Type: 9 Volt DC, 4.2 Ah, lithium manganese dioxide, disposable long-life primary cell.

Capacity: Minimum 90 shocks or 3 hours of operating time.

Install-By Date: Battery is labeled with an install-by date of at least five years from date of manufacture.

Standby Life: Four years typical when battery is installed by the install-by date. (Will power the AED in standby state within the specified standby temperature range, assuming one battery insertion test and no defibrillation uses.)