My system is coming up on 5 years old and it's time to replace the batteries. The CR-123A batteries on the SimpliSafe site are $4.99 a piece but I've found Energizer CR-123A batteries on other sites for less than half the cost. I did some online research and only see one Energizer CR-123A battery type, does anyone know if the ones on SimpliSafe are different and worth the extra cost?
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