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Many R/C enthusiasts find Battery and/or Motor Connectors to be a very convenient way to avoid a lot of the soldering and de-soldering that is necessary when hard wiring is used. If you change motors often or you want to be able to quickly and easily change battery packs without having to de-solder, then you should use a good, high quality, low-resistance set of connectors on the motor and/or battery wires. Many people will use a combination of hard wiring and connectors by soldering the motor wires directly to the motor, and installing connectors on the battery wires.
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Several
Common Connectors
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A. Bullet Connector (from Esc)
B. Bullet Connector (from motor) C. JST/Tamiya Connectors (male and female) D. Deans Ultra Connectors (male and female)
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When choosing connectors, it is important that they have low resistance and that the physical design of the connector makes it impossible for it to be plugged in backwards. Bullet and JST/Tamiya-type connectors are fine for Sport level setups, but higher-end racing requires a more efficient connector--such as Deans Ultra or Lightspeed type connectors.
When you use connectors that have both male and female components, then you should solder the connector's male side to the speed control's battery wires and the female side to the wires that are attached to the battery. This will prevent the exposed ends on the male part from shorting the battery pack when the pack is unplugged from the speed control.
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A. ESC's Battery Wire Connector B. ESC's Motor Wire Connector C. ESC Battery Negative. D. ESC Battery Positive. E. ESC's Motor Negative. |
If you are also going to use connectors on the motor wires along with battery connectors, then you should solder the connector's female side to the speed control's motor wires and the male side to the wires coming from the motor. This will prevent accidental cross-connection (i.e. plugging the battery into the ESC's motor wires, and the motor into the ESC's battery wires).
Be sure and visit our How To Make Perfect Solder Joints page for tips on: Preparing wires for soldering, Splicing wires, and Soldering wires to the Cyclone or Atom's solder posts.