nano". http://www.nano-motor.co.uk/nanomotor.php Thou technically it is not "geared", it has rollers that make it lighter and quieter, but the same basic idea. I put all the information on bike kits that I have been...
  24. L

    Mixing Batteries

    I remember a standard caveat about not mixing batteries of different types in most devices. I am not real sure about why this is not a good idea in all cases, but I can guess as some of the concerns. Anyway, it would be really advantageous to use on an ebike. For instance, one could mount an...
  25. L

    E-bike Hub (or otherwise) Motors - Where to buy them

    I have been collection so much info on e-bike kits that I had to put it in talbes: http://home.roadrunner.com/~LFAIRBAN/Electric%20Bike%20Kits.html If you go quick, you can be one of the first ten people to visit the site.
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