Anyone think $120.00 USD is a good price for 14.8V X 10Ah Lithium Polymer battery pack (BMS is included), Charger is $55.00. No idea how basic the BMS is till...
Thanks for putting the Math on the chalkboard, Dave C. I was explaining that it gets even worse as the wattage lost becomes Heat. If the conductors could be...
... wire to the ... I was looking at the photographs: <http://www.industrialliquidators.com/wesell/evwarrior.html> It looks like the wire is more than 10...
... wrote: I also own a couple ... day the old ... they get ... belt to ... probably ... curiosity and ... It seems you are noticing the advantages of...
... down a ... get off and ... perspiration…..then ... down the ... scenery and ... The hills I am wanting to challenge with regen are steep enough that no...
... More strands are better for skin effect and flexibility and durability of the wire. Skin effect comes into play at high frequency, but 20 KHz (typically)...
You're right. Don't expect the 750 motor (at 36 volts) to be 750 watts at 48 volts. It will be more. The power will increase, but in a way that will be...
TERMS OF SERVICE file for Power-Assist 1. Topics DIRECTLY related to the use and implementation of power-assistance of primarily human-powered vehicles are...
power-assist@yahoogro...
Dec 1, 2004 3:55 pm
30804
Quantification is important- thank you Dave. Doesn't the drop of voltage vary with the input voltage ie Is there not less loss on a specific gauge in higher...
Sean, The unit I got from Kenny screws on the threads of my hub. The calipers must be bolted onto a fixture welded to your frame. You will have to screw...
FWI High Frequency the skin effect causes the current to flow on the surface of the conductor instead of the center so that IF you have a bunch of strands...
The voltage drop across a given size and length of wire varies proportional to the current (Ohm's law E=I*R). What varies proportional to the input voltage is...
In numerous e-bikes over the past 3 years, I have used mostly 10 gauge stranded house wire, since I had a big pile of it. IT works great for short runs, which...
Nope definitely 10 gauge. Even the crimp on connectors used are the standard yellow coded 10 gauge crimp on connectors. What does help tremendously to ensure...
... Savvy biz types might sell regen as a feature, but as a rider, I don't actually want it. The inefficiencies in trying to recover any appreciable amount of ...
http://www.easyracers.com/gardner.htm Can't believe this got past me. Gardner Martin, originator of the Tour Easy, Gold Rush and other variants of the CLWB...
... Sounds like you are in search of a hill that will justify regen. Why not just admit that regen is a fun toy to play with, and leave it at that? Fact is,...
... To a first approximation, no. For a given amperage, Voltage drop through a wire is the same regardless of voltage. However, the "percentage" voltage drop...
Think it's time to clarify a few things... Battery energy is wasted as Kinetic energy Potential energy Rolling resistance Windage IF you ignore windage and...
4QD-Electronics
electronics@...
Dec 1, 2004 11:01 pm
30818
In article <5.2.1.1.0.20041125061100.00c3b690@...>, ... [snip] As it happens, we are currently working on just that - but it's a car, rather than...
4QD-Electronics
electronics@...
Dec 1, 2004 11:01 pm
30819
In article <cnl5m0+rv5q@eGroups.com>, ... EH? Please explain how the body diode, in regen mode, can become a rectifier? This will only work if you pedal faster...
4QD-Electronics
electronics@...
Dec 1, 2004 11:02 pm
30820
In article <BAY16-F4F9DCB6114B80D093C38CB9C20@...>, ... [Snip] Probably because you are pedalling faster than the machine's design top speed (and maynbe...
4QD-Electronics
electronics@...
Dec 1, 2004 11:02 pm
30821
Its still mainly a question of pricing, as the last percents of efficiency is rather expencive most users are willing to compromise. As for my self, ill like...
Talk of hub motors... Can a total bike/rider of 240lbs go 6mph up a 10% grade for 2 miles without letting the smoke out? What is the steepest grade you can...
Hello Christian, Is your store almost all set for the grand opening this Saturday? http://www.voltagecycles.com "Our new address is 4346 Main St (Main and...
... From: "4QD-Electronics" <electronics@...> To: <power-assist@yahoogroups.com> Sent: Wednesday, December 01, 2004 10:45 AM Subject: [power-assist]...
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