These Maxell brand batteries can be placed in various items requiring button batteries. These button batteries come in a pack of ten. The product is intended for a single use, and the model number is LR44. These batteries are ideal for electronics including watches and calculators. This product is alkaline in nature. It uses a reaction between manganese dioxide and zinc to create electric power. The weight is 0.3 pounds, making it small enough to store in any small space.