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  • ULTRA LIFE, 10 year, smoke alarm battery, U9VL-X
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ULTRA LIFE, 10 year, smoke alarm battery, U9VL-X

84 customer reviews

Price: $10.40 & FREE Shipping
In stock.
Usually ships within 4 to 5 days.
Ships from and sold by BIC Warehouse.
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  • Enter your model number above to make sure this fits.
  • Upgrade all your smoke detectors to 10-year life with the only battery warranted for 10 years
  • Reliable lithium battery keeps life-saving detectors energized for a full 10 years
  • Eliminate the cost and inconvenience of yearly battery changes in your smoke detectors
  • Forget all those low battery alarms that always seem to sound in the middle of the night
  • A must for second homes where smoke detectors can fail when you're not there
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Frequently Bought Together

ULTRA LIFE, 10 year, smoke alarm battery, U9VL-X + Energizer Advanced Lithium 9V Batteries, 2 Count
Price for both: $23.34

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Product Description

Package Quantity:1  |  Style Name:CLASSIC

Product Description

Ultralife U9VL-XC Lithium Manganese Dioxide Smoke Alarm Battery U9VL-XC General Purpose Batteries

From the Manufacturer

The Ultralife 10 Year Smoke Detector Battery is the only 9V battery warranted to last 10 years. Alkaline batteries in smoke detectors have to be changed every year. With the Ultralife 10 Year Battery, state-of-the-art lithium technology keeps your life-saving detector energized for a full 10 years. You can forget all those "low-battery" alarms that always seem to sound in the middle of the night. It is a must for second homes where your smoke detector can fail when you're not there. This battery contains no toxic metals.


Product Details

Package Quantity: 1 | Style Name: CLASSIC
  • Product Dimensions: 0.8 x 3.8 x 4.5 inches ; 1.6 ounces
  • Shipping Weight: 1.6 ounces (View shipping rates and policies)
  • Domestic Shipping: This item can only be shipped to the 48 contiguous states. We regret it cannot be shipped to APO/FPO, Hawaii, Alaska, or Puerto Rico.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B00004W3ZE
  • Item model number: U9VL-X
  • Batteries 1 Lithium ion batteries required.
  • Average Customer Review: 3.5 out of 5 stars  See all reviews (84 customer reviews)
  • Amazon Best Sellers Rank: #75,103 in Home Improvement (See Top 100 in Home Improvement)

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

84 of 90 people found the following review helpful By Industry Expert on November 22, 2006
Style Name: CLASSICItem Package Quantity: 1
To clarify some of the other comments here, the Ultralife 9-volt lithium battery is designed to operate an ionization-type smoke alarm for 10 years. The packaging for the Ultralife U9VL-X 9-volt lithium battery indicates that it's a smoke alarm battery. It will not power a carbon monoxide (CO) alarm for 10 years since a CO alarm operates at a higher current drain than a smoke alarm. Also, the sensor in most CO alarms is designed to operate for 5 to 7 years depending on the brand and model, after which the entire alarm has to be replaced. While the Ultralife battery should outlast an alkaline battery in a CO alarm, and other devices, by 2 to 3 times, don't expect it to last 10 years in devices other than ionization smoke alarms.
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42 of 45 people found the following review helpful By B. Lotze on June 23, 2007
Style Name: CLASSICItem Package Quantity: 1
* Assuming you have smoke detectors that are hardwired to AC, with battery backup (your 10 year cell). Since the AC will be running your detector 99% of the time, a long "shelf life" battery is just what you need to not mess with the dumb things too often. Although, be prepared to wedge the things in there - depending on your model this can be a tight squeeze. And taking it out if it was, may involve the use of vice type pliers.
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62 of 71 people found the following review helpful By Craig S. Harrison on August 29, 2006
Style Name: CLASSICItem Package Quantity: 1
I can't comment on this particular battery, but I will comment on this subject generally. We have 7 smoke alarms in our house -- building code overkill. One of our ceilings is 14 feet high. There is much more danger that I will be seriously injured in falling off of a ladder by replacing that high ceiling battery once a year than I will be injured in a house fire. But no one thought of the big picture or asked me when they built my house. And when that high ceiling battery starts to chirp in the middle of the night because it is low, forget about getting any more sleep. And you will be in fine condition to climb a tall ladder in the morning.

