Tenergy 9V Lithium Batteries, 1200Mah Non-Rechargeable Batteries, 10 Years Shelf Life Lithium 9 Volt Batteries, 4 Pack

Longer Runtime 9V - Tenergys 4 Pack 9V Lithium Batteries Offer 2.5 Times More Power Than Traditional 9V Batteries. Provides Enough Power To Last Up To 10-Years As A Backup Battery In Ac-Powered Smoke Detectors. | Low Self-Discharge - Tenergy 9Volt Lithium Battery Features Ultra-Low Self-Discharge Of Only 2% A Year And Are Date Stamped For Freshness. These Batteries Will Provide Power, Even After 10 Years In Proper Storage. | Rounded Fit - Tenergys Non-Rechargeable Batteries 9 Volts Is Slightly Slimmer With Rounded Edges And Corners Ensuring A Wider Fit In 9Volt Electronics. | Wide Temperature Range - Use These Batteries In Your Devices Outdoors Or Inside And Receive Reliable Power Whether Its As Cold As -4