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Aug 10, 2011, 10:22 AM
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Turnigy/FlySky battery reverse polarity


Turnigy/FlySky transmitter is equipped with 3 pin battery socket.
Be careful. Center pin is positive while both ends are grounded ( - + - )which is very stupid idea. Unused end pin should not be grounded but open.

If you use two pin plug ( - + ) and plug it into wrong side, it will short. That is how I ruined my TX. Use the orignial 3 pin plug which came with battery box.
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Nov 25, 2011, 07:19 AM
B12
B12
Registered User
So if I am using the servo type connector (=futaba type?) of the Hobbyking transmitter life-battery, it is one and the same which way I connect it?

It has positive in the center pin like servos, negative in one side and the other empty.

It is not the same type as the original but it fits just fine because the pin spacing and size is correct.
Nov 25, 2011, 09:00 AM
60 years of RC flying
Daedalus66's Avatar
Quote:
Originally Posted by B12 View Post
So if I am using the servo type connector (=futaba type?) of the Hobbyking transmitter life-battery, it is one and the same which way I connect it?

It has positive in the center pin like servos, negative in one side and the other empty.

It is not the same type as the original but it fits just fine because the pin spacing and size is correct.
I would not assume that at all. Are you SURE the third pin on the circuit board is not connected? If it's connected to positive you'll cook the battery. The only safe way is to plug it in the right way round.
Nov 25, 2011, 01:52 PM
B12
B12
Registered User
Quote:
Originally Posted by Daedalus66 View Post
I would not assume that at all. Are you SURE the third pin on the circuit board is not connected? If it's connected to positive you'll cook the battery. The only safe way is to plug it in the right way round.

Assuming John Kim is right with the -+- pin order of the radio connector, it would be 100% safe to connect the battery servo connector (-+0) any way you like without issues.

Not verified though. I have only connected it the same as stock ie black to left.
Nov 26, 2011, 03:36 PM
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Originally Posted by B12 View Post
Assuming John Kim is right with the -+- pin order of the radio connector, it would be 100% safe to connect the battery servo connector (-+0) any way you like without issues.

Not verified though. I have only connected it the same as stock ie black to left.
Servo plug (3 pins) should be OK as long as the center pin is positive and size fits.


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