Amazon.com: BlueDot Trading Single Pack 2CR1/3N Lithium Cell Replacement Battery 6.0V Low-Power Consumption for Dog Collar, Cameras, Calculators, Keyless Entry, and More : Automotive
US SELLER ~ 2pcs 2CR1/3N WC2CR13N (L28PX L544) 6 Volt Lithium Coin Battery | eBay