Button Cell Battery, 309/393, 1.5 V

• Silver oxide button batteries provide reliable, long lasting power for your medical devices, watches, calculators, electronics and more.
• Developed to provide reliable performance for digital thermometers, laser pointers, stopwatches, and more.
• Guaranteed for four years in storage, so you can be confident these batteries will be ready when you need them.
• Guaranteed against defects in material and workmanship. Should any device be damaged due to a battery defect, Duracell will repair or replace it at their option.
• From storm season to the holidays, Duracell is the #1 trusted battery brand.