What type of batteries does a hearing aid use? How long will they last?
Not all batteries are created equal. Choose premium zinc batteries over standard zinc batteries as they will have by far the longest life. Sometimes the cheaper batteries will cause performance issues. Mercury batteries are no longer available. The length of time your batteries last depends upon the current draw and power of your particular hearing aid and the size of the battery you use. Hearing aid battery sizes are 675, 13, 312, 10 and 5. The 675 battery is the biggest and is used with behind-the-ear hearing aids. The number 10 and number 5 batteries are the smallest and are used in the very tiny, completely-in-the-canal hearing aids. Battery life can vary from one week to six weeks. It is important that you make sure you have a quality battery in your hearing aid, especially in the advent of the digital hearing aids and the more powerful hearing aids. They require a constant voltage in order for the circuitry to operate at its maximum efficiency. Batteries no longer need to be stor
