For the uninterrupted power supply of electrical equipment, there are these batteries until the emergency power supply has started up. Installations room on the lower level of the Military fortress «Furggels» above Pfäfers, St. Margrethenberg, Switzerland, Nov 6, 2010.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/70981241@N00">Kecko</a> from Switzerland (Rheintal SG, the border valley between Switzerland and Austria)
CC BY 2.0
<p><a rel="nofollow" class="external text" href="https://www.flickr.com/photos/kecko/5166616214/">Fort «Furggels» - Battery Power Supply</a>
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