Ultralife 9V Lithium 1200MAH Battery (U9VL-6P Unjacketed- Same size as regular alkaline).  You will now receive the OmniCell Brand which has 50 mAh more than the Ultralife but have the same size as the Ultralife.  Plastic case in foil pouch. 6/box 48 per carton. Bulk packaging of 100 per case in individual foil pack. Ultralife 9V Lithium battery. This is the 'Unjacketed' model. This battery can be used in all types of applications including cordless microphones. One of the advantages of using a 9V Lithium battery versus an Alkaline battery is that a Lithium battery handles varying temperature ranges much better than an Alkaline battery. In addition a 9V Lithium battery stored at room temperature will give you up to a 10 year shelf life!! CAUTION: Never touch the connectors at the top of one battery to that of another; the battery will short out and will be unusable.