In a nutshell: The trend is clearly towards rechargeable batteries, and we also recommend them in most cases in our specialist store: handling is much simpler, a full charge will last you 18 to 20 hours a day, and manufacturers are now almost exclusively offering new generations of behind-the-ear hearing aids with rechargeable batteries. Battery-powered devices remain relevant primarily for co-payment-free health insurance devices, certain high-performance devices, and in the in-the-ear segment.
The market has already decided
What many people don't know: The question often doesn't even arise when buying new hearing aids. On the new chip platforms, i.e. the current generations of hearing aids, most manufacturers in the behind-the-ear segment simply no longer offer battery-powered devices. There are two exceptions: Hearing aids for profound hearing loss (WHO4 provision), which are still available with batteries, and with co-payment also on current platforms. And the co-payment-free health insurance devices, which, however, often remain technically unchanged for 3 to 4 years. In the in-the-ear (ITE) area, on the other hand, there are still some battery-powered devices with current chips.
Battery life comparison
A rechargeable hearing aid runs for an average of 18 to 20 hours on one charge, which is enough for the whole day, and is charged overnight. A battery of the common size 312 lasts about 5 days, depending on the wearing time and set volume, because the louder it is, the higher the power consumption. The practical difference: With a battery device, you should always have spare batteries with you, with a rechargeable device, a full charge in the morning is enough. And we can dispel the fear of winter from practice: No customer has ever complained to us about a too short battery life in the cold.
Handling and costs
Handling rechargeable batteries is much easier for most people: Put the devices into the charging station in the evening, take them out in the morning, done. No battery compartment, no peeling off protective foils, no fiddling with tiny button cells, a real advantage if dexterity decreases. However, the convenience of rechargeable batteries costs a co-payment for those with statutory health insurance, usually from around 400 euros per hearing aid. Our experience: Around 95 percent of customers are willing to invest that.
Our conclusion from the specialist store
In the end, it's a matter of taste and convenience, but we clearly recommend rechargeable batteries: easier handling, reliable battery life, current technology. Batteries remain the right choice if it should be co-payment-free or if the desired device is only available that way.
Frequently asked questions
Does battery performance decrease over time? Yes, like any battery, it gradually loses capacity. Usually, after 4 to 5 years, a lower performance is observed, but this is usually still sufficient for the whole day. The acoustician can have the battery replaced at the factory, or earlier if desired. More about this in our rechargeable battery guide.
Can I charge on the go? Yes, mobile Go charging stations have a built-in battery and charge without a power outlet, ideal for travel.
Do batteries perform worse in winter? Cold costs some capacity, but with normal use, the difference remains small. Nevertheless, spare batteries belong in your pocket in winter.
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