Ultralife 9V PP3 Lithium Battery U9VL-J-P supercedes the U9VL or U9VL-J models. These Next Generation Professional Grade long lasting Ultralife 9V lithium batteries are perfect for use in smoke alarms. For a limited time we are offering this battery at extra discount prices and will supply the blister carded version. Packed in inners boxes of 12 and outer cartons of 48. This Ultralife 9V lithium battery has many different part numbers depending on the packaging. This Ultralife 9v lithium battery is exactly the same as U9VL U9VL-J U9VL-J-P U9VLJPX U9VLJPBP U9VL-FP U9VLJPFP.