[NSRCA-discussion] Main battery redundant lead for receiver

[Peter Vogel]

And, of course, with a non-switching BEC off a 10s or even a 5s pack you
would have massive heat issues as it tries to step down the voltage from
18.5 volts to 7.2 or 6 volts, depending on whether you are running an HV or
standard voltage setup, so the regulator would probably need a fan or heat
sink of some sort, which likely negates any weight savings from not running
with a second battery.

Peter+

On Mon, Jan 23, 2012 at 2:30 PM, Scott McHarg <scmcharg at gmail.com> wrote:

> You have to be careful using the BEC, especially from CC because it is a
> switching regulator which cannot be run in parallel.  It's really best not
> to use the BEC and set up a truly separate system.
>
> Scott
>
>
> On Mon, Jan 23, 2012 at 4:28 PM, George Kennie <geobet4evr at gmail.com>wrote:
>
>> Could a CC BEC also be used instead of a reg.? I don't know how much
>> curent is passed by a reg.
>> Sounds good cause it's a bummer trying to solder an extra lead to the
>> Deans.
>>
>> G.
>>
>> On Mon, Jan 23, 2012 at 5:09 PM, Scott McHarg <scmcharg at gmail.com> wrote:
>>
>>> Guys,
>>>    Chris Moon just e-mailed me about some leads that were done at the
>>> factory.  These leads run off your balance leads to a voltage regulator and
>>> allow your main battery pack to be utilized as a redundant receiver
>>> battery.  It is NOT meant to be a primary but it will save 20+ grams if
>>> you're running 2 rx batteries.  You still have to run the 2nd regulator for
>>> true redundancy but you eliminate the 2nd battery.  These leads are factory
>>> made and eliminate the need to make them yourself with the concern about
>>> plugging in to the wrong cell.  I know in my article, I was pretty much
>>> against doing this as a backup but, with Chris having this made at the
>>> factory, he has all but eliminated making a mistake by tying to the wrong
>>> cell.  I have the link that I'll e-mail you off-list or you can just go to
>>> his website.  I don't want to break the NSRCA list rules by advertising for
>>> him even though he advertises with the NSRCA.  The leads are only $3.99
>>> each and are found under the Connectors/Adapters listing.
>>>
>>> Thank,
>>> Scott
>>>
>>> --
>>> *Scott A. McHarg*
>>>
>>>
>>> _______________________________________________
>>> NSRCA-discussion mailing list
>>> NSRCA-discussion at lists.nsrca.org
>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>>>
>>
>>
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>>
>
>
>
> --
> *Scott A. McHarg*
>
>
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>



-- 
Director, Fixed Wing Flight Training
Santa Clara County Model Aircraft Skypark
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