Before you buy a new battery you might want to check the one you have, find out why it's not charging if that is the case and determine if it is in fact bad or something else is going on. Unless the battery is completely dead, and receiving nothing from the charging source, your generator should not shut down because of this. Is it not holding a charge, or is it not charging. If it's charging and then loses the charge after shut down, then yes, start with a new battery. Have you checked the water level? Chuck
