I imagine that a lot of our readers are trying out their smartphones in the backcountry, using mapping applications for navigation. One of the problems with this (and there are several), is that few things will drain your battery faster than your phone searching for a signal where there is none, or where reception is marginal.
One easy solution is to put your phone in airplane mode, but I recently came across a specialized use case where that wouldn’t work. Using the SPOT Connect, I needed to have Bluetooth enabled, and airplane mode wouldn’t allow it. That’s when I discovered Dazzle, a free Android widget (shown above, at top) that lets you independently turn off your phone’s cellular radio. It can be configured to take up less space, and you can select which items you wish to control with it.
I covered this in my SPOT Connect review, but it was buried pretty deep, so I wanted to bring it to the attention of other folks who might have a use for it. Oh, and according to one reader, iPhone users can just put their phone in airplane mode and then go back in and enable Bluetooth or WiFi as needed.