Correction, the second website that Paul listed has 100A/h batteries for $135 each so that lowers the battery cost down to $4000. IMHO $6000 for an ev motorcycle that only has the performance of roughly a 300CC IC bike is a bit much to spend.
On Fri, Feb 17, 2012 at 12:31 PM, Allen Thomas <[email protected]>wrote: > the cost associated with batteries to provide 100 Amp hours at 96V would > be tremendous. Quick check on google it would take 30 of these > http://www.ebay.com/itm/Electric-Vehicle-Battery-CALB-LiFePO4-100Ah-EV-Batteries-4-pack-/170765730402#vi-content > connected > in serial for a total cost of $17,550, Plus hub motor, controller, charger, > and cabling. You are looking at the price of a prius, just to ride a > motorcycle on the highway for an hour. It wouldn't get me to work and back. > > > On Fri, Feb 17, 2012 at 11:27 AM, paul annen <[email protected]>wrote: > >> kurt, i think this is more of what you are looking at? >> http://www.electricmotordepot.com/products/EnerTrac-Hub-Motor-MHM602.html >> >> >> >> On Fri, Feb 17, 2012 at 9:27 AM, paul annen <[email protected]>wrote: >> >>> gerrr it helps if i paste the link >>> http://www.instructables.com/id/Build-Your-Own-ELECTRIC-MOTORCYCLE/ >>> >>> >>> On Fri, Feb 17, 2012 at 9:27 AM, paul annen <[email protected]>wrote: >>> >>>> ironically this was in the next email i opened this morning. i havent >>>> read it yet, but i thought i would post >>>> >>>> >>>> On Fri, Feb 17, 2012 at 9:25 AM, paul annen <[email protected]>wrote: >>>> >>>>> very true, and i also imagined that the reserve battery would also >>>>> function as the starting battery. with a 24v or higher system, i would >>>>> recomend replacing the starter with one made for the higher voltages. >>>>> >>>>> it might make the bike feel totally different, but what about putting >>>>> your hub motor in the front wheel? >>>>> >>>>> >>>>> >>>>> On Thu, Feb 16, 2012 at 12:49 PM, Kurt Nolte <[email protected] >>>>> > wrote: >>>>> >>>>>> I was actually imagining it going the other way, not sure why I >>>>>> didn't make that clearer. I envision the motor pack also being the >>>>>> starting >>>>>> battery, as well as the reserve battery. >>>>>> >>>>>> One or two 12V cells would be devoted as the "stock" battery, and >>>>>> with a little coding one could even let the pack controller use the 12V >>>>>> alternator to recondition cells as life goes on. Any retrofit package for >>>>>> this would likely include a rewound alternator, however. >>>>>> >>>>>> I realize not all bikes have a rear drum hub, but then not all bikes >>>>>> have a chain drive either so that wouldn't be universal either. My target >>>>>> market is still largely drum rears, and it would be easy to swap a drum >>>>>> rear wheel on those with only disc brakes back there; there are many >>>>>> options, factory and aftermarket. >>>>>> >>>>>> Kurt. >>>>>> On Feb 16, 2012 12:35 PM, "paul annen" <[email protected]> wrote: >>>>>> >>>>>>> you are correct that higher volts will require less amps to do the >>>>>>> same work (watts is watts is watts), and i do like the retrofit option, >>>>>>> you >>>>>>> could also fairly easily use that rear break to do >>>>>>> some regenerative functions as well. but not all bikes have the option >>>>>>> of a >>>>>>> rear wheel hub design, you might be better off driving off the existing >>>>>>> chain. this way you could also incorporate it as a chain tensioner. >>>>>>> >>>>>>> are you imagining using the bikes charging system? we all know that >>>>>>> these are weak links in the vintage hondas (another side note was a >>>>>>> thought >>>>>>> to have a small 30amp automotive alt mounted on the swing arm with a >>>>>>> sprocket to bypass the rectifier, spring pull the tension on the alt and >>>>>>> you have an automatic chain tensioner) >>>>>>> >>>>>>> >>>>>>> On Thu, Feb 16, 2012 at 12:25 PM, Kurt Nolte < >>>>>>> [email protected]> wrote: >>>>>>> >>>>>>>> Sounds like a good idea for a Range Extended Battery Electric, >>>>>>>> which I feel is probably where the auto industry is going to head, for >>>>>>>> better or worse. >>>>>>>> >>>>>>>> I like the modular idea, especially the ability to add/subtract and >>>>>>>> hot-swap battery packs. One of my primary ideas would actually be to >>>>>>>> devise >>>>>>>> a "retrofit" package to hybridize most bikes with minimally invasive >>>>>>>> common >>>>>>>> parts. >>>>>>>> >>>>>>>> The core concept its the use of a "hub" or "internal stator" motor >>>>>>>> design, pressed into place of the rear drum brake. This allows for a >>>>>>>> direct >>>>>>>> drive