09-23-2009, 05:24 AM
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Senior Member
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Join Date: Sep 2008
Location: Upstate New York
Posts: 560
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1000 miles+ ... @20mph!
Just passed the 1000 mile mark with my 20mph modified Trailz.
I never installed the new wheel that EZip shipped me. I re-spoked my original wheel and have been running that. Also, just received, (better quality?), spokes, 36 of each: 260mm & 258mm, enough to completely re-spoke 2 rear wheels.
Only problem-complaint, is that @ 20mph, even with pedal assist, the OEM battery doesn't last worth crap. Soooooo .... Am finally building 25.9v - 31.2ah Li-ion battery.
The "OEM" battery is a 10ah SLA type.
http://www.ecoforumz.com/electric-bi...tery-care.html.
Unfortunately, the 10ah rating is based on a 20 hour discharge cycle. When discharged in 1 hour, the actual output is barely 6ah!
My 25.9v Li-ion, discharging at the same rate, will last 3 hours+, with an actual output of 30ah! ... 5 times the usable power!!! ... 60% of the weight! ... same size pack!
Range @ 20mph should exceed 25 miles, 15mph should exceed 35 miles without pedal assist! With assist: 40 miles @ 20mph, 70 miles @ 15mph???
At 20mph, and higher, wind resistance becomes the major, power robbing, factor. 
May plan fall tour of Letchworth State (NY) Park.
Just got tracking info: 25.9v charger & PCB won't get here till next Tuesday, CA to NY. I expect to have battery pack built & tested by next weekend.
For more info on "Homemade Li-ion Batteries"
 http://www.ecoforumz.com/electric-bi...tery-ezip.html
Got all excited about this project then got delayed shipping notice and decided to expend some energy telling people about my plans.
Hope you enjoy.
Stay tuned!
__________________
 EZip Engineering 101 
Last edited by DrkAngel; 10-05-2009 at 10:32 AM..
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