Excessive battery drain during talk time?

I know that the iPhone 4s and its battery drain has been discussed here infinitum...I myself have been reading all the threads for the past week and trying various fixes before doing a full restore and setting my phone up as new.  However, I am still experiencing what would seem to be an excessive drain ONLY during talk time. 
My standby time runs close to the specs, my wi-fi and 3G web surfing are not up to specs but certainly no bad shakes and better than most. 
Still, my battery depletes 1% every 2 minutes while I talk. 
Does anyone experience this issue or know why it might occur? I will say that I use Verizon and we do not often have a strong connection where I live.  2-3 bars max.  Could this be the culprit? 

Yes, signal strength is the culprit. The phone uses 10 times as much power at 1 bar as it does at 5 bars (Not just the iPhone; all phones do). Reason: The lower the signal strength the higher the output power from the phone. So the phone's transmitter can safely connect at 50 mw with 5 bars, but for the weakest signal it goes up to 600 mw (and the phone gets hot). In between it uses an inbetween amount of power. At 5 bars it should go down 1% for every 4 1/2 minutes.

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