Your browser is out of date! It has known security flaws and may not display all features of this and other websites.
¡Tu navegador no está actualizado! Contiene fallos de seguridad conocidos y podría no mostrar todas las funciones de este y otros sitios web.
Votre fureteur est désuet! Il contient des failles de sécurité importantes et pourrait ne pas afficher toutes les caractéristiques de ce site et d’autres sites.
Please upgrade your browser to improve your experience.
Actualiza tu navegador para mejorar tu experiencia.
Veuillez mettre à niveau votre fureteur pour améliorer votre expérience.
Ultra Lithium CR2 Battery is rated
3.7 out of
Rated 5 out of
Sailor John from
This is a comment on a 1-star reviewSo, the person bought a "new" smoke detector with this battery in it and it didn't last very long. There is a LOT we don't know: (1) how old was this new smoke detector? The seller may have sold it cheaper because it had been sitting for a while. (2) was the house power ever off? in which case the battery would have taken over and drained. (3) Maybe there was a problem with the manufacturer or design of the smoke detector - we don't know (4) a high heat or humid environment [the detector is/should be ceiling mounted] can cause premature problems.
The smoke detector buyer really should have pinged on the smoke detector manufacturer because it was their "system" of which the battery is only a part. Having said all this, there is such a thing as probability - of manufacturing error. Could have been the batter, but could have also been a part (resistor, capacitor, IC, etc.) in the smoke detector. The battery is a comparatively simple construction so I'd really be looking at the smoke detector. Having said all this, there is also such a thing as consumer error. Given the write-up, I'd take this persons "battery review" with a grain of salt.
Date published: 2018-01-23
Rated 5 out of
longest lasting batteryGreat battery for my kids high-drain devices. Works in Video Games and
remote controlled cars.
Date published: 2017-11-14
Rated 1 out of
Battery Expired after 3 months in smoke DetectorIncluded with my "First Alert" smoke detector 2 pack were new, Duracell Ultra CR2 batteries sealed separate from the detectors. Expiration date on the batteries are March 2021. I installed the smoke detectors after inserting the batteries 3 months ago. One of my detectors started to chirp last night indicating a "Low Charge Battery". ??? Being a Safety Device for the home, seems like it should have lasted a few years being it is included in a detector designed by a well known brand. Being a special size they have us over a barrel, charging a high price and poor performance.