ZPower Battery FAQs

How long do ZPower batteries last between charges?

ZPower batteries provide all-day continuous power, even in advanced hearing aids with moderate streaming.

I understand the ZPower Silver-Zinc Rechargeable battery has a higher voltage than zinc-air batteries. Does the higher voltage have an effect and impact on the performance of the hearing aid?

The ZPower Rechargeable System regulates the silver-zinc battery voltage to operate in the same range as zinc-air and the rechargeable Nickel-Metal Hydride (NiMH) batteries used by some manufacturers. Therefore, there is no change in the behavior of hearing aid processors. Independent lab testing of hearing aids from all six of the major hearing aid manufacturers was conducted by the hearing aid research labs at the University of Pittsburgh and James Madison University.

The electroacoustic testing confirmed electroacoustic performance is unaltered. ZPower verified this behavior during field trials with large independent clinics and hospitals and at the hearing aid research labs at Vanderbilt University Bill Wilkerson Center. Third-Party testing Lab Delta, located in Copenhagen Denmark, was the final testing phase which also showed that the ZPower system yielded the same results when using the two different types of batteries.

How is the ZPower Rechargeable System used with existing hearing aids?

Attaching ZPower’s door is as simple as replacing a broken door and can be performed by hearing care professionals at their office. Our door opens and closes the same as the original door and retains compatibility with zinc-air batteries, should you forget to charge your hearing aids. Watch our videos to see how quick and easy it is to make hearing aids rechargeable.

How long do ZPower batteries last before they need to be exchanged?

ZPower batteries will last for about a year. Your Hearing Care Provider will provide a new battery to you when it is time.

How long does it take to fully charge a ZPower battery?

The ZPower Rechargeable System has a smart charger that knows how much the patient discharged their batteries. Based on how long the patient wears their hearing aids and the type of streaming they utilize, it will take up to 7 hours on average for a fully recharged battery.

Can disposable batteries be used with the ZPower System?

Yes, they can! Should you forget to charge your hearing aids or take your charger during travel, you can remove the ZPower batteries and replace them with zinc-air batteries. Just remember to store your ZPower batteries in a safe place and not throw them away!

Do ZPower batteries change the way hearing aids operate?

No, there will be no negative impact on the hearing aid. The battery, door and charger have been thoroughly tested by ZPower and highly respected testing laboratories to verify compatibility with your hearing aid.

What happens when the silver-zinc rechargeable battery is getting low on power?

The hearing aid wearer will hear the low battery warning. Once the low-battery warning occurs or once a hearing aid shuts off due to a low battery condition, the battery door should not be opened and closed to reboot the hearing aid. Rebooting after the low battery warning can override the smart circuitry in the battery door into believing it has a traditional disposable battery installed and, although the hearing aid will continue to work for a short period, it may over-discharge the battery. If a low-battery warning from the hearing aids is received, the hearing aids should be placed in the charging base for charging or the batteries should be replaced with non-rechargeable batteries. The rechargeable batteries should not be stored with metal objects such as keys or coins.

I use a hearing aid app to track the battery life of my disposable batteries, can I use the same app to track the battery life of ZPower rechargeable batteries?

No, the apps provided by the hearing aid manufacturers do not accurately track the battery life of ZPower rechargeable batteries. The apps were designed to predict the battery life of disposable zinc-air batteries. However, the app will still show a battery life estimate, you should ignore this estimate as it is not accurate. At this time, there are no apps to measure the battery life of a silver-zinc battery.

Why do I need to change the battery door?

The battery door contains electronics that enable recharging of the battery. They also regulate the voltage of ZPower silver-zinc (AgZn) batteries to operate in the same range as zinc-air and nickel metal hydride (NiMH) batteries.

Do I need to clean the charging contacts on my hearing aids and charger?

Yes, to ensure your hearing aids charge properly, it is important that the hearing aids and charger are dry and clean before charging. Use a soft tissue to remove moisture or debris on the hearing aids and charger contacts. The soft brush that is included with hearing aids may also be used to remove debris from the charging wells. Do not use rubbing alcohol or other chemical substances.

What happens if I forget to charge my hearing aids?

Hearing aid wearers will still be able to use traditional disposable zinc-air batteries with the ZPower Rechargeable System. Patients can simply replace the batteries by opening the battery door as they normally would.

Since patients will be able to store their hearing aids in the ZPower charger when they are not in use and the battery door will rarely be opened and closed, is there risk of corrosion that could cause damage to hearing aids?

TÜV Rheinland is an independent testing company widely used by the hearing aid manufacturing industry to evaluate product performance. ZPower batteries have passed U.S. and International battery safety standards UL2054 (UL Standard for Safety for Household and Commercial Batteries) and IEC62133 (International Safety Test Standard for Batteries).

In addition, ZPower has conducted extensive corrosion testing with hearing aid manufacturers and the results confirmed that corrosion and moisture will not be a problem for patients. Similarly, with regard to swelling, the ZPower batteries always remain below the IEC mandated levels during operation (charging and discharging). When the hearing aids were tested for IP ratings, the ZPower Rechargeable System met each of the claimed ratings from all hearing aids tested.

Is there an environmental advantage to the silver-zinc battery?

A single ZPower silver-zinc rechargeable battery will take the place of an estimated 100 zinc-air disposable batteries, will last an entire year and is recyclable. This is a positive contribution to the environment by professionals and their patients. Currently, it is estimated that 800 million to 1 billion disposable zinc-air hearing aid batteries are used in the U.S. annually and 1.5 billion globally. These disposable zinc-air hearing aid batteries are sent to the landfill every year.

Can I use an active drying system for hearing aids with ZPower batteries?

Only use an approved active drying system. If the drying system is not approved, then remove the batteries from the hearing aids before placing the aids in the drying system. Unapproved active drying systems may have temperature ranges that exceed the recommended rechargeable battery operating temperature. This may damage the battery.

Contact Customer Care

Still need help? Contact us directly using the contact information provided here.
Email customercare@zpowerbattery.com
Phone Number (866)-364-2909