I have just put a new battery in and noticed this electrical connector, do you know what it is for ?
Cheers.
It would appear no one knows! 
I’m gonna go with flux capacitor 
My guess is its to do with federal cars only
Might be worth asking the supplying dealer Pete? But as suggested above Lotus may use one wiring loom for all markets??
could be for the battery isolator on a cup car
Yep might be Muu
I was wondering if it could be for an accusump
I think the wiring for my accusump disappeared over the RH wheel arch?
Did you ever identify this? 
No not yet
Is it on the wiring diagram?
If there is a red/orange wire in there, its probably for the side marker lights on Federal cars. See if one goes live with the lights on?
yup…recon that will be it…very easy to check as John says above.