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from: Ultralife Mfg. Brand: ULTRALIFE BATTERIES EAN: 0740286100017 Label: Ultralife Mfg. Manufacturer: Ultralife Mfg. Model: U9VL-X Publisher: Ultralife Mfg. Sales Rank: 333 Studio: Ultralife Mfg. Features:
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Editorial Review: Product Description: 9V Lithium Power Cell, Smoke Detector Battery, Lasts Up To 10 Times Longer Than Ordinary Batteries, Last Up To 4 Times Longer Than Alkaline Batteries, Recommend Ultralife Battery With Confindence For: Smoke Detector, Garage Door Openers, Security Transmitters, Radar Detectors, Remote Controls, & Radios Or Any Device Requiring A 9V Battery. Average Rating:
 Rating:  - 10 year claim is validThe title of this item is incorrect. It's actually U9VL, not UPVL. Apparently the 10 year claim is valid for the U9VL-J battery (that's the same battery Amazon is selling here). Here's a thorough study where they validated it: [...] Rating:  - Works as advertised, depending on the type of smoke alarmI 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 ... Read More Rating:  - Did not work for meI 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. Rating:  - Lasts 3 yearsBought a few of these in 2004, two have started giving out, three years later. Rating: - Five-Year Worked Great, I'll Trust the Ten-YearI haven't yet used the Ultralife 10-year battery but I can vouch for the 5-year version. I just pulled one from a smoke alarm and I had dated it July 13, 2003. So it lasted four years and four months, less than five years but it was also the smoke alarm closest to the kitchen, and thus was probably a bit drained by the fifty or so burnt cooking false alarms over the past four+ years. Ultralife makes a truly great product so I gladly upgraded and ordered four of the 10-year batteries. The added ... Read More |
