public static void initPowerChart(){

		if(shouldPollExtPower){
			powerChart = openChart("Power use (W)", "Power (W)", new String[]{"CPU + GPU + RAM", "System Total"}, 0, 10, true, 2, true, true, true);
		} else {
			powerChart = openChart("Power use (W)", "Power (W)", new String[]{"CPU + GPU + RAM"}, 0, 5, true, 2, true, true, true);
		}

	}