CR1025. This Eunicell CR1025 3V lithium button cell battery has a nominal capacity of 150mAh 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: 150 mAh. Size: 10mm x 2.5mm. Also replaces: DL1025, BR1025, KL1025, L1025, ECR1025, KCR1025, E-CR1025, KECR1025 & 5033LC