Mordy, I forgot to answer your question. Yes you can, but you should generally
do it through a BMS (battery management system) that will balance the cells and
prevent overcharging and over discharge.
> On Jun 30, 2017, at 10:32 PM, Bill Babcock <ponobill at gmail.com> wrote:
>
> More realistically: Typical single cell lipo is 3.7V nominal, 4.3 V fully
> charged so four cells in series is nominally 14 to 16. Volts, which makes
> electronic ignition systems much happier than the 12.5 volts of lead acid
> batteries. A typical little battery for a RC model is 5000mah (or 5AH in more
> normal parlance) and it's a little smaller than a pound of butter. While one
> of them might actually crank your motor, five or six is a better bet. I had
> ten handy that I'm no longer using (new drone) so I put them together for
> peyote. 50AH, 1000Amps of cranking current. If I ever draw that my starter
> wire will probably vaporize, but the starter spins briskly. pertronix
> ignition at 6000 rpm draws five amps. So eight to ten hours of running flat
> out. That's the biggest load by far unless you're running an electric water
> pump.
>
> People's bad experience with total loss has to do mostly with lead acid
> batteries. Electronics are generally designed to run at alternator voltage of
> 14V. With typical voltage drop an LA battery might drop to 11V at full load.
> LiPos start with a higher voltage and don't droop as much, so everything
> works better.
>
> Sent from my iPad
>
>
>> Elon? Is that you? Drove one of your cars the other day....nice.
>>
>> Sent from my iPhone
>>
>>
>>> You know, these days I could build a battery that would power any race car
>>> for a couple of weeks and weigh fifteen pounds. Why would I bother charging
>>> it?? It?s 2017. I made a battery recently that lets me weld aluminum. I can
>>> put it in a lunchbox. Alternator, really? Why?
>>>
>>>
>>>>
>>>> What is the size of the shaft on the Denso ??
>>>>
>>>> Curious,
>>>>
>>>> Bob T
>>>> stom make? Thanks
>>>> >_______________________________________
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> Sent: Thu, Jun 29, 2017 3:48 pm
>>>> Subject: Re: [Fot] Oversize alternator pulley source
>>>>
>>>> I'm not sure of the shaft diameter on the Denso
>>>> alternator, but here's a couple of
>>>> possibilities. I think I'm running the first one.
>>>> https://www.summitracing.com/parts/sum-g3969/overview/
>>>> <https://www.summitracing.com/parts/sum-g3969/overview/>
>>>> https://www.summitracing.com/parts/pwm-182/overview/
>>>> <https://www.summitracing.com/parts/pwm-182/overview/>
>>>> https://www.summitracing.com/parts/mor-64800/overview/
>>>> <https://www.summitracing.com/parts/mor-64800/overview/>
>>>>
>>>> basically, search for "alternator pulleys" on www.summitracing.com
>>>> <http://www.summitracing.com/>
>>>>
>>>> Regards, Tony Drews
>>>>
>>>> At 09:20 AM 6/29/2017, John Styduhar via Fot wrote:
>>>> >I'm running a single groove Denso 55A alternator
>>>> >(Lester No. 14684) in my TR racer.? Pulley OD
>>>> >is 2 11/16". Does anyone know where to buy a
>>>> >larger diameter pulley for this unit or will I have to custom make? Thanks
>>>> >_______________________________________________
>>>> >
>>>> >http://www.fot-racing.com <http://www.fot-racing.com/>
>>>> >
>>>> >Donate: http://www.team.net/donate.html <http://www.team.net/donate.html>
>>>> >Archive: http://www.team.net/archive <http://www.team.net/archive>
>>>> >Forums: http://www.team.net/forums <http://www.team.net/forums>
>>>> >Unsubscribe/Manage:
>>>> >http://autox.team.net/mailman/options/fot/tony at tonydrews.com
>>>> ><http://autox.team.net/mailman/options/fot/tony at tonydrews.com>
>>>>
>>>>
>>>> _______________________________________________
>>>>
>>>> http://www.fot-racing.com <http://www.fot-racing.com/>
>>>>
>>>> Donate: http://www.team.net/donate.html <http://www.team.net/donate.html>
>>>> Archive: http://www.team.net/archive <http://www.team.net/archive>
>>>> Forums: http://www.team.net/forums <http://www.team.net/forums>
>>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/robertten1
>>>> at aol.com <http://autox.team.net/mailman/options/fot/robertten1 at
>>>> aol.com>
>>>>
>>>>
>>>> _______________________________________________
>>>>
>>>> http://www.fot-racing.com <http://www.fot-racing.com/>
>>>>
>>>> Donate: http://www.team.net/donate.html <http://www.team.net/donate.html>
>>>> Archive: http://www.team.net/archive <http://www.team.net/archive>
>>>> Forums: http://www.team.net/forums <http://www.team.net/forums>
>>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/bill at
>>>> ponostyle.com <http://autox.team.net/mailman/options/fot/bill at
>>>> ponostyle.com>
>>>>
>>>>
>>>
>>> _______________________________________________
>>>
>>> http://www.fot-racing.com <http://www.fot-racing.com/>
>>>
>>> Donate: http://www.team.net/donate.html <http://www.team.net/donate.html>
>>> Archive: http://www.team.net/archive <http://www.team.net/archive>
>>> Forums: http://www.team.net/forums <http://www.team.net/forums>
>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/explore8 at
>>> outlook.com <http://autox.team.net/mailman/options/fot/explore8 at
>>> outlook.com>
>>>
>>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://autox.team.net/pipermail/fot/attachments/20170704/29bde110/attachment.html>
|