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  1. C

    Helmetcam of jury rig test bike in horse country

    Had mistakenly posted a testing report in photo & video, sorry started a post with video and got sidetracked. Here is a helmetcam video of a ride. 47lwPE_xGik The bike is the same one detailed in the report found here http://endless-sphere.com/forums/viewtopic.php?f=4&t=46545 edited to fix...
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    Test of high performance jury rig-impressive results.

    My test ebike has gone thru three major iterations. It serves as a test bed and as my means of transportation. Take 3: The Bike Frame: Chinese rigid diamond frame steel mountain bike, no front shocks, cheap rim brakes, freebee, relative got it at a yardsale and didn't want it so gave it to me...
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    Refurbished "SLA" with a special surprise inside

    Oddly enough a very wonderful suprise inside. They ain't lead acid! No, as far as I can figure these are AlMg/neutral/Fe2O3. My first was a Deka group 24 I got for my trolling motor. I had modded the motor to the point that it would plane my uncle's stillwater 17 with 4 people on board. The...
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    What actually happened to nickel zinc

    First of all there a lot of things being called nickle zinc. Most can be broken into 3 categories: gen 1: these have conventional separators, normal (slightly impure) zinc, and have a cycle life from 25 to 50 for conventional separators to 100 cycles for plate pocket. most older batteries are...
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    advice on new controller needed, bmc V1 review

    I have a diy setup running a BMC V1 "puma" 400 watt rear geared hub on a comfort cruiser frame, and powered by 36 volt 26 amp hour SLA battery bank. I have not weighed the bike but it is very heavy for an aluminum frame. I weigh over 90kg and the batteries weigh 26 kg in total. I ordered the...
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    A class naming scheme for ebikes similar to other vehicles.

    Among 4 wheel gas or diesel vehicles there are Suv's,vans, station wagons, pickups etc. I think there should be a well defined class naming system for ebikes. There should be a quick one or two word way to establish the difference between a 250 watt pedelec and a 1200 watt moped. I also...
  7. C

    The 12 volt bike to end all 12 volt bikes

    I am contemplating building a low voltage lead acid bike that will be capable of running with the petrol bikes on the blue star/vfw highway (speed limit 65 kilometers per hour, regularly ignored by cars) It will consist of a mountain bike frame, wide medium pressure comfort cruiser tyres and a...
  8. C

    What happened to EVionyx? Where can i buy?

    Evionyx supposedly makes high cycle life electrically rechargeable zn-air batteries. Their flagship product is supposedly a unit that is both electrically and mechanically rechargeable. It can be recharged either in situ or by removing a rack of anodes and placing them into a fast charger (NOT...
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    Strange ignored chemistry: Al-Fe2O3

    I am trying to find more information on aluminum iron secondary batteries. What I do know is that they were first built at Texas A&M university in 1994, funded by the army in order to power long range series hybrid military trucks. I am unsure but to the best of my knowledge they had a...
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