DC design, high torque and the ability to run electric-only for a >>>>>>>> time. >>>>>>>> >>>>>>>> Rear braking would now be electric, using a variable resistor to >>>>>>>> determine braking load, tied to the stock brake pedal. The motor >>>>>>>> controller's speed sensor would allow for ABS functionality without >>>>>>>> additional parts, as a bonus, and the whole motor assembly shouldn't >>>>>>>> add >>>>>>>> more than a pound or two, tops. >>>>>>>> >>>>>>>> Using this, I'd also downsize the engine, generally by a 1/3 but >>>>>>>> obviously dependant on the individual bike. The motor torque added in >>>>>>>> the >>>>>>>> bottom end of the range would allow riders to feel like the engine its >>>>>>>> much >>>>>>>> bigger. >>>>>>>> >>>>>>>> I think that both motor and pack should operate at high voltage, >>>>>>>> preferably 36-72+V. This will allow for smaller, more flexible wires >>>>>>>> and >>>>>>>> also provide a beneficial bump in torque. The pack can still be be >>>>>>>> charged >>>>>>>> by a 12V alternator using the right connections and isolator circuits. >>>>>>>> High >>>>>>>> voltage packs are also better for the controllers, limiting max current >>>>>>>> flow. >>>>>>>> >>>>>>>> That's it from me for now, when I'm on a proper keyboard I'll add >>>>>>>> more. >>>>>>>> >>>>>>>> Kurt >>>>>>>> >>>>>>>> On Feb 16, 2012 10:42 AM, "paul annen" <[email protected]> >>>>>>>> wrote: >>>>>>>> > >>>>>>>> > well, my idea was to use as many stock Honda parts as i could, so >>>>>>>> that i could market it to honda after. i also want to use a 24v system. >>>>>>>> this is to make the charging system easy. motor controller and basic >>>>>>>> battery set on the chassis with modular extra batteries in saddle bags >>>>>>>> and >>>>>>>> a "trunk" with the engine and mobile charger (also modular). my >>>>>>>> engine/mobile charger is about as simple as it gets, small engine (can >>>>>>>> offer diffrent engine sets for gas, diesel, LP.... ) set at a constant >>>>>>>> rpm >>>>>>>> coupled to a 24v automotive alt (yes they make them, mostly for bigger >>>>>>>> trucks). >>>>>>>> > >>>>>>>> > the modular thought is that if your daily commute is short enough >>>>>>>> you dont need the extra weight (and wear) from the engine and >>>>>>>> batteries, >>>>>>>> simply plug it in to charge, but longer commutes the extra batteries >>>>>>>> might >>>>>>>> be needed, for longer trips you will want to have the engine for "on >>>>>>>> the >>>>>>>> road" charging. yes, while cruising you will probably use more power >>>>>>>> then >>>>>>>> the alt can keep up with, but if you stop every so often (and leave the >>>>>>>> charging engine running) you can build charge back up. >>>>>>>> > >>>>>>>> > my first concept was using standard car batteries, (i was 12, cut >>>>>>>> me some slack) now i am thinking that li ion makes a much better >>>>>>>> choice, >>>>>>>> but thats also where the modular design comes in, as battery tech >>>>>>>> improves, >>>>>>>> you can upgrade without scrapping the whole bike. >>>>>>>> > >>>>>>>> > not that ive spent any time thinking about this at all.. comments >>>>>>>> and suggestions are welcome.. >>>>>>>> >>>>>>>> -- >>>>>>>> You received this message because you are subscribed to the Google >>>>>>>> Groups "Nighthawk Motorcycle Lovers!" group. >>>>>>>> To post to this group, send email to >>>>>>>> [email protected]. >>>>>>>> To unsubscribe from this group, send email to >>>>>>>> [email protected]. >>>>>>>> For more options, visit this group at >>>>>>>> http://groups.google.com/group/nighthawk_lovers?hl=en. >>>>>>>> >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Nighthawk Motorcycle Lovers!" group. >>>>>>> To post to this group, send email to >>>>>>> [email protected]. >>>>>>> To unsubscribe from this group, send email to >>>>>>> [email protected]. >>>>>>> For more options, visit this group at >>>>>>> http://groups.google.com/group/nighthawk_lovers?hl=en. >>>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Nighthawk Motorcycle Lovers!" group. >>>>>> To post to this group, send email to >>>>>> [email protected]. >>>>>> To unsubscribe from this group, send email to >>>>>> [email protected]. >>>>>> For more options, visit this group at >>>>>> http://groups.google.com/group/nighthawk_lovers?hl=en. >>>>>> >>>>> >>>>> >>>> >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "Nighthawk Motorcycle Lovers!" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/nighthawk_lovers?hl=en. >> > > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. 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