Renata CR2450 Watch Battery (10 Pack):

3v lithium 'button' or 'coin' cells are most commonly used in car alarm keyfobs, older organizers such as the Psion, electronic measuring meters and devices, date/time backups in cameras and computers, electric thermometers, Salter weighing scales, calculators, electronic toys, digital watches and clocks and countless more applications.

Features:

Chemical System Li / MnO2
Nominal Voltage 3 V Rated
Capacity 50 mAh
Standard Discharge Current 0.1 mA
Max. Cont. Discharge Current 1.0 mA
Average Weight 1.1 g