Panasonic BAT001 CR2 Lithium Batteries 4-Pack

The Panasonic BAT001 CR2 Lithium Battery 4-Pack provides a reliable power source for the wide range of devices that depend on the CR2 format. Each battery delivers a steady 3 volts of lithium power, which is critical for devices like compact cameras, laser rangefinders, and tactical flashlights — including the Streamlight TLR-3, TLR-4, and TLR-4 G weapon lights specifically noted by Panasonic for compatibility. The CR2 designation is cross-referenced under several names (KCR2, EL1CR2, DLCR2, CR2R), so these batteries serve as drop-in replacements regardless of which label your device manual uses.

What sets lithium chemistry apart from alkaline alternatives is its combination of high energy density, stable voltage discharge, and exceptional shelf life. Panasonic rates these at 10 years of storage life, meaning you can keep a pack in a drawer or camera bag and trust that they will perform when called upon months or even years later. The 4-pack format gives you enough spares to rotate through a primary device while keeping backups ready. As non-rechargeable cells, they are a straightforward, maintenance-free power option — simply replace and go, with no charger or conditioning cycles to manage.