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Old 01-06-2007, 04:24 PM   #11
supercub Man
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Skip that part about a separate power supply for the servos. Must have had a brain f...t! I will do as I have done before in my Skybolt and install two switches and charge jacks for two battery packs - one plugged into the receiver battery socket and the other into an empty receiver socket - per Red Scholefields "Parallel Battery Operation" shown here. http://www.rcbatteryclinic.com/parallel.html
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Old 01-06-2007, 06:58 PM   #12
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If the battery is only for the landing light my question is why so big. If it's for landing and used with flaps you could drop back to a 5 cell pack and probably around 1000 mah. That way you are in the ball park and won't burn it out so quick. Check your current by putting an amp meter in line. I think you will be surprized that it does not draw as much as you suspect. I would then use the pack for your servo system and mind you will have to drop a cell or use a regulator.
If you stay with the same pack for your light then as mentioned expect a brighter light and less life and also shock will damage it quicker.
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Old 01-07-2007, 09:08 AM   #13
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Just put 1 or 2 diodes in series with your circuit. Each one drops approx 0.7V
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