The ZOLL AED Plus Type 123 Lithium Batteries provide a high-performance, dependable power source designed explicitly to keep public access defibrillators functional during storage and active use. Supplied as a complete matching set of ten individual 3-volt cylindrical cells, these non-rechargeable lithium manganese dioxide batteries work together inside the device to form a reliable 30V power framework. Built to support structural readiness, the chemistry provides exceptional thermal stability and a long backup lifespan, ensuring the automated external defibrillator has the energy required to deliver corrective therapeutic shocks when a sudden cardiac arrest emergency arises.