I have tried the USB to cigarette lighter email socket and it would not deliver enough power a 12v car tyre inflator. As I already had a SAE connector wired into the battery for my banner battery conditioner I tried this instead https://www.amazon.co.uk/dp/B091FDHRJD?psc=1&ref=ppx_yo2ov_dt_b_product_details


Works well on my Plus six and protects the car as their is an inline fuse on the banner connector wired into the battery

Model year 23 Plus Six