EnergizerA23pk12 A23 Battery, 12V, 1.8" Height, .5" Wide, 2.9" Length (Pack of 12)

I expected a 12 pack of genuine Energizer batteries which would have come in a manufacturers package marked with an expiration date. A zip lock sandwich bag with loose batteries doesn't cut it. No idea how fresh these are. Asked for and received a credit. Based on this experience, and previous battery experiences, I no longer have confidence in Amazons ability to deliver quality batteries.

I use these batteries in my guitars with active pickups since EMG's can handle up to 27V safely. I run these batteries in series to get 24V. These Energizer batteries lasted 1/4 of the time that the generic ones I used previously did before I replaced them (they still had juice left).It's not fun playing a live show and having your guitar cut out on you. These guys DID work for a while, but I can't trust their longevity, so I'm giving it 2 stars.

If you care for presentation, forget it. These batteries come in a zip lock bag and not all of them are going to work. But the good percentage of them that work makes up for the cheap price. Like buying 12 for the price of 1. Can't beat that with a stick. Just saying ...

Special batteries are always a problem since many drug stores do not have the one you need or it is out of date. It is great to get just the right one delivered to your door in just a day or two. No wasted time driving around.

With so many negative reviews i was a little worried. I jut received mine. They came in a small box that fit the batteries well. I tested all of them. They all were 12.6 volts or higher. Very happy so far (at least after 1 day).

So there was a mistake with my order and I'm still giving it 5 stars. The mistake was corrected very quickly and I couldn't be happier with my purchase. I also saw a lot of reviews that claimed their batteries were old and weak, so I tested all of mine. Every single battery was between 12.43v to 12.49v. I would definitely buy again.

Much cheaper than buying from local home improvement stores. All of the fans in my house use remote controls, as does my doorbell - and these fit perfectly! Great products for a great price. I even have more to spare now in case any don't live long.

This is the only way of buying replacement batteries for all the devices that use this size like the garage door opener and remote fan and door controls... The net price is a lot lower than buying them in pairs or individually

Don’t seem to have the punch I was expecting from a brand-name product. Perhaps a knock off.... but they do power the device just not under load.Updated: had the rest of the lot checked there all “dead” as in not enough power to power things. If it’s your tv remote fine but any thing that actually needs 12v not going to happen. The hole lot is 11.8v or less one was 8v new they should be 12.5-13.2 and there not!! Likely why there out of package. The “are” a 12v battery just used by 90%.... and at this time seller will not take back!

4 out of 12 were completely dead when I got them. The rest work but I am not sure how much life they have or if they can be trusted to work as long as the original batteries they replaced. Being stored and shipped loosely packed in a small plastic bag may have allowed some to short out at some point. I will buy the two pack ones next time. They will be protected better than loose packed in a zip lock bag.

Llego en tiempo, pero el embalaje deja mucho que desear (llegaron 12 pilas en una bolsita de plástico). Esto me hace creer que pudieran ser pilas que no aguantaran mucho tiempo (aun siendo Energizer). Probé cada pila con un multímetro antes de utilizarlas y todas marcaban de 12.4 a 12.3 volts.

son necesarias para algunos dispositivos electronicos que tengo, que necesitan este tipo de pilas, llegaron en excelente condicion, definitivamente es mas facil adquirirlas de esta forma, en ocaciones no se encuentran, disponibles en el mercado regular, gracias.

su funcionamiento pues ya lo conocemos, espero si duren mucho dado que fueron conectados con luces led, y que aguenten algunos años su empaque pues esta bien tambien