Duracell CR2450 Coin Cell 3V Lithium Battery Disposable 1 Per Pack. Offer ideal power supply for high-drain devices, with high energy density and excellent resistance to cold temperatures. Duracell has a tradition of investing in extensive development in features that can help keep children safe, specifically for its lithium coin batteries. Its latest innovation is a bitter coating on the cell that is designed to help prevent accidental ingestions. Duracell also features child secure packaging which makes it nearly impossible to open with bare hands.