The CR1620 Energizer Lithium Battery is a high-quality coin cell battery with a voltage of 3V and a nominal capacity of 81 mAh. It operates within a temperature range of -30°C to +60°C and is non-rechargeable. This battery is ideal for low drain devices and has a long expiry date, making it a reliable choice for various applications. Produced by Energizer, a trusted brand, this lithium battery is lightweight at 1.3g and features pressure contacts for easy installation. With its superior performance and durability, the CR1620 Energizer Lithium Battery is a dependable power source for your devices.