The battery in my iGrill Mini is low. What type of battery should I replace it with? The iGrill Mini uses a single CR2032 3-volt battery, available in most convenience stores. Related articles How do I replace the batteries in my device? How can I check the battery life of my device? How do I replace the batteries in my device? Using Your iGrill Mini I'm done using my device. How do I disconnect from the Weber iGrill App?