Device power consumption
Power consumption of running GTA04
With screen off in idle it should be ~75mA, with screen on it should be ~200mA
Power consumption can also heavily reduced by letting uarts power down. They do not consume too much by themselves but might be the last user of some more power-hungry clocks. You can get below < 30mA idle current, depending on how much other stuff is active
Power consumption of GTA04 in suspend
During suspend all devices except modem and RAM should be turned off. Currently 3.5 kernel draws in this state ~25mA. This was tested with QtMoko v49. The numbers vary on your location and can be in interval 22..35mA.
Modem should normally draw 3..10mA, but it can be a lot more when signal is bad.
6mA (at 2.8V) about 2-3 mA at battery voltage
Latest Discussion about Power Consumption
The following script can be used to measure power consumption.
It disables charging, suspends for 5 minutes and reports apparent power usage by monitoring the battery.