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<DIV>In a message dated 1/24/2005 7:19:07 AM Eastern Standard Time,
hitesh@salt.ac.za writes:</DIV>
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<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=095360912-24012005>Hi,</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=095360912-24012005></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=095360912-24012005>Now
that we all using high powered digital servo's with incredible holding power
etc - is there any merit in running 2 battery packs, say 1 Ah each as opposed
to 1 high capacity pack thereby eliminating the single point failure ? If
I did want to run 2 packs, is a diode necessary to prevent 1 pack from
possibly charging the other if 1 pack were to go bad ?</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=095360912-24012005></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=095360912-24012005>Cheers,</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=095360912-24012005>Hitesh</SPAN></FONT></DIV></FONT></BLOCKQUOTE></DIV>
<DIV></DIV>
<DIV>Hitesh, a 1500 to 2000ma battery is all you need. There's little
advantage to redundancy unless you are planning to fly more than 5-7 flights
(res) on any given day. But then again, I use NiMH on the airborne and only
Sanyo packs, which have proven extremely reliable for several years now.
As such, a redundant power source isn't really necessary in pattern models
and you can avoid some unnecessary weight build up. </DIV>
<DIV> </DIV>
<DIV>What has been done in large models is to add another battery and
switch harness to an unused channel on the receiver, which provides
adequate redundancy. The extra weight on such models isn't as critical as it is
in pattern models. Both switches "on" at take-off please.</DIV>
<DIV> </DIV>
<DIV>Of course, if you just have to have the extra battery and you have enough
weight margin and room, the above is one way to do it. There are other ways, but
this is simple and reliable.</DIV>
<DIV> </DIV>
<DIV>MattK</DIV></FONT></BODY></HTML>