Power Consumption of T-Mobile G1

I don't know if someone ever did this test before, I just want to know how much the current on 5V power input is.

I used a 5V Power Adapter, and a Current Clamp Meter to measure the current on the power cable, the results are listed below:

1. screen off - 160mA

2. screen on - 250mA

3. wifi/screen on - 300mA

4. gps on - 500mA

5. fly mode/screen off - 180mA

In these situations, the power consumption is almost same, except with GPS turned on. After the battery is fully changed, the current will be only for the cell phone operation.

The max power consumption is about 2.5W, when is GPS is on.

Note:
We should know 2.5W is very large for a cell phone, and the current on 5V is not same as the current on 3.7V - voltage of battery.