Shop › LIFEPAK CR2 Battery Image 1 of 1 LIFEPAK CR2 Battery $341.00 The CR2 replacement battery is a lithium battery with a 4-year lifespan, as stated by the manufacturer. Add To Cart Added! The CR2 replacement battery is a lithium battery with a 4-year lifespan, as stated by the manufacturer. You Might Also Like Defibtech Lifeline AED from $1,523.00 Lifepak CR2 AED from $1,411.00 HeartStart Onsite Pediatric Pads $139.00 Cardiac Science G5 Battery from $285.00 Defibtech View Adult Pads $85.54