Anyone Use Open Signal?

http://opensignal.com/about.php

So, it doesn't go to the carriers, but to a user-created coverage map.

 

Switch carriers?

 

Honestly, 2-3 bars (or, well, circles) isn't really terrible and I wouldn't think that would be too much of a battery drain in itself. If you're on iOS 8 you can see what's draining your battery by going to Settings|General|Usage|Battery Usage.

If Phone is up at the top and you haven't been making a lot of calls, then it's possible that signal strength is the issue, but my guess would be that it's something else. Once I did see a little note under Phone in the battery usage that said "Low signal strength" or something similar to that, so apparently the phone will note it if you are having a signal strength issue.

Obviously if you spend hours on the phone during the day, then I would expect to see the phone using a lot of battery life, but if you haven't made any or many calls, then it shouldn't be too high on the list.

 

A Wilson Cellular booster I have them in my cars and they work great