My power went out yesterday while I was away from home. My roomate just called me, he thinks they didnt make it ? POwers been out for two days, with no heat, meaning no heatrocks and no heatpad, Is there some sort of battery pack heat source somone can recomend ? I am hoping there just not moving much, I asked him he said he asnt poked them or anything, I got mad at him last time, he hasnt done it since, he said it was 7 degrees thismorning, its snowing where I live, ( its colder outside ) what are your thought s ? battery lamp ?