Zinc-air batteries need to be changed every 5-14 days depending on a number of factors including the size of the battery and the severity of your hearing loss. Rechargeable lithium-ion battery hearing aids need to be placed into a charging unit overnight. Here are five things to consider when selecting your next pair of heairng aids:

Ease of use

  • If you have poor vision or limited dexterity, you may find a charger easier to use compared to changing small disposable batteries.


  • With rechargeable hearing aids, there is no need to go out and purchase batteries.
  • You are more dependent on a charging unit/power source with rechargeable hearing aids as they do need to be charged every day. With some hearing aid brands, you can get a power pack for your charging unit which can be useful for when you do not have regular access to a power source.
  • Hearing aid batteries go flat with around 30 minutes warning meaning you can be caught off guard with a flat battery. Rechargeable batteries last up to 24 hours so will provide you with a full day’s use.
rechargeable vs battery hearing aids


  • With most rechargeable hearing aids, the battery compartment is sealed so it is harder for moisture and dust to get into the hearing aid.


  • With rechargeable hearing aids, there is no need to worry about children or dogs swallowing the batteries (unless they swallow the whole hearing aid!).


  • Although rechargeable hearing aids are more expensive upfront, they can be more economical over the lifetime of the hearing aid as you do not need to purchase batteries.
  • If your batteries are funded (e.g. through ACC), then hearing aids with disposable batteries may be more economical for you.
  • Batteries are included in the subscription costs if you have a Triton Hearing ‘Pay As You Hear’ plan for a battery-operated hearing aid. 
If you would like more information or help deciding whether a battery-operated hearing aid or rechargeable hearing aid is best for you, please request a free appointment with one of our experienced audiologists.