Which connectors ?

[Martinst]

Before I start I'll apologise in advance if this question has been asked a thousand times before, but I did a quick search and has no joy.

What are the best / commonly used connectors for batteries etc. I used to use some black and red retangular connectors that slid together years ago, but not sure if these are still doing the rounds ??

Any help would be appreciated, as I'd like to get it right from the start with a new car, and the model shop near me ( Isle of wight ) is rubbish and only really deals with nitro stuff.

Many thanks !!

Oh and any links to suppliers would be great !