Part of Varta's premium range, these batteries have been manufactured using innovative ultra-alkaline technology, making them suitable for high-drain devices, even those with changing energy requirements. This Varta Longlife Max Power 9V battery is comparable with alternatives found in 'MaxPlus' and 'Ultra' ranges offered by other well-known brands, making this a cost-effective option. Provided in a pack of one 9V battery, also known by the size codes PP3 and 6LR6, it is ideal for use in applications such as smoke and carbon monoxide alarms, as well as in a range of security devices.