I use 2 to the balance post
THe unmarked one instead of 1 to the charge port
Depending on what radio you have the 1 might just connect straight into the radio.
I have a spektrum (LiFe 6.6V not lipo) and had to mod it a little so I added a female (unmarked) to mine
Hobbyking have all the parts you need.
I could send you a "servo extender" that you can cut and solder yourself or get one locally
or get something like this
and something like this fi you don't take out the battery
