I believe you click the "report" button at the bottom of the post and give an explanation. A moderator can move it for you. Having it in the right forum gets more of the eyes on it that have experience with your car.
Sounds like you want to charge your pip from your garage with no supply there, a much easier although more expensive way would be to put a battery in the garage and charge it from a solar panel or two, you can get off grid solar inverters that will manage the batteries and charge your pip without you having to lift any very heavy batteries. That is provided you can put solar panels on the roof of your garage and afford the $$