Endless Sphere

Alan B wrote:Perhaps we should have our own ES stickers that rate in more useful units, such as watts per spoke.

I kinda like more 1 Horse Power. But the real one...

Henri_gr wrote:Are batteries more expensive than petrol ?
Now yes.
.

If I would be stupid I would believe you.

Batteries make about 1/3 sometimes 1/2 of tthe cost of an LEV. So its viable to get the most cycles out of the pack. That is possible if you buy high drain cells (15A - 20A) and make the pack 20-30% bigger than your maximum commuting need is. So get the Samsung 30Q or 25R or LG HE4 or HG2 they will ...

Interesting conclusion. Didn't expected that the rate of discharge have so much impact on cycle life. I am curious to see cycle test for a 80% capacity cycle from the beginning till 500 cycle. So every cycle 2000mAh (@ 1C/1D ) charge and discharge from the beginning rather than fixed voltage charge ...

Smooth Criminal M.Jackson -like never seen before.

If you don't laugh watching this than you re not an ebiker!

How about a cycle test with constant capacity rather than voltage?
So instead of charging always from 4.15V to 3.1V.
Charge from near empty to 75% (1875mAh) of the initial capacity 2500mAh .
Than always cycle 1875mAh till 500cycles.

Aren't motorcycle chain, brake pad, maintenance from wear and tear, insurance quite expensive if you do lots of miles? I mean if you do like 20k miles per year, you need to change few times the chain and brakes and do regular checkup? Are these cheap? I often see chain, sprockets, lub and other cos...

I have done some calculations. I estimate that 8,000 watt hour is equivalent to 2.7L of petrol. Cost per 100km electric: $7.73 (estimated) Cost per 100km petrol (cbr125r): $3.90 This is excluding tyres ($1 per 100km) and other components that are either unforeseeable or would affect both electric a...

Yeah but the picture had also could be a HUB-Zilla or Cromotor.... They can deliver same power as the complicated inefficient ICE and look basically the same. (dont tell the cops) :mrgreen: To the Controller: there are new drives not yet for sale sadly. like the from Lebowsky which dont need Hall se...

You missed to bring up the resale value from the both systems. Just take a look at these: http://www.leafmotor.com/hub-motors/8-electric-bike-motor.jpg http://www.dirtbikefix.com/images/dirt-bike-engine.jpg How many moving parts and points of failure you can see? For the gas engine i have no clue (m...

Sometimes only a SUMO can cure the pain.

There is also always the option to buy a (plug in ready) Pedelec in a supermarket like Aldi for dirt cheap.
Its also even compliant with the visions from the politicians on how teh electric-bike has to be....

Maybe it would help to stop discharge at different stages and than after a little resting time measure the voltage under no load?

Maybe it would help to implement a Pedelec law. Because a little workout in the fresh air is always good.

If one electron can be two tahn we can double our 250wh/kg 18650 battery to a 500wh/kg battery !
I love quantum mechanics.

Having been a motorcycle rider for several years, and seeing how lightly some of my erstwhile companions treated their residency on earth, the last thing we need is untrained riders on vehicles fsst eough to get them into trouble, but not fsst enough to get them out of it. I'm not sure if you mean ...

Shoew them this video instead:

Optimums for li-ion type batteries is: Charge to 80% slow Discharge not under 10% The lower the discharge rate the better. E.G. for a 20A rated 25R cell 5A peak would mean very long cycles. Avoid temperatures over 40`C and under 10`C . Use insulation in winter and fans in summer. :mrgreen: When not ...

LOL

Mind-blowing concept.
Tidal power lagoon in Swansea Bay.
Powers 120.000 homes for the next 120 years. And costs 1.000.000.000 USD.


EDIT
155.000 homes
better explanation


http://www.tidallagoonswanseabay.com

I like test 4 because I rarely run my battery down all the way but I always have to decide if I want to charge to 4.1 or 4.15. It would be nice to know if there is a difference between 4.1 and 4.15. But we already know the difference from: Test2: 4.20V >>> 3.10V @ 2.5A (electricbike test voltage +O...

I would prefer to make Test4 to Test6 because the other both are more interesting.
Does electricbike have >=3 fresh batteries left?