Power One Zinc p312 hearing aid battery,60 pcs pack

Good price and good product. Will never buy at drug store again. They are a third of the price for same quality.

Good dates, good product.

Great for my son’s hearing aids.

We’ve been using these Varta brand size 312 batteries for years now and have been very happy with them. We save a bunch of money by purchasing them through Amazon and the batteries are always fresh.

If you have any mobility issues with your hands you are going to struggle getting these out and putting them into your hraring aids. The package is "child proof" so you have to use scissors to open, and even that is not easy or tear the package apart with your hands, then the brown tabs are small hard to get them off once placed into the hearing aids. I don't have mobility issues and I struggle.Other than that, I Really like this brand of batteries. I have been using hearing aids for years and there are always some duds with other brands. Not a single dead batery with this brand.

Read this dialog between me and the seller. Judge for yourself. Chronological order (earliest message first).ME:I'm not happy. I bought a box of these batteries mid-NOVEMBER of LAST YEAR, only 6-7 months ago. The batteries' packages are all marked good 'til Oct. 2015. The box they came in also says they're good until 10/15. I've kept them all in a drawer in the pantry, a dark, cool, dry place and I only get one pack out at a time. I use batteries sparingly.Last week, I went back to get another pack of batteries and found out the batteries I got from that pack died out INSTANTLY as soon as I powered them up in my hearing aids. I tried another two from the same pack. Same result. I got another pack out and took one out to try it. DEAD. Tried another pack. DEAD. Was I about to sit there and try every single battery in FOUR unused packs of batteries to find one that's GOOD? Not really. I shouldn't have to pay for ONE dead battery, let alone SIX. Out of a total of 60 batteries, that's at LEAST 10 percent of a total shipment BAD.And that's from a small sampling. I'm positive the rate of failure will be even higher if I continue to check ALL of the batteries.Would you buy a brand new car if at least 10 percent of it or more was damaged? I think not. Would you buy a new TV if it worked only 90 percent or less of the time? I think not.It's a shame that I have to be ripped off like this but even more insidiously, I have to find out now, SIX MONTHS LATER because, well, nobody expects me to go through sixty batteries in just a few months, let alone rip the tabs off and activate all of them in one week just to CHECK them to make sure I didn't get a defective product. A pack like this should, by the rate of my usage, last me at least a full YEAR.I'm very, very disappointed. I'd love for something to make this right but I'm being realistic when I believe that nothing will happen other than me moving forward with being frustrated, ordering batteries from another vendor and telling people to stay away from you.It's up to you how you want to handle this. I am going to post this message in a revised review if I don't hear from you.THEM:Hello,Thank you for contacting customer support. All PowerOne hearing aid battery product is fresh from the manufacturer within 30 days. Powerone is the second best performing battery on the market today. We do have the Amazon 30 day return policy, Unfortunately, the return time has expired and we no longer accept returns for this product.A zinc air battery uses air outside the battery as a source of power. The factory applies a tab which seals the air holes in the battery to ensure freshness and prevent self-discharging until you are ready to use the battery. Do not remove the tab until you use the battery. To activate the battery, you may simply remove the tab. After removing the tab, wait about one minute prior to inserting the battery into your hearing aid. This allows sufficient time for the air to enter and activate the battery. Some users insert the batteries into their hearing aids right after they take off the tabs without proper activation time, and then find their devices do not work. Do not misinterpret this as battery failure. This is just that the voltage has not reached high enough yet. Just wait a few more seconds. You will find your hearing aids work very well. Longer activation time does not mean low capacity at all.Zinc-Air battery starts activation right after removal of the tab on a battery. Accordingly, voltage measured right after removal of the tab is normally lower than specified voltage of 1.4Volt. This has nothing to do with battery capacity and you do not have to worry at all. It will be fully activated as you use the battery. We would like to suggest that you insert the battery into your hearing aid at least 1 minute after removal of the tab to allow for proper activation time. Both digital and analog hearing aid machines available today provide you with clear sound if working voltage is being applied over 1.1V. Low voltage before activation proves how well the tabs are sealing the air holes and protecting the batteries from self-discharging.1.4 volts is a zinc air battery’s nominal voltage when measured after fully activated without any load and it can be slightly different per manufacturer.However, the battery's actual operating voltage is less than that (such as 1.2volt or 1.25volt) when measured with load.The hearing aid device works very well as long as the battery maintains its operating voltage above 1.1 volts.Following are the main causes of battery