bullet connectors

[suicideneil]

If you do spill some solder on the outside of the bukllets when soldering them up with wires etc, a small metal file works wonders to remove the excess- very easy as solder is softer than *rude joke here*

If only they made square bullets, then you couldnt accidently plug them in wrong if you had one square and one round one on your battery leads (square peg > round hole and all that).