So I'm going to start a bit of a information post regarding electrical connectors. More so for those that do, or are deciding to modify your electrical connectors to suit your personal tastes. Wanting to change your Tamiya plug to something else? Received an RC that has an unfamiliar connector? Etc.. Etc...

Here we will start off with some of the more common electrical connections used in RC and which end is used for what.



The HXT 4.0 plug is one of the better high current connections possible. However you need to be aware that there is no differentiating Battery/Device applications except by matching colour with the appropriate connection type (pin vs socket). All others only connect one way and have a designated colour order.

JST/Tamiya, and Servo connections are all crimped, the others are soldered.

Just an update on connectors if anyone is interested. Continuous Amp ratings:
Deans - 50A
JST/BEC - 5A
Tamiya - 15A
EC3 - 60A
HXT 4.0 - 93A
Traxxas - 100A
XT60 - 60A
Futaba/JR - 3A

A very basic guide to wire current capacity (Continous, no heat load ratings)
12AWG Wire - 30A
14AWG Wire - 20A
16AWG Wire - 10A
18AWG Wire - 7.0A
20AWG Wire - 5.0A
22AWG Wire - 3.0A
24AWG Wire - 2.0A
26AWG Wire - 1.0A
28AWG Wire - 0.7A
30AWG Wire - 0.3A

IR emitter LED's run 0.1A up to 1.0A.


Alternatively you can use this general rule of thumb to quickly find out the maximum current rating of a wire.
Amps = cross sectional area (mm^2) x 25

Guess I'm going a bit overboard changing everything to Traxxas but at least all my batteries will be interchangeable.