Varta Longlife Power 9V alkaline battery, also known by the Varta Type 4922 or IEC designation 6LP3146 (or 6LR61).
It is a single-use battery designed for devices with high energy consumption, such as smoke detectors, remote-controlled toys, and radios.
Key specifications:
Type: Alkaline (Zinc-Manganese Dioxide)
Voltage: 9 Volts
Capacity: Approximately 550-580 mAh (milliampere-hours) for high-resistance discharge
Dimensions: Approximately 48.5 mm (height) x 25.5 mm x 16.5 mm
Weight: Approximately 46-50 grams
Origin: Made in Malaysia for Varta Consumer Batteries GmbH & Co. KGaA, Germany