consumption devices (transistor leak current, etc.) can be expected to last approximately for 6 years, essentially the shelf-life of a new battery. Lithium 9V/PP3 The Lithium PP3 (U9VL-J, U9VL-X, U9VL-FP, U9VL-FP, Li9V & ER9V), is a consumer-replaceable, high energy density battery that can last up to 5 times longer than ordinary