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Energizer MAX Batteries

Energizer® MAX® 9V Batteries

Energizer is proud to introduce Power Seal Technology!

You told us what frustrates you with batteries. We listened. Now the alkaline battery you count on every day to power your smoke detectors and alarm clocks is even better.

Introducing Energizer® MAX® 9V batteries, now with Power Seal Technology. Our 9V batteries hold their power for 5 years, so you can have assured you’ll always have power you can rely on, whether you’re helping to keep your family safe from fire or carbon monoxide or just wanting to start the day on time. A 5 year shelf life means that you can be confident you’ll always have power when you need it most. that's positivenergy!

* When not in use

Product Specs

  • Power Seal Technology extends across the full MAX® product line, so you can be confident you’ll always have power when you need it most.
  • Shelf life for MAX® varies by product. Our AA, AAA, C, and D batteries have a shelf life of 10 years. Our 9V battery has a shelf life of 5 years.
Energizer MAX 9V Batteries 4.8 5 185 185
It lasts a long time! this product lasts a long time (especially for use in smoke detectors! May 2, 2012
i only use this in important tools i have 8 children, 14 grand children, and a cat. my wife and myself only trurst the energizer 9 volt max batteries in our smoke detectors all thru our house. we exchange them once a year on my birthday and there is enough battery left to use in my grandkids toys. i used other 9 volts and out of the same packages they would die at different times. again your batteries are the only ones for my family. and their safety. May 2, 2012
Outlasts other Brands! What prompted me to buy these, I tried them in our smoke alarm in our house, they work great! They last longer than other brands I have purchased. Quality product for the money! We have some wall clocks in our house, same great results as smoke alarm! May 2, 2012
These batteries truly work for a long time When they say these batteries keep going they are not fooling they truly work for a long time and multiple devices May 2, 2012
Reliable battery and affordable. I am impressed at the affordability of these batteries in our present economy. They are also very dependable. Just love energizer 9V!!! Steph May 2, 2012
great battery i use enerzier whenever i can. they are longer lasting than other brands May 2, 2012
Long Life This is the only battery I use in my smoke detectors. May 2, 2012
Guitar Player I use Energizer 9 Volt batteries exclusively for my guitar and music apparatus. In my guitar tuner I had an Energizer 9V battery that lasted 5 YEARS before finally giving out. I rebought two 9 Volts yesterday and put one in that tuner and one in my acoustic/electric guitar. If you are a musician, and don't want your gear to not work due to bad batteries, I suggest using Energizer and replacing them fairly often. They will give you a good power life and you can ROCK! May 2, 2012
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(8 Questions : 12 Answers)

Q&A for Energizer MAX 9V Batteries

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Is the 4 digit number on the bottom of the battery the use by or manufactured on date?
5 months, 3 weeks ago
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Answer: 
on the top side of battery
5 months, 1 week ago
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Answer: 
on the back
Age: 35-44
Gender: Female
I've used this product for: 11-20 years
5 months, 2 weeks ago
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spencer Indiana
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Answer: 
the battery
Age: 55-64
Gender: Female
I've used this product for: 21-30 years
5 months, 3 weeks ago
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Age: 18-24
Gender: Male
I've used this product for: 11-20 years
7 months ago
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florence, al
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Answer: 
Thanks for your question. Below is the answer from from our technical team.

Capacity = 625 mAh under a 25 mA load to 0.8 volts per cell. There is no direct conversion for mAh to joules. However there is a conversion of watt hours to joules (10,000 joules = 2.7778 watt hours). The watt hours can roughly be calculated by multiplying the amp hour capacity by the average voltage during the discharge.
7 months ago
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Answer: 
The battery capacity may be influenced by both temperature and discharge rates during use. However, setting those variances aside for the sake of example, you should multiply the 9 volts times the mAh to establish the milliwatt-hours. The sum will equal watt-seconds or Joules.
Age: 25-34
Gender: Female
I've used this product for: 1-5 years
7 months ago
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Illinois
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7 months ago
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Answer: 
you should ask the learning center
Age: 35-44
Gender: Female
I've used this product for: 11-20 years
5 months, 2 weeks ago
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spencer Indiana
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Answer: 
Hi Lucy, thank you for this great question, I would be happy to assist you. There is not a maximum current specification for alkaline batteries. The time desired and the minimum voltage required at the high current will impact if the battery will meet the user’s needs. For example, if only a few second pulse is required, the battery can deliver significantly more current than if hours of service is needed. A discharge curve for our 522 9 volt alkaline battery could be around 100 mA for continuous drain. Please feel free to contact us with any additional questions or concerns on this at 1-800-383-7323.
6 months ago
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Freeport ME
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5 months, 1 week ago
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Answer: 
no, but battery measured 9.46 volts before installing in smoke detector
5 months, 1 week ago
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IDAHO
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Age: 45-54
Gender: Male
I've used this product for: 31+
2 months ago
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Ajax
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Answer: 
Thank you for this great question, I would be happy to assist you. When it comes to smoke alarms and our Energizer 9v batteries, we normally recommend changing them over every 6 months. Though that is just a recommendation, you can leave it in longer without changing it, as long as you keep an eye on the use by date the battery should last for many years.

Thank you for taking the time to contact Energizer
.
2 months ago
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Freeport ME
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1 month, 3 weeks ago
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Answer: 
Thank you for this great question, I would be happy to assist you. You will be able to locate the use by date on the battery itself. It is located at the top next to "9v” starts with "03". I do apologize for this inconvenience.

Thank you for taking the time to contact Energizer.
1 month, 2 weeks ago
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Freeport ME
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Has staff answer
 
1 answer

Accurate capacity (mAh) of this battery?

Dear sir/mardam,
I would like to know about accurate capacity (mAh) of this battery.
Thanks & best regards.
1 month ago
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Answer: 
Thank you for this great question, I would be happy to assist you. Regarding our Energizer Max 9v battery, it has a 625 MAH capacity.

Thank you for taking the time to contact Energizer.
3 weeks, 6 days ago
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Freeport ME
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building a hovercraft and trying to determine how many 9v batteries we need for the power pack using high performance model plane motors.
Age: 35-44
Gender: Male
I've used this product for: 31+
2 weeks, 6 days ago
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maryland
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Answer: 
Thank you for this great question, I would be happy to assist you. The MAH capacity for the 9v Energizer Max battery is 625. I have also provided you with our PDF spec sheet below for additional information.

http://data.energizer.com/PDFs/522.pdf

Thank you for taking the time to contact Energizer.
2 weeks, 5 days ago
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