CR123A Batteries (2) CW-BBCProducts Replacement batteries for Cartell sensor pucks. Batteries have a 1-3 year life span. Related Add-ons Sounder CW-SOU $202.00 Add to cart Dual Purpose Wireless System CW-SYS $464.00 Add to cart CW-CON Wireless Driveway System $484.00 Add to cart CW-BOX Sensor Cover $71.00 Add to cart