The Lifesaver III arrived here just in time for Blissdom Canada so I charged it up and packed it in my laptop bag and got ready to attend Canada’s most important social media conference. Now, as every iPhone user knows, Apple gadgets often run low on battery. They may be workhorses, but battery life isn’t ideal. My iPhone battery runs down fast when I spend the day tweeting, posting, sharing, liking and seeking out Google Maps directions to find the nearest restaurants. At Blogher in the summer I forgot my free no name charger that came courtesy of some event I attended last year. I ended up running for a…