problems:a. Not enough time for battery to be activated after peeling off the tab.b. Dented battery surface causes poor contact with battery terminal of the hearing aid.c. Rarely, a dead battery even if it is a new one.d. Built up dirt on the battery terminal of the hearing aid causes poor contact.e. The battery does not fit into the battery holder of the hearing aid. (some battery holders are designed with a smaller cavity where the battery negative housing is placed)lf hearing aid does not work properly after replacing with a new battery (wait one minute after peeling off the tab before use), please take your hearing aid to the service center.Please visit the powerone website for additional information:[...]ME:Wow,But then, it's what I expected from you.First of all... I have been wearing hearing aids all my life. I have been using air-activated batteries for many years. In fact, I wouldn't be surprised if I'd been using air-activated batteries long before your company started selling these batteries. I know all about how and why to pull a tab off a battery and wait a minute or two before putting it into my hearing aid. Second, I wear TWO hearing aids. Aha! Here's how I definitely KNOW batteries are defect: I use the left aid less than I use the right aid. Often times the left aid's battery is still working fine when the right aid's battery goes out. Then I rotate the left battery over to the right side. In the case of a battery that's SUPPOSED to be fresh and new...after waiting a while for it to activate, and it still doesn't work, I test the hearing aid itself by moving the battery from the left to the right aid. If it works, then the problems is NOT the hearing aid, it's the BATTERY. I got into this habit years ago when I left a couple of spare batteries in the car during the summer. I tried one and it didn't work. I tried the other to no avail. Thinking my right hearing aid was bad-and I depend GREATLY upon hearing out of my right ear-I took out the battery from my left aid and tried it in the right. To my relief, the right aid worked, confirming the spare batteries I'd left in the car were bad.And this bit about the battery size not fitting the holder...hogwash. Yeah, if you use a different group size battery. But I've been USING your batteries with SUCCESS. Then using batteries from another pack in the SAME BOX that do NOT work. Explain THAT. Ditto for the "dented battery surface" excuse. Ditto for the "built up dirt on the battery terminal". Look into my first paragraph above. When my right aid battery goes dead, I immediately put the left aid's newer battery in there and away I go. I'm one of those people who can get away with one aid, but really need both for balance, even if the left ear and aid are both in worse condition than the right ear and right aid.Maybe you've forgotten my earlier statement that I bought a 60-battery box from you and have been using them since November of 2012. "Hmmm...let's see here....maybe he used a pack of Ray-O-Vacs or Duracells and got them mixed up with ours?" Uh...NO. Think I'd be dumb enough, after getting a great deal on 60 batteries, to spend maybe the same amount of money on something like 12 to 24 more batteries of another brand/vendor? When I find a good deal and a good supply at a good price, I tend to STICK with it. I don't mix-and-match.I will take the rest of these batteries, still new in their packs, to a State-licensed audiologist-in fact two audiologists-to have them independently tested and certified as to whether they are actually good or not. For giggles, I'll have the hearing aids tested..AGAIN...just one month after they were given a clean bill of health.I thought the pricing was too good to be true. I'd read some comments in the reviews from other people who ALSO found out....way too late...further into their boxes of batteries that the rest were DEAD. I initially thought these might be written by people who didn't know how to use air-activated batteries, etc. OR perhaps by your competitors. Now I know better. Yeah, I'd agree with the "rarely a dead battery even if it is a new one" for the most part; and it HAS happened...RARELY. In fact, I can't even remember the last time a pack of Duracells or Activairs produced a single bad battery but it HAS happened. But when I pull out MULTIPLE batteries from a single pack or multiple packs from the SAME BOX, all having the SAME LOT NUMBER and SAME EXPIRATION DATE, something is WRONG.Fortunately, I have a neighbor in town who uses the same group size batteries and I was able to get a couple from him, which are powering my aids right now.Maybe the BBB and the Oregon Attorney General might be interested in this. I wonder what would happen if I got into touch with the other customers who've commented they've run into the same or similar situation? Can you catch my drift?Good luck to you.SO FAR, NO ANSWER FROM THEM.Please feel free to message me if you, too, have experienced the same problem.

Best 312 battery I have used. I wear hearing aids about 16 hours a day. The Varta batteries last me about 4 days. All other brands only last me about 3 days. The packaging is quality done (no battery covers loose in package). One minute in air and they are ready to install. Expiration date of 2029-02 on the ones I bought in April 2025. Work flawlessly and reliably with my Phonak hearing aids. Definitely worth the extra cost over that of many other name brand batteries.

The batteries that I've used so far last just as long as the ones I buy from the store, but these were much less expensive. I recommend them.