Because some special equipment require these 9 volt batteries (the alarm clock Saving ... Essential for general smoke detectors ...) They can save the day ... If this is life ...
In case of power failure backup of your alarm clock usually goes through this type of 9-volt battery to not miss the alarm time for work or an important appointment, catching ... plane ... train. .. which will not wait for you ...!
As to our smoke detectors mandatory in France since 2015 ... They basically work with these batteries there!
Not bad also games for our children also require this type of batteries ... Think about it ...!
No need to pay more for another brand, because this batch of 9 v batteries sold by Amazon in box 8, is very economical and good performance. No need to spend more.
This lot is perfect and is a reserve in the very reasonable price to hand to avoid being caught off guard ...
Stored and shipped in a cardboard box suitable, they do not take place and will be in your reservation, the day you need it most !!