DUREDAY battery only a 1440 national standards for discharge time is 100 minutes, 7 national standard arrester discharge time is 40 minutes, large capacity, power strong, can high discharge current, discharge time is long, the battery does not contain harmful chemical element, won't cause pollution to the environment. The storage time for up to 18 months. Often used in higher toys, instruments and meters. Flashlight lighting, remote control, electronic scale, etc.