A battery is a battery - my concern is almost $400 for a battery.
I KNOW battery technology has improved markedly (tesla anyone?) - and the costs have come DOWN markedly so...
Why are we having to pay $400 for a battery?
AED Superstore Staff Note: While many AED manufacturers strongly suggest purchasing a spare battery for your AED (which doubles the cost), Cardiac Science does not - they offer a full operational replacement warranty for four years after this battery is placed into the Powerheart AED G3.