CR2016. This Eunicell CR2016 3V lithium button cell battery has a nominal capacity of 70mAh and is supplied in a pack of five. Coin cell batteries are commonly used in precision engineering tools and automotive remote key fobs as well as many other applications. . 3V lithium button cell battery. Nominal capacity: 70 mAh. Size: 20mm x 1.6mm. Also replaces: DL2016, ECR2016, FA, SBT11, BR2016, 208-202, 208-204, 208-206, DL2016B, BR2016-1W, CR2016-1W, KCR2016, L10, LM2016 & LF1/4V