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Home > Batteries > Hearing Aid > Size 312

Energizer® EZ Turn & Lock Size 312

*vs. 2011 Energizer product, high rate tests
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Now lasts up to 4 hours longer*! This easy, convenient packaging has a dial that is easy to turn, yet the lock and the “click” lets you keep your hearing aid batteries precisely where they need to be to dispense – or stay put. No free-wheeling batteries falling out in drawers and purses with this package! Energizer has the world’s first mercury free hearing aid battery and 100% recyclable packaging to responsibly power you with less impact on the environment.

 *vs. Energizer 2011 product, based on high-drain performance.

Product Specs

  • The Longest-lasting zero mercury** hearing aid batteries we’ve ever made, now lasting up to 4 hours longer.*
  • EZ Turn & Lock design keeps unused batteries safe and secure.
  • Batteries are easily removable from the access tab on the back – but only when you WANT to remove them. You are in control with the Energizer® EZ Turn & Lock package.
  • Longer tabs clearly marked with the size and color make for easy shopping, handling and insertion.
  • 100% recyclable packaging and zero-mercury batteries responsibly power you with less impact on the environment.
  • Perforated top of package enables miniaturization of pack for easy transport and storage.
*vs. Energizer 2011 product, based on high-drain performance
**based on high-drain performance.

 

Watch Videos

Causes of Hearing LossPower Your Hearing Aids with Less Impact on the EnvironmentBenefits of the Hearing Aid Battery Package

 

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Energizer EZ Turn & Lock Size 312 3.1 5 48 48
No more than two days before having to replace? Extremely disappointed in these batteries. Never got more than 3 days usage before the beeps would start, indicating that the power life was coming to an end. Typically I'm able to get a week out of most hearing aid batteries. June 9, 2013
Nice package I purchased this battery pack of #312 for my hearing aide in June of 2013. The first battery lasted a little over a week, 2nd, 3rd and 4th lasted less then one day. 5th battery last one full day. I now have 6th battery in and we shall see how long this one lasts. This has been the worst set of batteries I have ever had. What seems to be the problem? Old Batteries? June 8, 2013
loose contact I had never used Energizer hearing aid batteries and saw a great deal at Sams Club so I purchased a pack. What a mistake! My hearing aid keep shutting off and turning back on for no apparent reason. After paying for an appointment at my audiologist they tell me that it is the Energizer batteries. They are just the tiniest bit smaller than the other brands I have used and loose contact. Not a deal after all when I am stuck with batteries that do not work. June 5, 2013
Bad package design The EZ Turn & Lock is thicker than the flat-pack, and does not fit in my wallet as well. The flat 16-pk is a better, more convenient package design. May 8, 2013
Good Value, but its a gamble I have been using Hearing Aids my whole life, looking for the best value for performance. Unfortunately, I had a negative experience with this type of battery. However, I did get a great value for these hearing aid batteries, (being a college student, cheap is always good!); but in the pack, I did encounter one major problem, I had a dead battery in the pack. That wasn't the only problem I encountered; I also had difficulty with the battery life. Some of them would last me a week and a couple of days, which is better than most brands, but then some would last 4-5 days. So I would have one hearing aid battery working, when I have to replace the other. As any hearing aid owner, its a pet peeve to us when one of the batteries dies and the other doesn't die within the next 3 hours. April 30, 2013
do not last for one day Could not find one good thing One shut down in just 5 min others with in same day shut down some did go for two - three days what a hassle to carry 312 aroud just to keep going... I bought 24 pack lasted only 13 days April 25, 2013
These batteries do not last! I purchase these in a pinch when I cannot get to Costco to buy there batteries. The last 2 times I have purchased I have had two dead batteries in the pack. Today I bought some from the local grocery store and they are dated for 04/2014, well I installed two batteries, one for each ear and the left side died within 5 minutes. This is ridiculous. Spend $9 for 8 batteries and they do not work. I will never buy again! April 17, 2013
Terrible Performance "Lasts 4 hours longer" is a misleading statement when a battery fails after a day. April 14, 2013
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Q&A for Energizer EZ Turn & Lock Size 312

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Age: Over 65
Gender: Male
I've used this product for: 1-5 years
I purchase hearing aid batteries: Once every 3 months
My hearing aid battery size is: 312
Buys batteries for household: Myself
I purchase specialty batteries at: Drug Store/Pharmacy (e.q. Walgreens, CVS)
I purchase Hearing Aid batteries in packs of: 8-pack
11 months ago
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Greenfield, MA
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Answer: 
1.5 volts?
Age: Over 65
Gender: Male
I've used this product for: 6-10 years
4 months ago
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Laurel, Maryland
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Answer: 
The nominal voltage of hearing aid batteries is 1.4 volts. You can find more technical information about the 312 size hearing aid battery at http://data.energizer.com/PDFs/312....
11 months ago
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