Lithium batteries should last 5-7 years, so that means I subject myself to falling from a ladder to one-fifth or one-seventh as often compared to regular batteries. Just be careful. Radio Shack makes Lithium batteries, but they are larger than normal 9 volt batteries and might not fit into your device.
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38 of 42 people found the following review helpful By Ning Ye on December 8, 2010
Style Name: CLASSICItem Package Quantity: 1
I have a smoke detector on a high ceiling, and changing battery is a lot of pain. Therefore I decided to put in the so-called 10-year battery and hoped I won't have to worry about it. It died in a bit over two years. Ironically, the regular, non ultra-life 9V batteries that I put in about the same time in my other detectors still run fine.
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30 of 33 people found the following review helpful By Daniel L. Olson on April 11, 2010
Style Name: CLASSICItem Package Quantity: 1
I bought 6 first alert smoke detectors 5/27/07.
They all came with Ultralife Lithium Power Cell batteries.
The smoke detectors all have stickers on them that say "10 year Lithium Battery".
I would assume that since they actually put the sticker directly on the battery compartment of the smoke alarm that they were not talking about a 10 year shelf life or storage life. All 6 of the Ultralife Power Cell Batteries failed and lost their charge in less than 3 years. All of them were sounding low battery beeps in hallways keeping condominium residents awake at night, resulting in multiple phone calls and complaints.
They were used in a dry, warm and normal atmosphere.
First Alert should change their Adds to read "10 year Warranty" but
absolutely not a "10 year battery"!
I think this is an embarrasment to the First Alert company to connect the
Ultralife name to any of their products.
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25 of 27 people found the following review helpful By Dano on September 6, 2010
Style Name: CLASSICItem Package Quantity: 1
Dead in 17 months. These things are supposed to last up to 10 years in an electric smoke alarm, i.e. it doesn't power the smoke alarm, it's just there as a backup in case of power failure. Well, I purchased 14 of these, and after 17 months, two have already failed (typical beep in the middle of the night, why does it always happen at night?) and I fully expect the rest to start failing one by one. Go for another brand or stick with regular alkaline for a fraction of the cost.
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24 of 26 people found the following review helpful By Rev. Gary L. Coulter on May 28, 2008
Style Name: CLASSICItem Package Quantity: 1 Verified Purchase
I had 3 of these installed in smoke alarms in May 2003, so was disappointed when two of them failed after about 4 years, and the last one just began to beep after exactly 5 years.

But then I discovered that the alarms I'm using have dual sensors (First Alert SA301), containing both an ionization and a photoelectric [these are not hard-wired, the battery does it all]. Therefore, if in reality, the batteries are running two detectors at once, I guess it shouldn't surprise me that they lasted half as long as advertised. Also, my alarm doesn't qualify for the 10 year warranty, because it contains a photoelectric sensor - the warranty is for ionization sensors only.

Cost wise it's probably a wash, one could buy several alkalines for the cost of this one. But the savings is on time: not having to change the batteries as often.
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39 of 45 people found the following review helpful By tommy on April 30, 2008
Style Name: CLASSICItem Package Quantity: 1
I have the an Ultralife 10 Year Smoke Detector Battery model U9VL-J. It has a use by date of 2017. The battery was installed in an ionization smoke detector on 07/05/2007. It was purchased 1-2 years before that. The detector just began giving the low battery warning on 4/30/2008. It did not even last a year. I generally get at least a year out of regular alkaline batteries in this detector. Maybe this battery is better suited to backup applications where the primary power source is house current.
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Most Recent Customer Reviews

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