yes the red is the pos and the black neutral the other small plug can be used for charging with an appropriate charger but with a balance charger the small plug is to send info to the charger for each individual cell in the battery...so in short red pos. black neutral and small plug for charging and monitoring
lipo batteries have always male plug and the esc and the loader weibliche.mit the cables are a t-plug battery can anschleiß*en a hxt 4mm connector.
I have been buying HXT and T connectors plus the wire from HobbyKing to make up these identical jumpers. Wish they had them a lot earlier as it would have been far simpler to buy them and spend my time flying.