... transmitters &Medical equipments- Memory back-up & Automotive electronics- GPS / GSM system & Intelligent Instruments- Signal lights and the post indicator transferKey Features ... , 2/3AA, AA, CR2, 1/2A, 2/3A, 4/5A, A, C, D, CC, DD, 1/6D, 1/10D, CR-P2, 2CR5 ...