PowerUP Ultra Alkaline 9V Batteries (Pack of 4) - Draper 03970, With 20% more capacity than standard alkaline batteries, these multipurpose Draper PowerUP Ultra Alkaline AAA batteries are ideal for high-capacity applications.Designed to be leakproof, the batteries come in three handy pack sizes. Draper 03970 PowerUP Ultra Alkaline AAA Batteries (Pack of 40)