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Old Nov 08, 2003, 12:52 PM
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USA, NY, Rochester
Joined Jan 2003
678 Posts
GWS A-10 with E Tec 1200 2SP1

Are the E tec 1200mah batteries rated @ 5C or 6C? I see both answers on different threads.

GWS says the A-10 EDF 55 motor draws 3.39amp x 2 = 6.78amp.

5C=6 amp which is not enough
6C=7.2amp which works.

Thanks for the info.

Jim
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Old Nov 08, 2003, 01:52 PM
luc
I plant balsa sticks too
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France
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6C is ok. Life duration might be somewhat shorter, but they will handle it.
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Old Nov 08, 2003, 02:09 PM
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Chattanooga, Tennessee, United States
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I've seen 6C as the max, but 4C as the recommended discharge rate if one cares about longevity.

Cheers, Phil
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Old Nov 08, 2003, 11:57 PM
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Hastings, New Zealand
Joined Jan 2001
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Takao Shimizu did life cycle testing on an Etec 1200 2S1P pack(see this thread). After 100 cycles at 8.2A discharge (almost 7C), it was still delivering 96% capacity.

This configuration should suit the GWS A10 well, the only problem being how to get the CG far enough forward. My solution was to build a battery box in the nose. The battery will be loaded through the original hatch (that way I can still use a heavier battery if desired).
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Old Nov 09, 2003, 01:51 AM
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Alberta, Canada
Joined Sep 2001
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I did fly the a-10 with a single etec 1200 pack in the nose (2s1p) but it got quite warmish hot (too hot for my comfort) so I went to 2s2p. I also had to wedge the 2s1p pack as far as physically possible into the nose area for it to balance.

Edit - Now that it is winter I wonder if I should go back to 2s1p as the heat may actually help some
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