Every hearing aid is powered by batteries. However, the type of battery varies—some hearing aids use disposable batteries, while others use rechargeable batteries—and both deserve some consideration when you’re thinking about getting hearing aids.
So which is better: hearing aids with disposable batteries or rechargeable hearing aids? It can be a highly personal choice that depends on a number of factors. This guide will help you understand the differences between the two kinds of batteries so you can pick the best hearing aid for your budget and preferences.
Disposable battery hearing aids are powered by small zinc air batteries that are replaced when depleted—typically every 5 to 14 days depending on usage, hearing aid style, and battery size. Disposable hearing aid batteries are activated by air: removing the tab exposes the battery to oxygen, which starts the chemical reaction that produces power.
Hearing aid batteries come in four standard sizes, each color-coded for easy identification:
Size 312 hearing aid batteries are the most widely used. Understanding which size your hearing aids require is important for ongoing maintenance.
One downside of disposable battery-powered hearing aids is that the batteries must be regularly replaced for the hearing aid to keep working. This means keeping replacement batteries on hand at all times. Fortunately, many hearing aids will give you a “low battery” alert so that you know when it’s time to replace your batteries, before they fully die.
So, how long do disposable hearing aid batteries last? It depends on the brand and how often you use them. However, 10 to 16 days is typical. Maximize the battery life by waiting to remove the sticker until you’re ready to use the battery. Conserve power by leaving the battery door open while you sleep and turning off your hearing aids when not in use.
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Rechargeable hearing aids use built-in lithium-ion batteries that are charged via a dedicated charging case—similar to how you charge a smartphone. There are no batteries to remove or replace. Simply place your hearing aids in their charging case overnight, and they are ready to use the next morning.
Miracle-Ear offers a range of rechargeable hearing aids across multiple styles, including RIC, BTE, and ITE models. Rechargeable hearing aid batteries in Miracle-Ear devices provide up to 19–51 hours of use on a single charge, depending on the model—with the Miracle-EarBLISS™ offering the longest battery life at up to 51 hours.
Rechargeable technology is no longer limited to larger hearing aid styles. At Miracle-Ear, rechargeable hearing aids are available across multiple styles:
If discretion is a priority, the best rechargeable hearing aids in smaller styles—such as ITE—are increasingly available, though they may offer fewer features than larger RIC or BTE models.
Hearing aid battery life is one of the most practical differences between the two options: