We are so tied to our digital cameras and other stuff like our cell phones, iPods, BT headsets, and the such. So many of the devices today charge via a USB connection for things like the iPod or cell phones. Then you have some of us that travel with our digital SLR's that might use different batteries.
I found a solution with the ProMaster battery chargers. Right now I am shooting with both Nikon and Olympus DSLR-type cameras. With three different battery types. Which would require me to carry three different battery chargers.
Yet with any of these battery chargers - there are added bonuses that I like. First of which is that any device that charges via a USB cord can be be charged with these chargers. The other bonus is that that ProMaster offers a travel kit. This is great place to store the charger and extra batteries. But also included a car charger adapter as well.
Not sure about you, but I am so over needing to carry so many charging "bricks" with me. And as I fly less these days (another post maybe
LOL) keeping my batteries and other devices charged is a good thing in my car as I drive to my next stop.