Very little, it draws about 1/10 of an amp when operating, less than 1/100 amp when off. You can leave it turned on for a few weeks, but you should turn it off if to conserve the battery if the rig is not being used for more than a couple of months.
Very little, it draws about 1/10 of an amp when operating, less than 1/100 amp when off. You can leave it turned on for a few weeks, but you should turn it off if to conserve the battery if the rig is not being used for more than a couple of months.