Hi @Gizzyb , it has been done but not recommended as you may not achieve full required charge

Thanks , I'm just waiting for a proper charger to be installed . Good to know it should work in the interim. 

Hi @Gizzyb,

It seems our forum volunteer has already given some good advice here.

This link might also be helpful if you have any further questions:

So quick update, thanks for your replies. It does work on the granny charger looks like it should work for anybody as long as their car can be connected to the app . Which mine does . However as others have said it's quite slow but it's fast enough to replenish my daily commute @60 miles with an over night charge .  Proper charger going  in today . Thanks all.