This new 384 coin cell battery from Maxell comes in a 1.55V form that has a capacity of 45mAh, and a discharge current of 50mA. Its composition is silver oxide, and it is filled with two times the energy capacity of a corresponding alkaline button cell. This Maxell is intended for use with low-drain articles like analog watches, and its flat discharge rate gives the battery the ability to sustain a steady voltage until the time the battery is ready for discharge. Maxell's well-known leak-resistant technology holds the battery's liquid core securely inside.