Saturday, June 22
When I got home the first thing that I did was plug the device in to external power. Sometimes that works, but in this case it did not. Time to look in the User Manual. The User Manual says that if the battery switch is not locked the device will not turn on. A quick check underneath the WorkPad and I found that the battery switch was in the unlock position. I switched it to locked, and the device turned on. I might have left it unlocked when I removed the battery earlier.