JoAnn Willette 17 Joann Willette Stock Photos, High Res Pictures, and Images Getty JoAnn Willette JoAnn Willette APC Backups With Pure Sinewave Output. Safely shut down computer systems and guard connected equipment from surges with the Back UPS Pro BR 1000VA Battery Backup & Surge Protector from APC. The UPS is armed with a total of ten NEMA 5 15R outlets, with six providing surge and backup power and four designed for surge protection only. In the event of a power outage, the UPS comes equipped with an internal battery that delivers up to 600W of power. The battery powered outlets provide up to 3. 7 minutes of use at full load and over one hou