A couple of teams have had problem with their laptops that were very puzzling. In this case, a working computer became non-functional and unresponsive. The initial guess was a dead battery but the machines were reported to have been “plugged in all day”. It turns out that the problem is a bit of confusion over the proper power supply for the laptop. The power connector for the laptop happens to be essentially the same as the rest of the barrel connectors for the other equipment. The correct power supply for the laptop provides 19V power. Everything else provides 12V.
The confusion centers on the extra power supply provided with your MallinCAMs. In normal circumstances we don’t use this. A picture of one of these power supplies is shown below:
The correct power supply for the laptop is shown below. This has a longer cable and the bulky transformer portion is at the plug end. Note that the plug can be removed and rotated if your wall plug or power strip doesn’t like the orientation you are using.
As always, the computer will actually tell you if it is charging properly. There is a little red light on the front of the machine that you can see even with the lid closed. Red means it is charging. While running, there is a tool on the task bar that will tell you if you are on battery or wall power.