Especially recommended for quartz watches & small calculators where the long & stable discharge characteristics are important. See the Silver Oxide Watch Battery Cross Reference to help identify your battery. In all instances SRxx provides a superior replacement for LRxx e.g. SR44 replaces LR44. Nominal voltage of all types 1.5V. Code Type Dimensions Nominal Weightdia. x h mmcapacity JK33LSR635.8 x 2.110m Ah 0.3g FM36PSR606.8 x 2.112m Ah 0.34g JG83ESR666.8 x 2.620m Ah 0.4g FM33LSR587.9 x 2.116m Ah 0.45g FM35QSR597.9 x 2.623m Ah 0.5g FM30HSR417.9 x 3.630m Ah 0.7g FM32KSR487.9 x 5.458m Ah 1.1g FS76HSR699.5 x 2.125m Ah 0.6g FS75SSR579.5 x 2.634m Ah 0.75g FS74RSR459.5 x 3.652m Ah 1.0g FS73QSR5511.6 x 2.135m Ah 0.9g FM31JSR5411.6 x 3.164m Ah 1.3g FM29GSR4311.6 x 4.2110m Ah 1.8g FM28FSR4411.6 x 5.4150m Ah 2.7g