Varta CR2032 Button Battery, 3V, 20mm Diameter

Various PCB, SMT and wire & connector versions (e.g. with laser welding tags 0.1 mm)
High Capacity for longer running time
Low self-discharge for long life
Wide temperature range (-20 °C up to 70 °C)

Safe & reliable
Applications
alarm system
bicycle computer
blood sugar indicator
car key
car stereo
electronic calculator
electronic database
key lights
medical application
memory back-up (MBU)
OTHERS
real time clock (RTC)
remote control
timer
watch (digital & Analogue)