Arnold Aranez, a.k.a. Mr. Gadget, has posted an article on his blog on 7 tips to increase the battery life of your Samsung Galaxy S5. I thought the tips also apply to any Android smartphones, so do check out the informative article.
The new Samsung Galaxy S5, like HTC One M8, has an super power saving mode which extends your smartphone battery life during critical moments. In this super mode, the phone deactivates most of the features except the voice calls, messaging, and life features like alarm (varies among brands).
Arnold also designs and manufactures the Aranez line of quality leather smartphone cases for iPhone, iPad and Samsung Galaxy S series, including the latest Samsung Galaxy S5. They are professional-looking, functional, and durable.