Weatheradio with Alert (120-0240) Power Faxback Doc. # 3708 AC POWER Plug the radio's power cord into a standard AC outlet. BACK-UP BATTERY POWER The radio automatically switches to battery power if AC power fails. Follow these instructions to install a 9-volt battery, such as Radio Shack's Cat. No. 23-553. 1. Remove the battery compartment cover by pressing the tab in the direction of the arrow and lifting up the cover. 2. snap the battery connector over the battery contacts. 3. Place the battery in the battery compartment and replace the battery compartment cover. Caution: Remove the battery if you do not plan to use the radio for a week or more. Weak batteries can leak chemicals and damage the radio. (br/all-12/19/94)