Features and Benefits:

• LONGER RUN TIME 9V - Tenergy's 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 DISCHARGE - Low self-discharge of only 2% a year and are date stamped for freshness. 
• DESIGNED FOR BETTER FIT - Tenergy's non-rechargeable batteries 9 volts is slightly slimmer with rounded edges and corners ensuring a perfect fit in any 9volt electronics.
• WIDE TEMPERATURE RANGE - Use these batteries in your devices outdoors or inside and receive power whether it's as cold as -4°F or as hot as 140°F.
• QUALITY- Tested and certified by UL standard. Included with every purchase is free lifetime support from our local team based in California.

Specifications:

• Type: 9V Li/MnO2 battery
• Voltage: 9V
• Capacity:1200 mAh
• Self-discharge: <2% per Year
• Shelf life: 10+ years
• Max. Current: 1000mA
• Dimension: 48*26*17mm
• Operating Temperature: -4 °F ~ 140 °F
• certification: UL, CE