CR1632. This Eunicell CR1632 3V lithium button cell battery has a nominal capacity of 125mAh 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: 125 mAh. Size: 16mm x 3.2mm. Also replaces: DL1632, BR1632, KL1632, L1632, ECR1632, KCR1632, E-CR1632 & KECR1632