SurePower Defibrillator Battery System SurePower System provides unprecedented cost-effective defibrillator battery management Clinicians need to be sure batteries that power defibrillators will work when needed. Defibrillator batteries are often replaced unnecessarily to ensure dependable performance because of the difficulty of ensuring the battery's condition. The ZOLL® SurePower™ System brings clinicians the confidence that batteries will meet user demands and removes the uncertainty that drives costly maintenance practices. Eliminates guesswork with clear run time indicators Reduces costly battery replacements Automates testing and calibration on the battery Runtime Indicator eliminates guesswork Assists with planning process for future defibrillator battery needs SurePower Battery Pack The lithium ion chemistry of this battery keeps pace with the growing demands of today's defibrillators. The SurePower battery works with the R Series®, the E Series®, and the AED Pro®. The SurePower II works with the X Series®, the Propaq® M, and the Propaq MD. Longer life cycles and better capacity retention. Eliminates guesswork by indicating runtime instead of non-specific state of charge. SurePower Charger Station The SurePower Charger Station is the cornerstone of this innovative maintenance system. With the simple exchange of SurePower or SurePower II batteries in and out of the charger, calibration is automated and history of use is recorded. Single-bay and four-bay configurations are available. Icon-driven interface reports state of batteries. Charges full range of ZOLL defibrillator batteries: SurePower, SurePower II, 4410, 4410 Smart, 4410 SmartReady, and XL batteries. Designed to accommodate future chemistry variants.