ORIGINAL: OhD
ORIGINAL: klhoard
ORIGINAL: RC11
I too use the Tech-Aero set up with two 360 Rhinos. It occured to me that I might just draw from the two flight batts via the balance taps tapping into 2 cells thus eliminating the Rhinos, their weight and charging. Why not?
Pros and cons please....
Thanks,
RC
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Just don't try to run two regulators off the same motor pack, they will have a common ground and the magic smoke will escape. You want a completely separate backup system, both electrically and physically. . .
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What is wrong with a common ground? Seems like you have a common ground as soon as you connect each regulator to the receiver.
Jim
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My original thought was to plug one regulator into one 5S pack (tapping off two cells), and the other regulator into the other 5S pack (tapping two cells off that pack as well) for redundancy.
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The problem is that with the two 5S packs connected in series to run the motor, the regulator's ground wires are now at different voltages from the motor battery packs. Say that you tap off cells 1&2 for the first regulator then 6&7 (first two cells of the second 5S pack) for the other regulator. You now have a 5S voltage differential (21 volts) between the two regulators ground wires that are now connected at your receiver's power bus. The negative side of the regulators aren't isolated, they're straight thru, so something has to give.
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Hope my explanation makes sense. . . If you read down the NSRCA thread, John Gayer already did the te$ting for us . . . .
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