VARTA V397
VARTA V397 is a small silver-oxide button cell battery used where a stable voltage is required in a very compact size. With a nominal voltage of 1.55 V and IEC designation SR59, it is particularly relevant for equipment where space is limited, but where the battery's dimensions and type must still fit precisely.
It is one of the types of button cells chosen when replacing an existing cell with the same designation or one of the cross-referenced variants SR726 and SR726SW. Here, the physical dimensions are crucial, which is why the diameter of 7.9 mm and height of 2.6 mm are important details to know before ordering.
Silver-oxide chemistry is often used in small precision applications because the cell is designed to be space-saving while providing a steady voltage. VARTA specifies the typical capacity at 23 mAh, and the weight is 0.5 g. This makes the battery well-suited as a small energy source in compact devices where large capacity is not required, but rather a correct and compatible cell.
Specifications
- Manufacturer: VARTA
- MPN: 397101111
- IEC designation: SR59
- Chemical type: Silver-oxide button cell
- Nominal voltage: 1.55 V
- Typical capacity: 23 mAh
- Diameter: 7.9 mm
- Height: 2.6 mm
- Weight: 0.5 g
- Cross-references: SR726 / SR726SW
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