Other than the OEM, You are looking at the only NEW FDA approved battery listed on EBAY! The others are "re-celled" claiming it is a new battery or a China product with inferior parts and not approved by the FDA. Please look at these ads closely so you don't put an inferior product into a device that is intended to save lives.
THE ZP9146Y Powerheart ™ G3 ™ AED & G3 ™ PRO Battery Replaces all Cardiac Science ™ part numbers: 9142 9143 9145 9390E 9390A 9300A 9300E 9146
ZP9146Y 12V 7.5Ah Battery is a Non-Rechargeable, FDA (510k) approved replacement battery for CARDIAC SCIENCE™ 9146. Fits Cardiac Science™ Models: PowerHeart™ AED G3™ , G3™ Plus Automatic Defibrillator, 9142, 9143, 9300A & 9300E, 9146 AED. FDA 510K Clearance Number: K141231. The chemistry is Lithium Sulfur Dioxide(Li-SO2.) This battery has an estimated shelf-life of 5 years from the date of manufacture and 4 years of operational standby life.
12V 7.5Ah AED ZP9146Y Medical Battery SpecificationsVoltage: 12V