9V Duracell Industrial vs Expiring 9V Duracell Industrial Alkaline Batteries

Tested 9V Duracell Industrial Alkaline Battery and surprisingly managed to find another one that is at the end of it’s shelf life this month. That was a good opportunity to compare a fresher 9V Duracell Industrial battery with one that is and the end of its expiration date and see what is the change in capacity you can expect to get with the 9V Duracell Industrial batteries compared to a battery that is at around half of its shelf life.
We were quite pleasantly surprised by the result we got, at a little over 300 mAh for a battery that should be considered expired in a couple of days and would normally be discarded and thrown away. This is just less than 15% lower capacity than that of a 3 years fresher 9V Duracell Industrial alkaline battery, so do not be in a hurry to throw away alkaline batteries that are near their end of life if you still have not used them as they may actually have more to offer than what you expect. Of course it is also very important under what conditions they were stored, because if not properly stored they could actually end up completely discharged even before the end of their expiration date!
Duracell – Fresher Industrial – Expiring Industrial
0.05A load – 347 mAh – 303 mAh
0.05A load – 2.562 Wh – 2.191 mAh

Here is a table with results of 9V Alkaline batteries that we have tested so far

Battery

0.05A Load Test (mAh)0.05A Load Test (Wh)
9V IKEA Alkalisk Alkaline Battery492 mAh3.744 Wh
9V Q-Lite Alkaline Battery466 mAh3.540 Wh
9V Energizer Alkaline Battery456 mAh3.418 Wh
9V Maxell Alkaline Battery432 mAh3.251 Wh
9V Fujicell Alkaline Battery398 mAh2.954 Wh
9V Energizer Industrial Alkaline Battery380 mAh2.816 Wh
9V GP Ultra Alkaline Battery319 mAh2.373 Wh
9V Duracell Alkaline Battery311 mAh2.300 Wh
9V Varta High Energy Alkaline Battery258 mAh1.895 Wh
9V Duracell Procell Alkaline Battery245 mAh1.812 Wh

*Note:The testing data referenced from rightbattery.com