Panasonic CR2025-4 3V Lithium Coin Battery 4-Pack

The Panasonic CR2025-4 is a four-pack of 3-volt lithium coin cell batteries built to power the small electronics you rely on daily. Whether it's a wristwatch, car key fob, calculator, or medical device like a glucometer, these batteries deliver stable voltage from first use to last. Panasonic's lithium chemistry provides an extremely low self-discharge rate, meaning you can store spares for years without worrying about them going dead on the shelf.

One of the standout features of these cells is their high leak resistance. Coin batteries often sit inside devices for months or years at a time, and a leaking battery can corrode contacts and ruin electronics. Panasonic's construction minimizes that risk, making these a smart choice for devices that don't get frequent battery swaps. The four-pack format is practical — you get spares on hand for when you need them without overpaying for individual blister packs.