VARTA V625U
The VARTA V625U is a primary button cell battery, i.e., a small disposable cell for equipment requiring 1.5 V in a very compact size. It is listed with the IEC designation LR9 and measures 6.2 mm in height and 16.0 mm in diameter. This makes it suitable for applications where space is limited but stable power delivery is still required.
As an alkaline manganese button cell, it is intended for replacement once the old cell is exhausted. It is not rechargeable. The typical capacity is stated as 150 mAh, which gives a good indication of the amount of energy the cell can provide relative to its size.
VARTA also lists this cell under article number 04626 101 401. This is useful when matching the correct spare part to existing equipment. For customers working with small electronic devices, the size, voltage, and IEC designation are the most important benchmarks.