Batteries Flashcards
What are zinc air cell batteries?
Disposable batteries
Combination of air and zinc gives it power
Tab is pulled and air enters a small hole on the positive side of the battery
How long is zinc air cell batteries shelf life with the tab on?
2-3 years
How do you maximize the shelf life of a zinc air cell battery?
Store in secure location
Avoid extreme moisture and temperatures
Do not store in fridge
Let battery breathe before use
Open battery door when not in use
Monitor streaming use
What was the original battery used in rechargeable hearing aids?
Nickel-metal hydride
What is the daily capacity for nickel-metal hydride batteries?
10 hours
What is the main problem with nickel-metal hydride batteries?
Battery capacity reduces with every charge
Need to be returned to manufacturer for replacement after a year
What are silver-zinc batteries?
They are batteries designed to be interchangeable with disposable batteries
How long is the battery life of silver-zinc batteries?
At least a day
What is the main problem with silver-zinc batteries?
The battery compartment needs to be changed to a certain voltage converter so it doesn’t fry the hearing aid
Voltage runs higher than other batteries
What are the advantages of lithium ion batteries?
Energy efficient
Significantly longer battery life
Fast charging
Lasts the life of the hearing aid without change
What are some disadvantages of lithium ion batteries?
Faulty battery chargers are a problem
No replacement alternative if battery loses its charge (needs to be sent in for repair)
Must replace every 3-4 years
Available mostly in high-end devices
