Series connector

[Patrick]

This is made by BrianG on this forum
http://www.scriptasylum.com/rc_speed/_lipo.html
Go down a little bit to the part that says "Battery Pack Wiring".
Click "Use 2 series-connected battery packs" a picture should come up of how you'll want to wire it.
Basically join the positive wire of the first pack to the positive wire on the ESC.
Join the negative wire of the first pack to the positive wire of the second pack.
Join the negative wire of the second pack to the negative wire on the ESC.

Some people (including me) make an adapter to join the two packs together, so you can easily go back to using 1 pack. To do that you'll need 1 female plug and two male plugs (assuming your using a plug with both wires in the same plug eg. deans, tamiya, powerpoles etc)

Oh, and I recommend putting that site in favorites. It comes in handy for a lot of things, especially the top speed estimator part.

[Superbasher]

Thanks for that patrick, it makes it seem pretty simple. that speed calculator looks good, but unfourtunately it doesn't have the internal gear ratio's for a T4, and i don't know what it is.
Matt

[kulangflow]

Originally Posted by Patrick

To do that you'll need 1 female plug and two male plugs (assuming your using a plug with both wires in the same plug eg. deans, tamiya, powerpoles etc)

For the record, you don't need to make an adapter to do series with powerpoles. That's actually the primary reason I use them.

+ and - are genderless, so you can just plug the + on one pack into the - on the other. (This, of course, is a very dangerous characteristic if you're not careful.)

Good times.