Zoll AED Plus takes Duracell Type 123 Lithium Batteries

packaged in a set of 10 batteries

5 year expiration date from date installed

10 year shelf life

redundant circuitry; when on set of 5 batteries fail, te other ffive are there for backup

not recommened to use generic or off brand batteries in Zoll AED Plus; may result in longer defribrillator charging times than those required during emergency situations