i used to recommend using a power strip (not just an extension cord), but I have noticed recently that the scooter companies are recommending against doing anything that is not directly plugging the charging cord into the wall.If you end up fitting them in and using extension cords (can you use them with a scooter? I don't know) bring some blue painters tape with you and use that to tape down the cords so it isn't a hazard. The tale is light and removes without damaging.