What is the average lifespan of Alkaline batteries in the Radio? I've had mine for 2 weeks, put in over 70 runs and the red indicator is still not blinking and it's still responsive. I threw in some ded rechargeables and the light did blink, so I know thats working. I thought they would have needed replacing at least once by now. I have some rechargables that I will put in eventually. My LHS gave me a 16 pack of Energizers as a freebie when I bought the truck, charger and 6 battery packs. So I'll kill those first. Nothing else in my house uses AA's since I got the power cell for my digi cam.