The SL-561/PR is an electronic part manufactured by Tadiran. It is a lithium (LTC), 3.6V, 2/3AA,2/3R6, 2 pin, Ø14.7x33.5mm battery. It is a rechargeable power source specifically designed for use in a variety of portable electronics applications such as PDAs, cordless phones, toys, and digital cameras. It is a slim profile design with a long service life and the ability to handle extreme temperature ranges for extended periods of time. It features a built-in temperature monitoring system to ensure optimal performance, providing users with a high level of safety and reliability.