2 x Duracell C Size Plus Power Alkaline Batteries 1.5V LR14 MN1400 5000394019157 | eBay
Amazon.com: Tenergy 1.5V C Alkaline LR14 Battery, High Performance C Non-Rechargeable Batteries for Clocks, Remotes, Toys & Electronic Devices, Replacement C Cell Batteries, 12 Pack : Health & Household