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Understanding Battery Performance & Rechargeable Battery Technology

View Course Details Please note: exam questions are subject to change.


1.  What are 3 attributes of ZPower rechargeable silver-zinc batteries?
  1. Non-flammable
  2. Interchangeable with Zinc Air
  3. Small size
  4. All of the Above
2.  Nearly every hearing aid manufacturer offers a silver-zinc powered hearing aid. ZPower batteries are also used in:
  1. Alarm clocks and power banks
  2. Medical devices and consumer electronics
  3. Smart Watches and iPhones
  4. iPads and Laptops
3.  A battery's capacity is:
  1. The charge stored by the battery
  2. The measure of the amount of energy that can be stored for a given weight or volume.
  3. Measured in mAh
  4. All of the above
4.  What is the range of current drain listed on multiple hearing aid size 312 product data sheets?
  1. 1-1.5 mA
  2. 1.5-2 mA
  3. 2-2.5 mA
  4. 2.5-3 mA
5.  What adaptive features are turned on when measuring hearing aid battery drain rates for data sheets?
  1. Noise reduction
  2. None
  3. Feedback suppression
  4. iPhone streaming
6.  When silver-zinc batteries are getting low on power, the user ________ try to reboot the hearing aid by opening and closing the battery door.
  1. Should Always
  2. Should Sometimes
  3. Should Not
  4. None of the above
7.  Where is the BEST place to keep hearing aids powered by ZPower when not in use?
  1. In the charger with the cord plugged in
  2. High on a shelf
  3. In the charger with the cord unplugged
  4. Left in a safe place with the doors open to turn off aids
8.  What are the actual hearing aid size 312 product battery drain rates, including when streaming?
  1. 1-1.5 mA
  2. 5-8 mA
  3. 1.3-4.8 mA
  4. None of the above
9.  Why isn't it recommended to put ZPower batteries in active dryer kits?
  1. Active drying systems do not work with silver-zinc batteries due to the nature of their water-based chemistry.
  2. Active drying systems will cause ZPower batteries to shrink in size.
  3. Active drying systems may have temperature ranges that exceed the recommended rechargeable battery operating temperature, which can reduce the life of the battery.
  4. All of the above
10.  If the charging base is not accessible, or the batteries will not be used for over 2 weeks, the rechargeable batteries should be:
  1. Removed from the hearing aids and stored in a location where they will touch each other and other metal objects.
  2. Removed from the hearing aids and stored in a location where they will not touch each other or other metal objects.
  3. Left in the hearing aids with the doors closed.
  4. Left in the hearing aids with the doors open.

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