
If your keyless entry remote seems to be acting up (works intermittently) be sure to check the voltage that's left on it since the problem might be that the battery is about to run out. Mine didn't want to work half the time and sometimes it would only work from a really close distance. All my problems went away once I changed the battery.
Not much to say about this battery yet, except that it restored my ADT Security key fobs to life. If your device uses any of the following batteries, this is what you are looking for;
Duracell: MN21
VARTA: V23GA
EVEREADY: A23
NEDA: 1811A
IEC: 3LR50
Panasonic: LR-V08
ELPA: SES-23A
MS21
VR22
EL12
GP 23AE
GP-23A
8LR23
ANSI-1181A
8F10R
8LR23
8LR932
23A
23GA
1181A
A23BP
CA20
E23A
GP12A
GP23A
GP23AE
GP-23A
K23A
L1028
LR23
LR23A
LRV08
LRV08PA
LRVO8
MN21
MN21/23
MN23
MS21
RVO8
V23
V23GA
VA32GA
VR22
I can't comment on the battery life yet, but will when my ADT Security key fobs die again. The Duracells lasted 6 months before having limited range, and then another 2 months before croaking altogether. The thing that suprised me was that they both died at the same time, in spite of one getting used much more than the other.
Wish there was a longer life equivalent, such as a lithium, but I have been unable to find one.
Edit;
Just hit 10 months and the key fobs are still going strong. Looks like battery life is much better than the Duracell!
For those who have thanked me in comments, You're very welcome!!!
A21/23
Pros:
–Price, availability, 2 pack, don’t have to run around town trying to find them
–Product received, same as pictured
–Expiration date on package: March, 2020
Cons: Not always the easiest battery model to find in-stock in local stores.
Other thoughts:
Only use them with two wireless, exterior door bells; from experience, they last longer than the listed expiration date, even exposed to local heat and humidity.
Keeps my garage door remote doing what it's supposed to do for years and years.
Store the excess batteries in the fridge, and they'll be ready to go years down the road when you need them.
I don't know how long they will last, but they work perfectly in the remote control for our ceiling fan. We bought the house with a fan already installed, and the remote's battery was dead. The dead battery was marked "E12," but when I searched for such a battery, there were none to be found. It needed to be 23 amp and 12 volt, so after I measured the old battery, I took a chance on this one, as it seemed to be the correct size.

Feature Product
- High energy density
- Long life power source
- Advanced engineering and state-of-art manufacturing
- Longer life and consistently reliable performance
Description
These Energizer A23 miniature batteries give reliable power to your keyless-entry devices, garage door openers and more. Energizer delivers long-lasting power to keep even the smallest devices going... and going. Imported.
Bought these to power up a few small strips of LED lights, and they are great! The give it enough power and it lasts a long time. I've been using the fake Nightwing stun sticks I made on and off for the past week, and they are still going strong. Don't know how long exactly these will last, but I already bought extras in case. I like these a lot because they don't cause the LED lights to get hot like the power cord I have does. Then again, I'm new to this, so my power cord may just have too much voltage. Overall, I really like these and highly recommend them.
6.5.2017- ZeroMecury12v -voltage not tested by me-Alkaline Batteries A23/E23A - 2 on blister pack - each contains 8 button cell batteries if taken apart. Expiration date: 03-2019 - date is listed on the pack not on the battery - Made in China - As button cells - they work in my GUM dental mirror, which is why I bought them. 4 stars because of China manufacturing. If these do not last at least a year, I will re-post.
Energizer batteries are my favorite for years now.
I use them in my four game cams and they definitly
Outlast Duracell, panasonic, Rayovac, etc.
The game cams are real battery drainers when the
Infra red night lights are on recording 30 second videos.
Duracell a close second but I always get this brand whenever
I'm running low.
I would reccomend these batteries.
Bought these for my Dad and I to put in our remote receptacle controller. We've both had the same three channel receptacle controller for a few years now and the old 12V batteryies were dying in both our units. These batts make them work like new again!
Every time something stops working in this new Electronic world we live in, it seems that there is yet another size battery needed. So glad to find these quickly at Amazon. My hall fan and ligtht fixture says "thank you!".







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