"The patented Paslode Fuel Cell with Twist’N’Lock technology has been designed for reliability and greater tool performance. The self locating metering valve can easily be inserted into the tool for either in-can or external metering. Each fuel cell drives a minimum of 1000 brads. Two adaptors are provided within the Impulse Bradder Fuel cell and are suitable for use with a Paslode Impulse TrimMaster Angled and Straight Bradders. New twist 'n' lock technology Fuel cell life - minimum 1000 brads Suitable for both Li-Ion and Ni-Cad impulse bradders"