GP Ultra 9V PP3 Batteries 4 Pack - Smoke & Fire Alarms - 7 Yr Life

What can I say, good value for money and work as expected. Looks good quality as well.

Great value and quality. Ideal for mains powered smoke alarms that have battery backup. Batteries packaged in a handy plastic box.

I have pretty much converted over to this brand for batteries. Not the best in terms of longevity, but the cost v lifespan is better than some of the top brands. I use these in smoke alarms and so far they have lasted the year (changed anually regardless) and with no leaks or swelling of the case. Only complaint is the excessive plastic packaging - thick plastic box in a card sleeve and a further wrap of thick plastic. Unnecessary and largely unrecyclable. A card box would have been sufficient.

Arrived promptly and fitted our smoke alarm .

I have mains powered smoke detectors in the house and after 5 years the backup battery failed, making one of the smoke detectors making the usual beep. Having 6 of these devices in the house I was looking for a multipack as I expect other batteries to follow suit. The specs (and actual tests) of these GP batteries are as good as Duracell or Energizer ones so I gave it a try. Their shelf life is long too (exp. 2027). So far so good, the smoke alarm is still happy after a few months.

Not sure why devices still use batteries these days, but these 9 volters seem to be popular for smoke alarms. Bought these to replace some in my old flashing smoke alarms and they seem to be working well. Seemed to be good value, but only time will tell if they continue working long term.

Used for smoke alarm. Not able to give result only just received. However did a trial test and alarm was very loud.Definitely wake you up.

a good quantity in a good plastic firmly closed box that remain functional even after opening, after you take out the first battery the remaining batteries keep being sealed with triple cover: first a firm plastic film to the battery itself, then a double prism plastic box that is so well made that will be assigned to other use when all batteries are finished The batteries I received in December 2016 expires in July 2021 (4.5 years ahead), but that's a matter of luck

Nelle mie applicazioni domestiche, queste pile sono state ben performanti sia in termini di prestazioni, sia per il mantenimento delle caratteristiche nel tempo (ho pile di questa marca che hanno mantenuto i valori di tensione anche per una decina di anni)