Hi-Watt-CR2025-Lithium-Coin-Cell-Battery-Hi-Watt-CR2025-P-The-CR2025-lithium-cell-like-any-lithium-coin-cell-is-rated-at-3-0V-The-four-digits-in-the-battery-designation-actually-give-the-dimensions-of-the-coin-cell-The-first-two-digits-20-mean-that-the-coin-cell-is-20mm-in-diameter-The-last-two-digits-25-mean-that-the-CR2025-cell-is-exactly-2-5mm-high-Lithium-is-the-name-of-a-metal-used-in-the-manufacture-of-the-CR2025-lithium-battery-P-Hi-Watt-CR2025-Lithium-Battery