I’m having trouble charging it with my cigarette lighter adapter?
More often than not the issue is that the cigarette lighter in the vehicle is not working.
Sometimes this is from a blown fuse in the vehicle or it’s a lighter port that is only powered when the vehicle is running.
In rare cases, some cigarette lighter ports in vehicles simply do not put out enough voltage to charge the jump starter.
This is rare and usually only the case when the vehicle is not running and the vehicle battery is low.