Small, powerful back-up batteries will guard against power outages and natural disasters.
[source: http://feeds.sustainablebusiness.com/~r/SBGeneralNews/~3/BG5r44LphwE/23774]
Small, powerful back-up batteries will guard against power outages and natural disasters.
[source: http://feeds.sustainablebusiness.com/~r/SBGeneralNews/~3/BG5r44LphwE/23774]