I have a tu 740 2 converter that charges for about 30 minutes then drops to 1/2 charging and then dead if I use any lights. Is this dead or something else.
Sorry, tbarnby, can't really make out what you're trying to say. Is 'tu' a brand? If it charges for 30 minutes and goes dead, does that mean it has no output whatever? Have you measured the voltage on the batteries? What lights? House or headlights?