SunCase™ 1213NUE SunCase 1213: Portable Power That Means Business The Generator is Dead. Long Live the SunCase. We didnt just build a battery in a lab; we built the SunCase 1213 based on what people actually asked for in the field. We listened to soldiers, emergency management pros, and film crews who were tired of hauling around loud, fume heavy generators that needed constant refueling. The result? A 1. 28kWh power station that is silent, reliable, and tough