ER9V lithium

Eunicell ER 9V Battery 1200mAH Lithium ER9V Batteries for Smoke Detectors

Specifications:

Model:ER 9V 1200mAH Lithium Non-Rechargeable Battery
Diameter:48.8×17.8×27.5mm
Up to 10-year backup battery in ac-powered Smoke detectors
Low self-discharge rate (less than 1% per year at 25°C).
Applications: smoke detectors,remote control toys, smoke alarms, wireless microphones, multimeter and other electronic instrumentation products