DIN EN 61960-4 VDE 0510-44:2017-09

This standard specifies performance tests, designations, markings, dimensions and other requirements for coin type secondary lithium cells and batteries for portable applications and backup power supply such as memory backup applications. It covers coin type secondary lithium cells and batteries with a range of chemistries. The objective is to provide the purchasers and users of coint type secondary lithium cells and batteries with a set of criteria with which they can judge the performance of coin type secondary lithium cells and batteries offered by various manufacturers.