The TL-5920/T-BLISTER is a rechargeable LiSOCl2 lithium battery from Tadiran. It is designed for a wide range of applications, including back-up power for medical, industrial, aerospace, and telecom products. It features an advanced safety system, including a wide range of built-in protection features, as well as a 15-year shelf-life. This battery has a 3.6V/4.8Ah nominal voltage/capacity, and a case temperature range of -40 to 70°C. It is lightweight, affordable, and reliable, making it an excellent choice for long-term standby or backup power needs.