Tenergy 6LR61 9V Alkaline Battery, Non-Rechargeable Battery for Smoke Alarms, Guitar Pickups, Microphones and More, 12 Pack;

Tenergy 9V Alkaline Batteries - 12 batteries per box
Tenergy alkaline batteries deliver outstanding performance and reliability.
These batteries are designed to have long-lasting power for your everyday uses.
Batteries operate reliably in temperatures of -4 to 129 degrees Fahrenheit.
Batteries are date coded to guarantee freshness.

Can be used in:
smoke detector
carbon monoxide detector
guitar pickups
RC toys
and many more!

Voltage: 9V
Weight: 1.3lb/box

WARNING
NON RECHARGEABLE BATTERY! CAN NOT BE CHARGED! ONE-TIME USE ONLY.
Risk of fire. Battery can explore or leak and cause injury if installed backwards, disassembled, charged, crushed or exposed to fire or high temperature.
Do not put the battery into a charger of any kind.
Can not be used with other types of batteries together.