What are CR2477 batteries?Lithium CR2477 is a non-rechargeable, 3.0-volt manganese-dioxide lithium battery. Its voltage and capacity are determined by the chemistry, load, and cutoff voltage of the powered device. It is also known as the lithium button/coin cell battery with the largest capacity. It's well suited for devices that place a higher demand on the power source.Features: -Low self-discharge: Our CR2477 3V lithium coin cell battery offers “low self-discharge,” meaning they retain their large capacity for a long period of time even when they are not connected to any device.-Impact resistant: Our battery coin cell is designed to withstand impacts making them tough and robust in transport and in use.-Performance you can count on: Our CR2477 3V lithium cell battery performs to its potential even in extreme weather conditions.-Childproof packaging: Each CR2477 3V lithium battery comes in protective, tamper-resistant packaging. Remove individually before using.-Emergency ready: The long-lasting 3V lithium coin battery arrives ready to use; can be used immediately or stored for later—perfect for emergency use.-Replaces the following: BR2477N, BR 2477N, BR-2477N, CR2477N, CR-2477N, DL2477N, DL 2477N, BR2477-1W, KCR2477, LM2477How to use: Look at your 3V button cell battery and you'll observe one of the sides is flat and has a large “” marked on the top whereas the other is lightly rounded. Insert the button cell ensuring the positive side is on the top and the negative is facing down, towards the button battery cell compartment.Precautions:-Wipe the coin cell battery with a dry cloth and set properly confirming ends (/-).-Do not throw the battery into fire, do not recharge.-Store batteries in a cool and dry place.-Keep batteries out of children's reach.Specifications:-Voltage: 3V-Package Dimensions: 7.87 x 2.32 x 0.35 inches-Usability: Single usePackage includes:-5 x CR2477 lithium button battery.