First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup

Superior carbon monoxide sensor and dual ionization smoke alarm. Inter-connectable with BRK and First Alert hardwired smoke and carbon monoxide alarms. Easy to install universal mount bracket. Simple to use silence/test button; separate smoke and CO latching alarm indicators. 9-volt battery included; 5-year limited warranty.

Belkin Conserve Valet with Energy-Saving USB Charging Station

Charges up to 4 mobile devices at the same time (USB output). Replaces up to 4 charging bricks with one simple power cord to free up wall outlets. Integrated timer turns off after 4.5 hours of charging time to save energy. Reduce clutter with a designated charging spot and an innovative cord management system.

ULTRA LIFE, 10 year, smoke alarm battery, U9VL-X

Upgrade all your smoke detectors to 10-year life with the only battery warranted for 10 years. Reliable lithium battery keeps life-saving detectors energized for a full 10 years. Eliminate the cost and inconvenience of yearly battery changes in your smoke detectors. Forget all those low battery alarms that always seem to sound in the middle of the night. A must for second homes where smoke detectors can fail when you're not there.

Duracell Coppertop Batteries