Silver oxide low drain battery 1.55 V. Watch Battery 344 measures 11.6X3.6mm. Renata 344 is mercury free and has a capacity of 105 mAh. Must purchase in increments of 10.
Interchange: Energizer 344, Renata 344, Varta V344, Rayovac 344, I.E.C SR1136 (SR42)
Renata batteries